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Prepared config directory for stm32f769i-disco as a copy of stm32f746g-disco

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Titus von Boxberg 2017-07-14 19:26:44 +02:00
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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
if ARCH_BOARD_STM32F746G_DISCO
endif # ARCH_BOARD_STM32F746G_DISCO

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README
======
This README discusses issues unique to NuttX configurations for the
STMicro STM32F746G-DISCO development board featuring the STM32F746NGH6
MCU. The STM32F746NGH6 is a 216MHz Cortex-M7 operation with 1024Kb Flash
memory and 300Kb SRAM. The board features:
- On-board ST-LINK/V2 for programming and debugging,
- Mbed-enabled (mbed.org)
- 4.3-inch 480x272 color LCD-TFT with capacitive touch screen
- Camera connector
- SAI audio codec
- Audio line in and line out jack
- Stereo speaker outputs
- Two ST MEMS microphones
- SPDIF RCA input connector
- Two pushbuttons (user and reset)
- 128-Mbit Quad-SPI Flash memory
- 128-Mbit SDRAM (64 Mbits accessible)
- Connector for microSD card
- RF-EEPROM daughterboard connector
- USB OTG HS with Micro-AB connectors
- USB OTG FS with Micro-AB connectors
- Ethernet connector compliant with IEEE-802.3-2002
Refer to the http://www.st.com website for further information about this
board (search keyword: stm32f746g-disco)
Contents
========
- STATUS
- Development Environment
- LEDs and Buttons
- Serial Console
- Porting STM32 F4 Drivers
- FPU
- STM32F746G-DISCO-specific Configuration Options
- Configurations
STATUS
======
2015-07-19: The basic NSH configuration is functional using a serial
console on USART6 and RS-232 shield. Very few other drivers are in
place yet.
2015-07-20: STM32 F7 Ethernet appears to be functional, but has had
only light testing.
Development Environment
=======================
The Development environments for the STM32F746G-DISCO board are identical
to the environments for other STM32F boards. For full details on the
environment options and setup, see the README.txt file in the
config/stm32f746g-disco directory.
LEDs and Buttons
================
LEDs
----
The STM32F746G-DISCO board has numerous LEDs but only one, LD1 located
near the reset button, that can be controlled by software (LD2 is a power
indicator, LD3-6 indicate USB status, LD7 is controlled by the ST-Link).
LD1 is controlled by PI1 which is also the SPI2_SCK at the Arduino
interface. One end of LD1 is grounded so a high output on PI1 will
illuminate the LED.
This LED is not used by the board port unless CONFIG_ARCH_LEDS is defined.
In that case, the usage by the board port is defined in include/board.h
and src/stm32_leds.c. The LEDs are used to encode OS-related events as
follows:
SYMBOL Meaning LD1
------------------- ----------------------- ------
LED_STARTED NuttX has been started OFF
LED_HEAPALLOCATE Heap has been allocated OFF
LED_IRQSENABLED Interrupts enabled OFF
LED_STACKCREATED Idle stack created ON
LED_INIRQ In an interrupt N/C
LED_SIGNAL In a signal handler N/C
LED_ASSERTION An assertion failed N/C
LED_PANIC The system has crashed FLASH
Thus is LD1 is statically on, NuttX has successfully booted and is,
apparently, running normally. If LD1 is flashing at approximately
2Hz, then a fatal error has been detected and the system has halted.
Buttons
-------
Pushbutton B1, labelled "User", is connected to GPIO PI11. A high
value will be sensed when the button is depressed.
Serial Console
==============
These configurations assume that you are using a standard Arduio RS-232
shield with the serial interface with RX on pin D0 and TX on pin D1:
-------- ---------------
STM32F7
ARDUIONO FUNCTION GPIO
-- ----- --------- -----
DO RX USART6_RX PC7
D1 TX USART6_TX PC6
-- ----- --------- -----
Porting STM32 F4 Drivers
========================
The STM32F746 is very similar to the STM32 F429 and many of the drivers
in the stm32/ directory could be ported here: ADC, BBSRAM, CAN, DAC,
DMA2D, FLASH, I2C, IWDG, LSE, LSI, LTDC, OTGFS, OTGHS, PM, Quadrature
Encoder, RNG, RTCC, SDMMC (was SDIO), Timer/counters, and WWDG.
Many of these drivers would be ported very simply; many ports would just
be a matter of copying files and some seach-and-replacement. Like:
1. Compare the two register definitions files; make sure that the STM32
F4 peripheral is identical (or nearly identical) to the F7
peripheral. If so then,
2. Copy the register definition file from the stm32/chip directory to
the stm32f7/chip directory, making name changes as appropriate and
updating the driver for any minor register differences.
3. Copy the corresponding C file (and possibly a matching .h file) from
the stm32/ directory to the stm32f7/ directory again with naming
changes and changes for any register differences.
4. Update the Make.defs file to include the new C file in the build.
For other files, particularly those that use DMA, the port will be
significantly more complex. That is because the STM32F7 has a D-Cache
and, as a result, we need to exercise much more care to maintain cache
coherency. There is a Wiki page discussing the issues of porting
drivers from the stm32/ to the stm32f7/ directories here:
http://www.nuttx.org/doku.php?id=wiki:howtos:port-drivers_stm32f7
FPU
===
FPU Configuration Options
-------------------------
There are two version of the FPU support built into the STM32 port.
1. Lazy Floating Point Register Save.
This is an implementation that saves and restores FPU registers only on
context switches. This means: (1) floating point registers are not
stored on each context switch and, hence, possibly better interrupt
performance. But, (2) since floating point registers are not saved,
you cannot use floating point operations within interrupt handlers.
This logic can be enabled by simply adding the following to your .config
file:
CONFIG_ARCH_FPU=y
CONFIG_ARMV7M_CMNVECTOR=y
CONFIG_ARMV7M_LAZYFPU=y
2. Non-Lazy Floating Point Register Save
Mike Smith has contributed an extensive re-write of the ARMv7-M exception
handling logic. This includes verified support for the FPU. These changes
have not yet been incorporated into the mainline and are still considered
experimental. These FPU logic can be enabled with:
CONFIG_ARCH_FPU=y
CONFIG_ARMV7M_CMNVECTOR=y
You will probably also changes to the ld.script in if this option is selected.
This should work:
-ENTRY(_stext)
+ENTRY(__start) /* Treat __start as the anchor for dead code stripping */
+EXTERN(_vectors) /* Force the vectors to be included in the output */
STM32F746G-DISCO-specific Configuration Options
===============================================
CONFIG_ARCH - Identifies the arch/ subdirectory. This should
be set to:
CONFIG_ARCH=arm
CONFIG_ARCH_family - For use in C code:
CONFIG_ARCH_ARM=y
CONFIG_ARCH_architecture - For use in C code:
CONFIG_ARCH_CORTEXM7=y
CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
CONFIG_ARCH_CHIP=stm32f7
CONFIG_ARCH_CHIP_name - For use in C code to identify the exact
chip:
CONFIG_ARCH_CHIP_STM32F746=y
CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG - Enables special STM32 clock
configuration features.
CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG=n
CONFIG_ARCH_BOARD - Identifies the configs/ subdirectory and,
hence, the board that supports the particular chip or SoC.
CONFIG_ARCH_BOARD=stm32f746g-disco (for the STM32F746G-DISCO development board)
CONFIG_ARCH_BOARD_name - For use in C code
CONFIG_ARCH_BOARD_STM32F746G_DISCO=y
CONFIG_ARCH_LOOPSPERMSEC - Must be calibrated for correct operation
of delay loops
CONFIG_ENDIAN_BIG - should not be defined.
CONFIG_RAM_SIZE - Describes the installed DRAM (SRAM in this case):
CONFIG_RAM_SIZE=0x00010000 (64Kb)
CONFIG_RAM_START - The start address of installed SRAM (SRAM1)
CONFIG_RAM_START=0x20010000
CONFIG_RAM_SIZE=245760
This configurations use only SRAM1 for data storage. The heap includes
the remainder of SRAM1. If CONFIG_MM_REGIONS=2, then SRAM2 will be
included in the heap.
DTCM SRAM is never included in the heap because it cannot be used for
DMA. A DTCM allocator is available, however, so that DTCM can be
managed with dtcm_malloc(), dtcm_free(), etc.
In order to use FSMC SRAM, the following additional things need to be
present in the NuttX configuration file:
CONFIG_STM32F7_FSMC_SRAM - Indicates that SRAM is available via the
FSMC (as opposed to an LCD or FLASH).
CONFIG_HEAP2_BASE - The base address of the SRAM in the FSMC address space (hex)
CONFIG_HEAP2_SIZE - The size of the SRAM in the FSMC address space (decimal)
CONFIG_ARCH_FPU - The STM32F746G-DISCO supports a floating point unit (FPU)
CONFIG_ARCH_FPU=y
CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to boards that
have LEDs
CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
stack. If defined, this symbol is the size of the interrupt
stack in bytes. If not defined, the user task stacks will be
used during interrupt handling.
CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to board architecture.
CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
cause a 100 second delay during boot-up. This 100 second delay
serves no purpose other than it allows you to calibrate
CONFIG_ARCH_LOOPSPERMSEC. You simply use a stop watch to measure
the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
the delay actually is 100 seconds.
Individual subsystems can be enabled:
APB1
----
CONFIG_STM32F7_TIM2 TIM2
CONFIG_STM32F7_TIM3 TIM3
CONFIG_STM32F7_TIM4 TIM4
CONFIG_STM32F7_TIM5 TIM5
CONFIG_STM32F7_TIM6 TIM6
CONFIG_STM32F7_TIM7 TIM7
CONFIG_STM32F7_TIM12 TIM12
CONFIG_STM32F7_TIM13 TIM13
CONFIG_STM32F7_TIM14 TIM14
CONFIG_STM32F7_LPTIM1 LPTIM1
CONFIG_STM32F7_RTC RTC
CONFIG_STM32F7_BKP BKP Registers
CONFIG_STM32F7_WWDG WWDG
CONFIG_STM32F7_IWDG IWDG
CONFIG_STM32F7_SPI2 SPI2
CONFIG_STM32F7_I2S2 I2S2
CONFIG_STM32F7_SPI3 SPI3
CONFIG_STM32F7_I2S3 I2S3
CONFIG_STM32F7_SPDIFRX SPDIFRX
CONFIG_STM32F7_USART2 USART2
CONFIG_STM32F7_USART3 USART3
CONFIG_STM32F7_UART4 UART4
CONFIG_STM32F7_UART5 UART5
CONFIG_STM32F7_I2C1 I2C1
CONFIG_STM32F7_I2C2 I2C2
CONFIG_STM32F7_I2C3 I2C3
CONFIG_STM32F7_I2C4 I2C4
CONFIG_STM32F7_CAN1 CAN1
CONFIG_STM32F7_CAN2 CAN2
CONFIG_STM32F7_HDMICEC HDMI-CEC
CONFIG_STM32F7_PWR PWR
CONFIG_STM32F7_DAC DAC
CONFIG_STM32F7_UART7 UART7
CONFIG_STM32F7_UART8 UART8
APB2
----
CONFIG_STM32F7_TIM1 TIM1
CONFIG_STM32F7_TIM8 TIM8
CONFIG_STM32F7_USART1 USART1
CONFIG_STM32F7_USART6 USART6
CONFIG_STM32F7_ADC ADC1 - ADC2 - ADC3
CONFIG_STM32F7_SDMMC1 SDMMC1
CONFIG_STM32F7_SPI1 SPI1
CONFIG_STM32F7_SPI4 SPI4
CONFIG_STM32F7_SYSCFG SYSCFG
CONFIG_STM32F7_EXTI EXTI
CONFIG_STM32F7_TIM9 TIM9
CONFIG_STM32F7_TIM10 TIM10
CONFIG_STM32F7_TIM11 TIM11
CONFIG_STM32F7_SPI5 SPI5
CONFIG_STM32F7_SPI6 SPI6
CONFIG_STM32F7_SAI1 SAI1
CONFIG_STM32F7_SAI2 SAI2
CONFIG_STM32F7_LTDC LCD-TFT
AHB1
----
CONFIG_STM32F7_CRC CRC
CONFIG_STM32F7_BKPSRAM BKPSRAM
CONFIG_STM32F7_DMA1 DMA1
CONFIG_STM32F7_DMA2 DMA2
CONFIG_STM32F7_ETHMAC Ethernet MAC
CONFIG_STM32F7_DMA2D Chrom-ART (DMA2D)
CONFIG_STM32F7_USBOTGHS USB OTG HS
AHB2
----
CONFIG_STM32F7_USBOTGFS USB OTG FS
CONFIG_STM32F7_DCMI DCMI
CONFIG_STM32F7_CRYP CRYP
CONFIG_STM32F7_HASH HASH
CONFIG_STM32F7_RNG RNG
AHB3
----
CONFIG_STM32F7_FSMC FSMC control registers
CONFIG_STM32F7_QUADSPI QuadSPI Control
Timer devices may be used for different purposes. One special purpose is
to generate modulated outputs for such things as motor control. If CONFIG_STM32F7_TIMn
is defined (as above) then the following may also be defined to indicate that
the timer is intended to be used for pulsed output modulation, ADC conversion,
or DAC conversion. Note that ADC/DAC require two definition: Not only do you have
to assign the timer (n) for used by the ADC or DAC, but then you also have to
configure which ADC or DAC (m) it is assigned to.
CONFIG_STM32F7_TIMn_PWM Reserve timer n for use by PWM, n=1,..,14
CONFIG_STM32F7_TIMn_ADC Reserve timer n for use by ADC, n=1,..,14
CONFIG_STM32F7_TIMn_ADCm Reserve timer n to trigger ADCm, n=1,..,14, m=1,..,3
CONFIG_STM32F7_TIMn_DAC Reserve timer n for use by DAC, n=1,..,14
CONFIG_STM32F7_TIMn_DACm Reserve timer n to trigger DACm, n=1,..,14, m=1,..,2
For each timer that is enabled for PWM usage, we need the following additional
configuration settings:
CONFIG_STM32F7_TIMx_CHANNEL - Specifies the timer output channel {1,..,4}
NOTE: The STM32 timers are each capable of generating different signals on
each of the four channels with different duty cycles. That capability is
not supported by this driver: Only one output channel per timer.
STM32F746G-DISCO specific device driver settings
CONFIG_U[S]ARTn_SERIAL_CONSOLE - selects the USARTn (n=1,2,3) or UART
m (m=4,5) for the console and ttys0 (default is the USART1).
CONFIG_U[S]ARTn_RXBUFSIZE - Characters are buffered as received.
This specific the size of the receive buffer
CONFIG_U[S]ARTn_TXBUFSIZE - Characters are buffered before
being sent. This specific the size of the transmit buffer
CONFIG_U[S]ARTn_BAUD - The configure BAUD of the UART. Must be
CONFIG_U[S]ARTn_BITS - The number of bits. Must be either 7 or 8.
CONFIG_U[S]ARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
CONFIG_U[S]ARTn_2STOP - Two stop bits
STM32F746G-DISCO CAN Configuration
CONFIG_CAN - Enables CAN support (one or both of CONFIG_STM32F7_CAN1 or
CONFIG_STM32F7_CAN2 must also be defined)
CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID. Default
Standard 11-bit IDs.
CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
Default: 8
CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.
Default: 4
CONFIG_CAN_LOOPBACK - A CAN driver may or may not support a loopback
mode for testing. The STM32 CAN driver does support loopback mode.
CONFIG_CAN1_BAUD - CAN1 BAUD rate. Required if CONFIG_STM32F7_CAN1 is defined.
CONFIG_CAN2_BAUD - CAN1 BAUD rate. Required if CONFIG_STM32F7_CAN2 is defined.
CONFIG_CAN_TSEG1 - The number of CAN time quanta in segment 1. Default: 6
CONFIG_CAN_TSEG2 - the number of CAN time quanta in segment 2. Default: 7
CONFIG_STM32_CAN_REGDEBUG - If CONFIG_DEBUG_FEATURES is set, this will generate an
dump of all CAN registers.
STM32F746G-DISCO SPI Configuration
CONFIG_STM32F7_SPI_INTERRUPTS - Select to enable interrupt driven SPI
support. Non-interrupt-driven, poll-waiting is recommended if the
interrupt rate would be to high in the interrupt driven case.
CONFIG_STM32F7_SPI_DMA - Use DMA to improve SPI transfer performance.
Cannot be used with CONFIG_STM32F7_SPI_INTERRUPT.
STM32F746G-DISCO DMA Configuration
CONFIG_SDIO_DMA - Support DMA data transfers. Requires CONFIG_STM32F7_SDIO
and CONFIG_STM32F7_DMA2.
CONFIG_STM32_SDIO_DMAPRIO - Select SDIO DMA interrupt priority.
Default: Medium
CONFIG_STM32_SDIO_WIDTH_D1_ONLY - Select 1-bit transfer mode. Default:
4-bit transfer mode.
STM32 USB OTG FS Host Driver Support
Pre-requisites
CONFIG_USBDEV - Enable USB device support
CONFIG_USBHOST - Enable USB host support
CONFIG_STM32F7_OTGFS - Enable the STM32 USB OTG FS block
CONFIG_STM32F7_SYSCFG - Needed
CONFIG_SCHED_WORKQUEUE - Worker thread support is required
Options:
CONFIG_STM32F7_OTGFS_RXFIFO_SIZE - Size of the RX FIFO in 32-bit words.
Default 128 (512 bytes)
CONFIG_STM32F7_OTGFS_NPTXFIFO_SIZE - Size of the non-periodic Tx FIFO
in 32-bit words. Default 96 (384 bytes)
CONFIG_STM32F7_OTGFS_PTXFIFO_SIZE - Size of the periodic Tx FIFO in 32-bit
words. Default 96 (384 bytes)
CONFIG_STM32F7_OTGFS_DESCSIZE - Maximum size of a descriptor. Default: 128
CONFIG_STM32F7_OTGFS_SOFINTR - Enable SOF interrupts. Why would you ever
want to do that?
CONFIG_STM32F7_USBHOST_REGDEBUG - Enable very low-level register access
debug. Depends on CONFIG_DEBUG_FEATURES.
CONFIG_STM32F7_USBHOST_PKTDUMP - Dump all incoming and outgoing USB
packets. Depends on CONFIG_DEBUG_FEATURES.
Configurations
==============
Common Configuration Information
--------------------------------
Each STM32F746G-DISCO configuration is maintained in a sub-directory and
can be selected as follow:
cd tools
./configure.sh stm32f746g-disco/<subdir>
cd -
Where <subdir> is one of the sub-directories listed below.
NOTES:
1. These configurations use the mconf-based configuration tool. To
change this configuration using that tool, you should:
a. Build and install the kconfig-mconf tool. See nuttx/README.txt
see additional README.txt files in the NuttX tools repository.
b. Execute 'make menuconfig' in nuttx/ in order to start the
reconfiguration process.
2. By default, these configurations use the USART6 for the serial
console. Pins are configured to that RX/TX are available at
pins D0 and D1 of the Arduion connectors. This should be compatible
with most RS-232 shields.
3. All of these configurations are set up to build under Windows using the
"GNU Tools for ARM Embedded Processors" that is maintained by ARM
(unless stated otherwise in the description of the configuration).
https://launchpad.net/gcc-arm-embedded
As of this writing (2015-03-11), full support is difficult to find
for the Cortex-M7, but is supported by at least this realease of
the ARM GNU tools:
https://launchpadlibrarian.net/209776344/release.txt
That toolchain selection can easily be reconfigured using
'make menuconfig'. Here are the relevant current settings:
Build Setup:
CONFIG_HOST_WINDOWS=y : Window environment
CONFIG_WINDOWS_CYGWIN=y : Cywin under Windows
System Type -> Toolchain:
CONFIG_ARMV7M_TOOLCHAIN_GNU_EABIW=y : GNU ARM EABI toolchain
NOTE: As of this writing, there are issues with using this tool at
the -Os level of optimization. This has not been proven to be a
compiler issue (as least not one that might not be fixed with a
well placed volatile qualifier). However, in any event, it is
recommend that you use not more that -O2 optimization.
Configuration Directories
-------------------------
nsh:
---
Configures the NuttShell (NSH) located at apps/examples/nsh. The
Configuration enables the serial interfaces on UART6. Support for
builtin applications is enabled, but in the base configuration no
builtin applications are selected.

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/************************************************************************************
* configs/stm32f746g-disco/include/board.h
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __CONFIG_STM32F746G_DISCO_INCLUDE_BOARD_H
#define __CONFIG_STM32F746G_DISCO_INCLUDE_BOARD_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
#endif
#include "stm32_rcc.h"
#ifdef CONFIG_STM32F7_SDMMC1
# include "stm32_sdmmc.h"
#endif
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Clocking *************************************************************************/
/* The STM32F7 Discovery board provides the following clock sources:
*
* X1: 24 MHz oscillator for USB OTG HS PHY and camera module (daughter board)
* X2: 25 MHz oscillator for STM32F746NGH6 microcontroller and Ethernet PHY.
* X3: 32.768 KHz crystal for STM32F746NGH6 embedded RTC
*
* So we have these clock source available within the STM32
*
* HSI: 16 MHz RC factory-trimmed
* LSI: 32 KHz RC
* HSE: On-board crystal frequency is 25MHz
* LSE: 32.768 kHz
*/
#define STM32_BOARD_XTAL 25000000ul
#define STM32_HSI_FREQUENCY 16000000ul
#define STM32_LSI_FREQUENCY 32000
#define STM32_HSE_FREQUENCY STM32_BOARD_XTAL
#define STM32_LSE_FREQUENCY 32768
/* Main PLL Configuration.
*
* PLL source is HSE = 25,000,000
*
* PLL_VCO = (STM32_HSE_FREQUENCY / PLLM) * PLLN
* Subject to:
*
* 2 <= PLLM <= 63
* 192 <= PLLN <= 432
* 192 MHz <= PLL_VCO <= 432MHz
*
* SYSCLK = PLL_VCO / PLLP
* Subject to
*
* PLLP = {2, 4, 6, 8}
* SYSCLK <= 216 MHz
*
* USB OTG FS, SDMMC and RNG Clock = PLL_VCO / PLLQ
* Subject to
* The USB OTG FS requires a 48 MHz clock to work correctly. The SDMMC
* and the random number generator need a frequency lower than or equal
* to 48 MHz to work correctly.
*
* 2 <= PLLQ <= 15
*/
#if defined(CONFIG_STM32F7_USBOTHFS)
/* Highest SYSCLK with USB OTG FS clock = 48 MHz
*
* PLL_VCO = (25,000,000 / 25) * 384 = 384 MHz
* SYSCLK = 384 MHz / 2 = 192 MHz
* USB OTG FS, SDMMC and RNG Clock = 384 MHz / 8 = 48MHz
*/
#define STM32_PLLCFG_PLLM RCC_PLLCFG_PLLM(25)
#define STM32_PLLCFG_PLLN RCC_PLLCFG_PLLN(384)
#define STM32_PLLCFG_PLLP RCC_PLLCFG_PLLP_2
#define STM32_PLLCFG_PLLQ RCC_PLLCFG_PLLQ(8)
#define STM32_VCO_FREQUENCY ((STM32_HSE_FREQUENCY / 25) * 384)
#define STM32_SYSCLK_FREQUENCY (STM32_VCO_FREQUENCY / 2)
#define STM32_OTGFS_FREQUENCY (STM32_VCO_FREQUENCY / 8)
#elif defined(CONFIG_STM32F7_SDMMC1) || defined(CONFIG_STM32F7_RNG)
/* Highest SYSCLK with USB OTG FS clock <= 48MHz
*
* PLL_VCO = (25,000,000 / 25) * 432 = 432 MHz
* SYSCLK = 432 MHz / 2 = 216 MHz
* USB OTG FS, SDMMC and RNG Clock = 432 MHz / 10 = 43.2 MHz
*/
#define STM32_PLLCFG_PLLM RCC_PLLCFG_PLLM(25)
#define STM32_PLLCFG_PLLN RCC_PLLCFG_PLLN(432)
#define STM32_PLLCFG_PLLP RCC_PLLCFG_PLLP_2
#define STM32_PLLCFG_PLLQ RCC_PLLCFG_PLLQ(10)
#define STM32_VCO_FREQUENCY ((STM32_HSE_FREQUENCY / 25) * 432)
#define STM32_SYSCLK_FREQUENCY (STM32_VCO_FREQUENCY / 2)
#define STM32_OTGFS_FREQUENCY (STM32_VCO_FREQUENCY / 10)
#else
/* Highest SYSCLK
*
* PLL_VCO = (25,000,000 / 25) * 432 = 432 MHz
* SYSCLK = 432 MHz / 2 = 216 MHz
*/
#define STM32_PLLCFG_PLLM RCC_PLLCFG_PLLM(25)
#define STM32_PLLCFG_PLLN RCC_PLLCFG_PLLN(432)
#define STM32_PLLCFG_PLLP RCC_PLLCFG_PLLP_2
#define STM32_PLLCFG_PLLQ RCC_PLLCFG_PLLQ(10)
#define STM32_VCO_FREQUENCY ((STM32_HSE_FREQUENCY / 25) * 432)
#define STM32_SYSCLK_FREQUENCY (STM32_VCO_FREQUENCY / 2)
#define STM32_OTGFS_FREQUENCY (STM32_VCO_FREQUENCY / 10)
#endif
/* Configure factors for PLLSAI clock */
#define STM32_RCC_PLLSAICFGR_PLLSAIN RCC_PLLSAICFGR_PLLSAIN(192)
#define STM32_RCC_PLLSAICFGR_PLLSAIP RCC_PLLSAICFGR_PLLSAIP(2)
#define STM32_RCC_PLLSAICFGR_PLLSAIQ RCC_PLLSAICFGR_PLLSAIQ(2)
#define STM32_RCC_PLLSAICFGR_PLLSAIR RCC_PLLSAICFGR_PLLSAIR(2)
/* Configure Dedicated Clock Configuration Register */
#define STM32_RCC_DCKCFGR1_PLLI2SDIVQ RCC_DCKCFGR1_PLLI2SDIVQ(1)
#define STM32_RCC_DCKCFGR1_PLLSAIDIVQ RCC_DCKCFGR1_PLLSAIDIVQ(1)
#define STM32_RCC_DCKCFGR1_PLLSAIDIVR RCC_DCKCFGR1_PLLSAIDIVR(0)
#define STM32_RCC_DCKCFGR1_SAI1SRC RCC_DCKCFGR1_SAI1SEL(0)
#define STM32_RCC_DCKCFGR1_SAI2SRC RCC_DCKCFGR1_SAI2SEL(0)
#define STM32_RCC_DCKCFGR1_TIMPRESRC 0
#define STM32_RCC_DCKCFGR1_DFSDM1SRC 0
#define STM32_RCC_DCKCFGR1_ADFSDM1SRC 0
/* Configure factors for PLLI2S clock */
#define STM32_RCC_PLLI2SCFGR_PLLI2SN RCC_PLLI2SCFGR_PLLI2SN(192)
#define STM32_RCC_PLLI2SCFGR_PLLI2SP RCC_PLLI2SCFGR_PLLI2SP(2)
#define STM32_RCC_PLLI2SCFGR_PLLI2SQ RCC_PLLI2SCFGR_PLLI2SQ(2)
#define STM32_RCC_PLLI2SCFGR_PLLI2SR RCC_PLLI2SCFGR_PLLI2SR(2)
/* Configure Dedicated Clock Configuration Register 2 */
#define STM32_RCC_DCKCFGR2_USART1SRC RCC_DCKCFGR2_USART1SEL_APB
#define STM32_RCC_DCKCFGR2_USART2SRC RCC_DCKCFGR2_USART2SEL_APB
#define STM32_RCC_DCKCFGR2_UART4SRC RCC_DCKCFGR2_UART4SEL_APB
#define STM32_RCC_DCKCFGR2_UART5SRC RCC_DCKCFGR2_UART5SEL_APB
#define STM32_RCC_DCKCFGR2_USART6SRC RCC_DCKCFGR2_USART6SEL_APB
#define STM32_RCC_DCKCFGR2_UART7SRC RCC_DCKCFGR2_UART7SEL_APB
#define STM32_RCC_DCKCFGR2_UART8SRC RCC_DCKCFGR2_UART8SEL_APB
#define STM32_RCC_DCKCFGR2_I2C1SRC RCC_DCKCFGR2_I2C1SEL_HSI
#define STM32_RCC_DCKCFGR2_I2C2SRC RCC_DCKCFGR2_I2C2SEL_HSI
#define STM32_RCC_DCKCFGR2_I2C3SRC RCC_DCKCFGR2_I2C3SEL_HSI
#define STM32_RCC_DCKCFGR2_I2C4SRC RCC_DCKCFGR2_I2C4SEL_HSI
#define STM32_RCC_DCKCFGR2_LPTIM1SRC RCC_DCKCFGR2_LPTIM1SEL_APB
#define STM32_RCC_DCKCFGR2_CECSRC RCC_DCKCFGR2_CECSEL_HSI
#define STM32_RCC_DCKCFGR2_CK48MSRC RCC_DCKCFGR2_CK48MSEL_PLLSAI
#define STM32_RCC_DCKCFGR2_SDMMCSRC RCC_DCKCFGR2_SDMMCSEL_48MHZ
#define STM32_RCC_DCKCFGR2_SDMMC2SRC RCC_DCKCFGR2_SDMMC2SEL_48MHZ
#define STM32_RCC_DCKCFGR2_DSISRC RCC_DCKCFGR2_DSISEL_48MHZ
/* Several prescalers allow the configuration of the two AHB buses, the
* high-speed APB (APB2) and the low-speed APB (APB1) domains. The maximum
* frequency of the two AHB buses is 216 MHz while the maximum frequency of
* the high-speed APB domains is 108 MHz. The maximum allowed frequency of
* the low-speed APB domain is 54 MHz.
*/
/* AHB clock (HCLK) is SYSCLK (216 MHz) */
#define STM32_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK /* HCLK = SYSCLK / 1 */
#define STM32_HCLK_FREQUENCY STM32_SYSCLK_FREQUENCY
#define STM32_BOARD_HCLK STM32_HCLK_FREQUENCY /* same as above, to satisfy compiler */
/* APB1 clock (PCLK1) is HCLK/4 (54 MHz) */
#define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLKd4 /* PCLK1 = HCLK / 4 */
#define STM32_PCLK1_FREQUENCY (STM32_HCLK_FREQUENCY/4)
/* Timers driven from APB1 will be twice PCLK1 */
#define STM32_APB1_TIM2_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM3_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM4_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM5_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM6_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM7_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM12_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM13_CLKIN (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM14_CLKIN (2*STM32_PCLK1_FREQUENCY)
/* APB2 clock (PCLK2) is HCLK/2 (108MHz) */
#define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLKd2 /* PCLK2 = HCLK / 2 */
#define STM32_PCLK2_FREQUENCY (STM32_HCLK_FREQUENCY/2)
/* Timers driven from APB2 will be twice PCLK2 */
#define STM32_APB2_TIM1_CLKIN (2*STM32_PCLK2_FREQUENCY)
#define STM32_APB2_TIM8_CLKIN (2*STM32_PCLK2_FREQUENCY)
#define STM32_APB2_TIM9_CLKIN (2*STM32_PCLK2_FREQUENCY)
#define STM32_APB2_TIM10_CLKIN (2*STM32_PCLK2_FREQUENCY)
#define STM32_APB2_TIM11_CLKIN (2*STM32_PCLK2_FREQUENCY)
/* FLASH wait states
*
* --------- ---------- -----------
* VDD MAX SYSCLK WAIT STATES
* --------- ---------- -----------
* 1.7-2.1 V 180 MHz 8
* 2.1-2.4 V 216 MHz 9
* 2.4-2.7 V 216 MHz 8
* 2.7-3.6 V 216 MHz 7
* --------- ---------- -----------
*/
#define BOARD_FLASH_WAITSTATES 7
/* LED definitions ******************************************************************/
/* The STM32F746G-DISCO board has numerous LEDs but only one, LD1 located near the
* reset button, that can be controlled by software (LD2 is a power indicator, LD3-6
* indicate USB status, LD7 is controlled by the ST-Link).
*
* LD1 is controlled by PI1 which is also the SPI2_SCK at the Arduino interface.
* One end of LD1 is grounded so a high output on PI1 will illuminate the LED.
*
* If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in any way.
* The following definitions are used to access individual LEDs.
*/
/* LED index values for use with board_userled() */
#define BOARD_LED1 0
#define BOARD_NLEDS 1
#define BOARD_LD1 BOARD_LED1
/* LED bits for use with board_userled_all() */
#define BOARD_LED1_BIT (1 << BOARD_LED1)
/* If CONFIG_ARCH_LEDS is defined, the usage by the board port is defined in
* include/board.h and src/stm32_leds.c. The LEDs are used to encode OS-related
* events as follows:
*
* SYMBOL Meaning LD1
* ------------------- ----------------------- ------
* LED_STARTED NuttX has been started OFF
* LED_HEAPALLOCATE Heap has been allocated OFF
* LED_IRQSENABLED Interrupts enabled OFF
* LED_STACKCREATED Idle stack created ON
* LED_INIRQ In an interrupt N/C
* LED_SIGNAL In a signal handler N/C
* LED_ASSERTION An assertion failed N/C
* LED_PANIC The system has crashed FLASH
*
* Thus is LD1 is statically on, NuttX has successfully booted and is,
* apparently, running normally. If LD1 is flashing at approximately
* 2Hz, then a fatal error has been detected and the system has halted.
*/
#define LED_STARTED 0 /* LD1=OFF */
#define LED_HEAPALLOCATE 0 /* LD1=OFF */
#define LED_IRQSENABLED 0 /* LD1=OFF */
#define LED_STACKCREATED 1 /* LD1=ON */
#define LED_INIRQ 2 /* LD1=no change */
#define LED_SIGNAL 2 /* LD1=no change */
#define LED_ASSERTION 2 /* LD1=no change */
#define LED_PANIC 3 /* LD1=flashing */
/* Button definitions ***************************************************************/
/* The STM32F7 Discovery supports one button: Pushbutton B1, labelled "User", is
* connected to GPIO PI11. A high value will be sensed when the button is depressed.
*/
#define BUTTON_USER 0
#define NUM_BUTTONS 1
#define BUTTON_USER_BIT (1 << BUTTON_USER)
/* Alternate function pin selections ************************************************/
/* USART6:
*
* These configurations assume that you are using a standard Arduio RS-232 shield
* with the serial interface with RX on pin D0 and TX on pin D1:
*
* -------- ---------------
* STM32F7
* ARDUIONO FUNCTION GPIO
* -- ----- --------- -----
* DO RX USART6_RX PC7
* D1 TX USART6_TX PC6
* -- ----- --------- -----
*/
#define GPIO_USART6_RX GPIO_USART6_RX_1
#define GPIO_USART6_TX GPIO_USART6_TX_1
/* The STM32 F7 connects to a SMSC LAN8742A PHY using these pins:
*
* STM32 F7 BOARD LAN8742A
* GPIO SIGNAL PIN NAME
* -------- ------------ -------------
* PG11 RMII_TX_EN TXEN
* PG13 RMII_TXD0 TXD0
* PG14 RMII_TXD1 TXD1
* PC4 RMII_RXD0 RXD0/MODE0
* PC5 RMII_RXD1 RXD1/MODE1
* PG2 RMII_RXER RXER/PHYAD0 -- Not used
* PA7 RMII_CRS_DV CRS_DV/MODE2
* PC1 RMII_MDC MDC
* PA2 RMII_MDIO MDIO
* N/A NRST nRST
* PA1 RMII_REF_CLK nINT/REFCLK0
* N/A OSC_25M XTAL1/CLKIN
*
* The PHY address is either 0 or 1, depending on the state of PG2 on reset.
* PG2 is not controlled but appears to result in a PHY address of 0.
*/
#define GPIO_ETH_RMII_TX_EN GPIO_ETH_RMII_TX_EN_2
#define GPIO_ETH_RMII_TXD0 GPIO_ETH_RMII_TXD0_2
#define GPIO_ETH_RMII_TXD1 GPIO_ETH_RMII_TXD1_2
/************************************************************************************
* Public Data
************************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/************************************************************************************
* Public Function Prototypes
************************************************************************************/
/************************************************************************************
* Name: stm32_boardinitialize
*
* Description:
* All STM32 architectures must provide the following entry point. This entry point
* is called early in the initialization -- after all memory has been configured
* and mapped but before any devices have been initialized.
*
************************************************************************************/
void stm32_boardinitialize(void);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __CONFIG_STM32F746G_DISCO_INCLUDE_BOARD_H */

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/nuttx_user.elf

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############################################################################
# configs/stm32f746g-disco/kernel/Makefile
#
# Copyright (C) 2015 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
-include $(TOPDIR)/Make.defs
# This is the directory for the board-specific header files
BOARD_INCLUDE = $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)include
# The entry point name (if none is provided in the .config file)
CONFIG_USER_ENTRYPOINT ?= user_start
ENTRYPT = $(patsubst "%",%,$(CONFIG_USER_ENTRYPOINT))
# Get the paths to the libraries and the links script path in format that
# is appropriate for the host OS
ifeq ($(WINTOOL),y)
# Windows-native toolchains
USER_LIBPATHS = ${shell for path in $(USERLIBS); do dir=`dirname $(TOPDIR)$(DELIM)$$path`;echo "-L\"`cygpath -w $$dir`\"";done}
USER_LDSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)memory.ld}"
USER_LDSCRIPT += -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)user-space.ld}"
USER_HEXFILE += "${shell cygpath -w $(TOPDIR)$(DELIM)nuttx_user.hex}"
USER_SRECFILE += "${shell cygpath -w $(TOPDIR)$(DELIM)nuttx_user.srec}"
USER_BINFILE += "${shell cygpath -w $(TOPDIR)$(DELIM)nuttx_user.bin}"
else
# Linux/Cygwin-native toolchain
USER_LIBPATHS = $(addprefix -L$(TOPDIR)$(DELIM),$(dir $(USERLIBS)))
USER_LDSCRIPT = -T$(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)memory.ld
USER_LDSCRIPT += -T$(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)user-space.ld
USER_HEXFILE += "$(TOPDIR)$(DELIM)nuttx_user.hex"
USER_SRECFILE += "$(TOPDIR)$(DELIM)nuttx_user.srec"
USER_BINFILE += "$(TOPDIR)$(DELIM)nuttx_user.bin"
endif
USER_LDFLAGS = --undefined=$(ENTRYPT) --entry=$(ENTRYPT) $(USER_LDSCRIPT)
USER_LDLIBS = $(patsubst lib%,-l%,$(basename $(notdir $(USERLIBS))))
USER_LIBGCC = "${shell "$(CC)" $(ARCHCPUFLAGS) -print-libgcc-file-name}"
# Source files
CSRCS = stm32_userspace.c
COBJS = $(CSRCS:.c=$(OBJEXT))
OBJS = $(COBJS)
# Targets:
all: $(TOPDIR)$(DELIM)nuttx_user.elf $(TOPDIR)$(DELIM)User.map
.PHONY: nuttx_user.elf depend clean distclean
$(COBJS): %$(OBJEXT): %.c
$(call COMPILE, $<, $@)
# Create the nuttx_user.elf file containing all of the user-mode code
nuttx_user.elf: $(OBJS)
$(Q) $(LD) -o $@ $(USER_LDFLAGS) $(USER_LIBPATHS) $(OBJS) --start-group $(USER_LDLIBS) --end-group $(USER_LIBGCC)
$(TOPDIR)$(DELIM)nuttx_user.elf: nuttx_user.elf
@echo "LD: nuttx_user.elf"
$(Q) cp -a nuttx_user.elf $(TOPDIR)$(DELIM)nuttx_user.elf
ifeq ($(CONFIG_INTELHEX_BINARY),y)
@echo "CP: nuttx_user.hex"
$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O ihex nuttx_user.elf $(USER_HEXFILE)
endif
ifeq ($(CONFIG_MOTOROLA_SREC),y)
@echo "CP: nuttx_user.srec"
$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O srec nuttx_user.elf $(USER_SRECFILE)
endif
ifeq ($(CONFIG_RAW_BINARY),y)
@echo "CP: nuttx_user.bin"
$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O binary nuttx_user.elf $(USER_BINFILE)
endif
$(TOPDIR)$(DELIM)User.map: nuttx_user.elf
@echo "MK: User.map"
$(Q) $(NM) nuttx_user.elf >$(TOPDIR)$(DELIM)User.map
$(Q) $(CROSSDEV)size nuttx_user.elf
.depend:
depend: .depend
clean:
$(call DELFILE, nuttx_user.elf)
$(call DELFILE, "$(TOPDIR)$(DELIM)nuttx_user.*")
$(call DELFILE, "$(TOPDIR)$(DELIM)User.map")
$(call CLEAN)
distclean: clean

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/****************************************************************************
* configs/stm32f746g-disco/kernel/stm32_userspace.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdlib.h>
#include <nuttx/arch.h>
#include <nuttx/mm/mm.h>
#include <nuttx/wqueue.h>
#include <nuttx/userspace.h>
#if defined(CONFIG_BUILD_PROTECTED) && !defined(__KERNEL__)
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
#ifndef CONFIG_NUTTX_USERSPACE
# error "CONFIG_NUTTX_USERSPACE not defined"
#endif
#if CONFIG_NUTTX_USERSPACE != 0x08020000
# error "CONFIG_NUTTX_USERSPACE must be 0x08020000 to match memory.ld"
#endif
/****************************************************************************
* Public Data
****************************************************************************/
/* These 'addresses' of these values are setup by the linker script. They are
* not actual uint32_t storage locations! They are only used meaningfully in the
* following way:
*
* - The linker script defines, for example, the symbol_sdata.
* - The declaration extern uint32_t _sdata; makes C happy. C will believe
* that the value _sdata is the address of a uint32_t variable _data (it is
* not!).
* - We can recover the linker value then by simply taking the address of
* of _data. like: uint32_t *pdata = &_sdata;
*/
extern uint32_t _stext; /* Start of .text */
extern uint32_t _etext; /* End_1 of .text + .rodata */
extern const uint32_t _eronly; /* End+1 of read only section (.text + .rodata) */
extern uint32_t _sdata; /* Start of .data */
extern uint32_t _edata; /* End+1 of .data */
extern uint32_t _sbss; /* Start of .bss */
extern uint32_t _ebss; /* End+1 of .bss */
/* This is the user space entry point */
int CONFIG_USER_ENTRYPOINT(int argc, char *argv[]);
const struct userspace_s userspace __attribute__ ((section (".userspace"))) =
{
/* General memory map */
.us_entrypoint = (main_t)CONFIG_USER_ENTRYPOINT,
.us_textstart = (uintptr_t)&_stext,
.us_textend = (uintptr_t)&_etext,
.us_datasource = (uintptr_t)&_eronly,
.us_datastart = (uintptr_t)&_sdata,
.us_dataend = (uintptr_t)&_edata,
.us_bssstart = (uintptr_t)&_sbss,
.us_bssend = (uintptr_t)&_ebss,
/* Memory manager heap structure */
.us_heap = &g_mmheap,
/* Task/thread startup routines */
.task_startup = task_startup,
#ifndef CONFIG_DISABLE_PTHREAD
.pthread_startup = pthread_startup,
#endif
/* Signal handler trampoline */
#ifndef CONFIG_DISABLE_SIGNALS
.signal_handler = up_signal_handler,
#endif
/* User-space work queue support (declared in include/nuttx/wqueue.h) */
#ifdef CONFIG_LIB_USRWORK
.work_usrstart = work_usrstart,
#endif
};
/****************************************************************************
* Public Functions
****************************************************************************/
#endif /* CONFIG_BUILD_PROTECTED && !__KERNEL__ */

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# CONFIG_ARCH_FPU is not set
# CONFIG_NSH_DISABLE_IFCONFIG is not set
# CONFIG_NSH_DISABLE_PS is not set
CONFIG_ARCH_BOARD_STM32F746G_DISCO=y
CONFIG_ARCH_BOARD="stm32f746g-disco"
CONFIG_ARCH_BUTTONS=y
CONFIG_ARCH_CHIP_STM32F7=y
CONFIG_ARCH_CHIP_STM32F746NG=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_ARCH="arm"
CONFIG_ARMV7M_DCACHE_WRITETHROUGH=y
CONFIG_ARMV7M_DCACHE=y
CONFIG_ARMV7M_DTCM=y
CONFIG_ARMV7M_ICACHE=y
CONFIG_ARMV7M_TOOLCHAIN_GNU_EABIL=y
CONFIG_BOARD_LOOPSPERMSEC=43103
CONFIG_BUILTIN=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DISABLE_POLL=y
CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y
CONFIG_EXAMPLES_NSH=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_HOST_WINDOWS=y
CONFIG_INTELHEX_BINARY=y
CONFIG_MAX_TASKS=16
CONFIG_MAX_WDOGPARMS=2
CONFIG_MM_REGIONS=3
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_LINELEN=64
CONFIG_NSH_READLINE=y
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_PREALLOC_TIMERS=4
CONFIG_PREALLOC_WDOGS=4
CONFIG_RAM_SIZE=245760
CONFIG_RAM_START=0x20010000
CONFIG_RAW_BINARY=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_WAITPID=y
CONFIG_SDCLONE_DISABLE=y
CONFIG_SPI=y
CONFIG_START_DAY=6
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2011
CONFIG_STM32F7_USART6=y
CONFIG_TASK_NAME_SIZE=0
CONFIG_USART6_SERIAL_CONSOLE=y
CONFIG_USER_ENTRYPOINT="nsh_main"
CONFIG_WDOG_INTRESERVE=0

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############################################################################
# configs/stm32f746g-disco/scripts/Make.defs
#
# Copyright (C) 2015, 2017 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
include ${TOPDIR}/.config
include ${TOPDIR}/tools/Config.mk
include ${TOPDIR}/arch/arm/src/armv7-m/Toolchain.defs
LDSCRIPT = flash.ld
ifeq ($(WINTOOL),y)
# Windows-native toolchains
DIRLINK = $(TOPDIR)/tools/copydir.sh
DIRUNLINK = $(TOPDIR)/tools/unlink.sh
MKDEP = $(TOPDIR)/tools/mkwindeps.sh
ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
else
# Linux/Cygwin-native toolchain
MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)
endif
CC = $(CROSSDEV)gcc
CXX = $(CROSSDEV)g++
CPP = $(CROSSDEV)gcc -E
LD = $(CROSSDEV)ld
AR = $(ARCROSSDEV)ar rcs
NM = $(ARCROSSDEV)nm
OBJCOPY = $(CROSSDEV)objcopy
OBJDUMP = $(CROSSDEV)objdump
ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
ARCHOPTIMIZATION = -g
endif
ifneq ($(CONFIG_DEBUG_NOOPT),y)
ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
endif
ARCHCFLAGS = -fno-builtin
ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
ARCHWARNINGSXX = -Wall -Wshadow -Wundef
ARCHDEFINES =
ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
AFLAGS = $(CFLAGS) -D__ASSEMBLY__
NXFLATLDFLAGS1 = -r -d -warn-common
NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
LDNXFLATFLAGS = -e main -s 2048
ASMEXT = .S
OBJEXT = .o
LIBEXT = .a
EXEEXT =
ifneq ($(CROSSDEV),arm-nuttx-elf-)
LDFLAGS += -nostartfiles -nodefaultlibs
endif
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
LDFLAGS += -g
endif
HOSTCC = gcc
HOSTINCLUDES = -I.
HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -Wundef -g -pipe
HOSTLDFLAGS =

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/****************************************************************************
* configs/stm32f746g-disco/scripts/flash.ld
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Modified 11/4/2013 for STM32F429 support
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* The STM32F746NGH6 has 1024Kb of main FLASH memory. This FLASH memory can
* be accessed from either the AXIM interface at address 0x0800:0000 or from
* the ITCM interface at address 0x0020:0000.
*
* Additional information, including the option bytes, is available at at
* FLASH at address 0x1ff0:0000 (AXIM) or 0x0010:0000 (ITCM).
*
* In the STM32F746NGH6, two different boot spaces can be selected through
* the BOOT pin and the boot base address programmed in the BOOT_ADD0 and
* BOOT_ADD1 option bytes:
*
* 1) BOOT=0: Boot address defined by user option byte BOOT_ADD0[15:0].
* ST programmed value: Flash on ITCM at 0x0020:0000
* 2) BOOT=1: Boot address defined by user option byte BOOT_ADD1[15:0].
* ST programmed value: System bootloader at 0x0010:0000
*
* NuttX does not modify these option byes. On the unmodified STM32F746G
* DISCO board, the BOOT0 pin is at ground so by default, the STM32 will boot
* to address 0x0020:0000 in ITCM FLASH.
*
* The STM32F746NGH6 also has 320Kb of data SRAM (in addition to ITCM SRAM).
* SRAM is split up into three blocks:
*
* 1) 64Kb of DTCM SRM beginning at address 0x2000:0000
* 2) 240Kb of SRAM1 beginning at address 0x2001:0000
* 3) 16Kb of SRAM2 beginning at address 0x2004:c000
*
* When booting from FLASH, FLASH memory is aliased to address 0x0000:0000
* where the code expects to begin execution by jumping to the entry point in
* the 0x0800:0000 address range.
*/
MEMORY
{
itcm (rwx) : ORIGIN = 0x00200000, LENGTH = 1024K
flash (rx) : ORIGIN = 0x08000000, LENGTH = 1024K
dtcm (rwx) : ORIGIN = 0x20000000, LENGTH = 64K
sram1 (rwx) : ORIGIN = 0x20010000, LENGTH = 240K
sram2 (rwx) : ORIGIN = 0x2004c000, LENGTH = 16K
}
OUTPUT_ARCH(arm)
EXTERN(_vectors)
ENTRY(_stext)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > flash
.init_section : {
_sinit = ABSOLUTE(.);
*(.init_array .init_array.*)
_einit = ABSOLUTE(.);
} > flash
.ARM.extab : {
*(.ARM.extab*)
} > flash
__exidx_start = ABSOLUTE(.);
.ARM.exidx : {
*(.ARM.exidx*)
} > flash
__exidx_end = ABSOLUTE(.);
_eronly = ABSOLUTE(.);
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = ABSOLUTE(.);
} > sram1 AT > flash
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
_ebss = ABSOLUTE(.);
} > sram1
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

109
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/****************************************************************************
* configs/stm32f746g-disco/scripts/kernel-space.ld
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* NOTE: This depends on the memory.ld script having been included prior to
* this script.
*/
OUTPUT_ARCH(arm)
ENTRY(_stext)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > kflash
.init_section : {
_sinit = ABSOLUTE(.);
*(.init_array .init_array.*)
_einit = ABSOLUTE(.);
} > kflash
.ARM.extab : {
*(.ARM.extab*)
} > kflash
__exidx_start = ABSOLUTE(.);
.ARM.exidx : {
*(.ARM.exidx*)
} > kflash
__exidx_end = ABSOLUTE(.);
_eronly = ABSOLUTE(.);
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = ABSOLUTE(.);
} > ksram AT > kflash
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
_ebss = ABSOLUTE(.);
} > ksram
/* Stabs debugging sections */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

129
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/****************************************************************************
* configs/stm32f746g-disco/scripts/memory.ld
*
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* The STM32F746NGH6 has 1024Kb of main FLASH memory. This FLASH memory can
* be accessed from either the AXIM interface at address 0x0800:0000 or from
* the ITCM interface at address 0x0020:0000.
*
* Additional information, including the option bytes, is available at at
* FLASH at address 0x1ff0:0000 (AXIM) or 0x0010:0000 (ITCM).
*
* In the STM32F746NGH6, two different boot spaces can be selected through
* the BOOT pin and the boot base address programmed in the BOOT_ADD0 and
* BOOT_ADD1 option bytes:
*
* 1) BOOT=0: Boot address defined by user option byte BOOT_ADD0[15:0].
* ST programmed value: Flash on ITCM at 0x0020:0000
* 2) BOOT=1: Boot address defined by user option byte BOOT_ADD1[15:0].
* ST programmed value: System bootloader at 0x0010:0000
*
* NuttX does not modify these option byes. On the unmodified STM32F746G
* DISCO board, the BOOT0 pin is at ground so by default, the STM32 will boot
* to address 0x0020:0000 in ITCM FLASH.
*
* The STM32F746NGH6 also has 320Kb of data SRAM (in addition to ITCM SRAM).
* SRAM is split up into three blocks:
*
* 1) 64Kb of DTCM SRM beginning at address 0x2000:0000
* 2) 240Kb of SRAM1 beginning at address 0x2001:0000
* 3) 16Kb of SRAM2 beginning at address 0x2004:c000
*
* When booting from FLASH, FLASH memory is aliased to address 0x0000:0000
* where the code expects to begin execution by jumping to the entry point in
* the 0x0800:0000 address range.
*
* For MPU support, the kernel-mode NuttX section is assumed to be 128Kb of
* FLASH and 4Kb of SRAM. That is an excessive amount for the kernel which
* should fit into 64KB and, of course, can be optimized as needed (See
* also configs/stm32f746g-disco/scripts/kernel-space.ld). Allowing the
* additional does permit addition debug instrumentation to be added to the
* kernel space without overflowing the partition.
*
* Alignment of the user space FLASH partition is also a critical factor:
* The user space FLASH partition will be spanned with a single region of
* size 2**n bytes. The alignment of the user-space region must be the same.
* As a consequence, as the user-space increases in size, the alignment
* requirement also increases.
*
* This alignment requirement means that the largest user space FLASH region
* you can have will be 512KB at it would have to be positioned at
* 0x08800000. If you change this address, don't forget to change the
* CONFIG_NUTTX_USERSPACE configuration setting to match and to modify
* the check in kernel/userspace.c.
*
* For the same reasons, the maximum size of the SRAM mapping is limited to
* 4KB. Both of these alignment limitations could be reduced by using
* multiple regions to map the FLASH/SDRAM range or perhaps with some
* clever use of subregions.
*
* A detailed memory map for the 112KB SRAM region is as follows:
*
* 0x20001 0000: Kernel .data region. Typical size: 0.1KB
* ------- ---- Kernel .bss region. Typical size: 1.8KB
* 0x20001 0800: Kernel IDLE thread stack (approximate). Size is
* determined by CONFIG_IDLETHREAD_STACKSIZE and
* adjustments for alignment. Typical is 1KB.
* ------- ---- Padded to 4KB
* 0x20001 1000: User .data region. Size is variable.
* ------- ---- User .bss region Size is variable.
* 0x20001 2000: Beginning of kernel heap. Size determined by
* CONFIG_MM_KERNEL_HEAPSIZE.
* ------- ---- Beginning of user heap. Can vary with other settings.
* 0x20004 c000: End+1 of SRAM1
*/
MEMORY
{
/* ITCM boot address */
itcm (rwx) : ORIGIN = 0x00200000, LENGTH = 1024K
/* 1024KB FLASH */
kflash (rx) : ORIGIN = 0x08000000, LENGTH = 128K
uflash (rx) : ORIGIN = 0x08020000, LENGTH = 128K
xflash (rx) : ORIGIN = 0x08040000, LENGTH = 768K
/* 240KB of contiguous SRAM1 */
ksram (rwx) : ORIGIN = 0x20010000, LENGTH = 4K
usram (rwx) : ORIGIN = 0x20011000, LENGTH = 4K
xsram (rwx) : ORIGIN = 0x20012000, LENGTH = 240K - 8K
/* DTCM SRAM */
dtcm (rwx) : ORIGIN = 0x20000000, LENGTH = 64K
sram2 (rwx) : ORIGIN = 0x2004c000, LENGTH = 16K
}

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/****************************************************************************
* configs/stm32f746g-disco/scripts/user-space.ld
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* NOTE: This depends on the memory.ld script having been included prior to
* this script.
*/
OUTPUT_ARCH(arm)
SECTIONS
{
.userspace : {
*(.userspace)
} > uflash
.text : {
_stext = ABSOLUTE(.);
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > uflash
.init_section : {
_sinit = ABSOLUTE(.);
*(.init_array .init_array.*)
_einit = ABSOLUTE(.);
} > uflash
.ARM.extab : {
*(.ARM.extab*)
} > uflash
__exidx_start = ABSOLUTE(.);
.ARM.exidx : {
*(.ARM.exidx*)
} > uflash
__exidx_end = ABSOLUTE(.);
_eronly = ABSOLUTE(.);
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = ABSOLUTE(.);
} > usram AT > uflash
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
_ebss = ABSOLUTE(.);
} > usram
/* Stabs debugging sections */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

2
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/.depend
/Make.dep

63
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############################################################################
# configs/stm32f746g-disco/src/Makefile
#
# Copyright (C) 2015 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
-include $(TOPDIR)/Make.defs
ASRCS =
CSRCS = stm32_boot.c stm32_spi.c
ifeq ($(CONFIG_ARCH_LEDS),y)
CSRCS += stm32_autoleds.c
else
CSRCS += stm32_userleds.c
endif
ifeq ($(CONFIG_ARCH_BUTTONS),y)
CSRCS += stm32_buttons.c
endif
ifeq ($(CONFIG_LIB_BOARDCTL),y)
CSRCS += stm32_appinitialize.c
endif
ifeq ($(CONFIG_ARCH_FPU),y)
CSRCS += stm32_ostest.c
endif
ifeq ($(CONFIG_SPORADIC_INSTRUMENTATION),y)
CSRCS += stm32_sporadic.c
endif
include $(TOPDIR)/configs/Board.mk

98
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@ -0,0 +1,98 @@
/****************************************************************************
* config/stm32f746g-disco/src/stm32_appinitilaize.c
*
* Copyright (C) 2015-2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include "stm32_ccm.h"
#include "stm32f746g-disco.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_app_initialize
*
* Description:
* Perform application specific initialization. This function is never
* called directly from application code, but only indirectly via the
* (non-standard) boardctl() interface using the command BOARDIOC_INIT.
*
* Input Parameters:
* arg - The boardctl() argument is passed to the board_app_initialize()
* implementation without modification. The argument has no
* meaning to NuttX; the meaning of the argument is a contract
* between the board-specific initalization logic and the
* matching application logic. The value cold be such things as a
* mode enumeration value, a set of DIP switch switch settings, a
* pointer to configuration data read from a file or serial FLASH,
* or whatever you would like to do with it. Every implementation
* should accept zero/NULL as a default configuration.
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned on
* any failure to indicate the nature of the failure.
*
****************************************************************************/
int board_app_initialize(uintptr_t arg)
{
#ifdef CONFIG_FS_PROCFS
int ret;
#ifdef CONFIG_STM32_CCM_PROCFS
/* Register the CCM procfs entry. This must be done before the procfs is
* mounted.
*/
(void)ccm_procfs_register();
#endif
/* Mount the procfs file system */
ret = mount(NULL, SAMV71_PROCFS_MOUNTPOINT, "procfs", 0, NULL);
if (ret < 0)
{
SYSLOG("ERROR: Failed to mount procfs at %s: %d\n",
SAMV71_PROCFS_MOUNTPOINT, ret);
}
#endif
return OK;
}

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/****************************************************************************
* configs/stm32f746g-disco/src/stm32_autoleds.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdbool.h>
#include <debug.h>
#include <nuttx/board.h>
#include "stm32_gpio.h"
#include "stm32f746g-disco.h"
#ifdef CONFIG_ARCH_LEDS
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_autoled_initialize
****************************************************************************/
void board_autoled_initialize(void)
{
/* Configure the LD1 GPIO for output. Initial state is OFF */
stm32_configgpio(GPIO_LD1);
}
/****************************************************************************
* Name: board_autoled_on
****************************************************************************/
void board_autoled_on(int led)
{
bool ledstate = false;
switch (led)
{
case 0: /* LED_STARTED: NuttX has been started STATUS LED=OFF */
/* LED_HEAPALLOCATE: Heap has been allocated STATUS LED=OFF */
/* LED_IRQSENABLED: Interrupts enabled STATUS LED=OFF */
break; /* Leave ledstate == true to turn OFF */
default:
case 2: /* LED_INIRQ: In an interrupt STATUS LED=N/C */
/* LED_SIGNAL: In a signal handler STATUS LED=N/C */
/* LED_ASSERTION: An assertion failed STATUS LED=N/C */
return; /* Return to leave STATUS LED unchanged */
case 3: /* LED_PANIC: The system has crashed STATUS LED=FLASH */
case 1: /* LED_STACKCREATED: Idle stack created STATUS LED=ON */
ledstate = true; /* Set ledstate == false to turn ON */
break;
}
stm32_gpiowrite(GPIO_LD1, ledstate);
}
/****************************************************************************
* Name: board_autoled_off
****************************************************************************/
void board_autoled_off(int led)
{
switch (led)
{
/* These should not happen and are ignored */
default:
case 0: /* LED_STARTED: NuttX has been started STATUS LED=OFF */
/* LED_HEAPALLOCATE: Heap has been allocated STATUS LED=OFF */
/* LED_IRQSENABLED: Interrupts enabled STATUS LED=OFF */
case 1: /* LED_STACKCREATED: Idle stack created STATUS LED=ON */
/* These result in no-change */
case 2: /* LED_INIRQ: In an interrupt STATUS LED=N/C */
/* LED_SIGNAL: In a signal handler STATUS LED=N/C */
/* LED_ASSERTION: An assertion failed STATUS LED=N/C */
return; /* Return to leave STATUS LED unchanged */
/* Turn STATUS LED off set driving the output high */
case 3: /* LED_PANIC: The system has crashed STATUS LED=FLASH */
stm32_gpiowrite(GPIO_LD1, false);
break;
}
}
#endif /* CONFIG_ARCH_LEDS */

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/************************************************************************************
* configs/stm32f746g-disco/src/stm32_boot.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include <nuttx/board.h>
#include <arch/board/board.h>
#include "up_arch.h"
#include "stm32f746g-disco.h"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/************************************************************************************
* Private Functions
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
/************************************************************************************
* Name: stm32_boardinitialize
*
* Description:
* All STM32 architectures must provide the following entry point. This entry point
* is called early in the initialization -- after all memory has been configured
* and mapped but before any devices have been initialized.
*
************************************************************************************/
void stm32_boardinitialize(void)
{
#if defined(CONFIG_STM32F7_SPI1) || defined(CONFIG_STM32F7_SPI2) || \
defined(CONFIG_STM32F7_SPI3) || defined(CONFIG_STM32F7_SPI4) || \
defined(CONFIG_STM32F7_SPI5)
/* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function
* stm32_spidev_initialize() has been brought into the link.
*/
if (stm32_spidev_initialize)
{
stm32_spidev_initialize();
}
#endif
#ifdef CONFIG_SPORADIC_INSTRUMENTATION
/* This configuration has been used for evaluating the NuttX sporadic scheduler.
* The following caqll initializes the sporadic scheduler monitor.
*/
arch_sporadic_initialize();
#endif
#ifdef CONFIG_ARCH_LEDS
/* Configure on-board LEDs if LED support has been selected. */
board_autoled_initialize();
#endif
}
/************************************************************************************
* Name: board_initialize
*
* Description:
* If CONFIG_BOARD_INITIALIZE is selected, then an additional initialization call
* will be performed in the boot-up sequence to a function called
* board_initialize(). board_initialize() will be called immediately after
* up_initialize() is called and just before the initial application is started.
* This additional initialization phase may be used, for example, to initialize
* board-specific device drivers.
*
************************************************************************************/
#ifdef CONFIG_BOARD_INITIALIZE
void board_initialize(void)
{
#if defined(CONFIG_NSH_LIBRARY) && !defined(CONFIG_LIB_BOARDCTL)
/* Perform NSH initialization here instead of from the NSH. This
* alternative NSH initialization is necessary when NSH is ran in user-space
* but the initialization function must run in kernel space.
*/
(void)board_app_initialize(0);
#endif
}
#endif

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/****************************************************************************
* configs/stm32f746g-disco/src/stm32_buttons.c
*
* Copyright (C) 2015, 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <errno.h>
#include <nuttx/irq.h>
#include <nuttx/board.h>
#include "stm32_gpio.h"
#include "stm32f746g-disco.h"
#ifdef CONFIG_ARCH_BUTTONS
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_button_initialize
*
* Description:
* board_button_initialize() must be called to initialize button resources.
* After that, board_buttons() may be called to collect the current state
* of all buttons or board_button_irq() may be called to register button
* interrupt handlers.
*
****************************************************************************/
void board_button_initialize(void)
{
stm32_configgpio(GPIO_BTN_USER);
}
/****************************************************************************
* Name: board_buttons
****************************************************************************/
uint32_t board_buttons(void)
{
return stm32_gpioread(GPIO_BTN_USER) ? 1 : 0;
}
/************************************************************************************
* Button support.
*
* Description:
* board_button_initialize() must be called to initialize button resources. After
* that, board_buttons() may be called to collect the current state of all
* buttons or board_button_irq() may be called to register button interrupt
* handlers.
*
* After board_button_initialize() has been called, board_buttons() may be called to
* collect the state of all buttons. board_buttons() returns an 32-bit bit set
* with each bit associated with a button. See the BUTTON_*_BIT
* definitions in board.h for the meaning of each bit.
*
* board_button_irq() may be called to register an interrupt handler that will
* be called when a button is depressed or released. The ID value is a
* button enumeration value that uniquely identifies a button resource. See the
* BUTTON_* definitions in board.h for the meaning of enumeration
* value.
*
************************************************************************************/
#ifdef CONFIG_ARCH_IRQBUTTONS
int board_button_irq(int id, xcpt_t irqhandler, FAR void *arg)
{
#warning Missing logic
return -ENOSYS;
}
#endif
#endif /* CONFIG_ARCH_BUTTONS */

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/************************************************************************************
* configs/stm32f746g-disco/src/stm32_ostest.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include <debug.h>
#include <nuttx/irq.h>
#include <arch/board/board.h>
#include "up_arch.h"
#include "up_internal.h"
#include "stm32f746g-disco.h"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Configuration ********************************************************************/
#undef HAVE_FPU
#if defined(CONFIG_ARCH_FPU) && !defined(CONFIG_EXAMPLES_OSTEST_FPUTESTDISABLE) && \
defined(CONFIG_EXAMPLES_OSTEST_FPUSIZE) && defined(CONFIG_SCHED_WAITPID) && \
!defined(CONFIG_DISABLE_SIGNALS)
# define HAVE_FPU 1
#endif
#ifdef HAVE_FPU
#if CONFIG_EXAMPLES_OSTEST_FPUSIZE != (4*SW_FPU_REGS)
# error "CONFIG_EXAMPLES_OSTEST_FPUSIZE has the wrong size"
#endif
/************************************************************************************
* Private Data
************************************************************************************/
static uint32_t g_saveregs[XCPTCONTEXT_REGS];
/************************************************************************************
* Private Functions
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
/* Given an array of size CONFIG_EXAMPLES_OSTEST_FPUSIZE, this function will return
* the current FPU registers.
*/
void arch_getfpu(FAR uint32_t *fpusave)
{
irqstate_t flags;
/* Take a snapshot of the thread context right now */
flags = enter_critical_section();
up_saveusercontext(g_saveregs);
/* Return only the floating register values */
memcpy(fpusave, &g_saveregs[REG_S0], (4*SW_FPU_REGS));
leave_critical_section(flags);
}
/* Given two arrays of size CONFIG_EXAMPLES_OSTEST_FPUSIZE this function
* will compare them and return true if they are identical.
*/
bool arch_cmpfpu(FAR const uint32_t *fpusave1, FAR const uint32_t *fpusave2)
{
return memcmp(fpusave1, fpusave2, (4*SW_FPU_REGS)) == 0;
}
#endif /* HAVE_FPU */

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/************************************************************************************
* configs/stm32f746g-disco/src/stm32_spi.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Authors: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/spi/spi.h>
#include <arch/board/board.h>
#include "up_arch.h"
#include "chip.h"
#include "stm32_spi.h"
#include "stm32f746g-disco.h"
#if defined(CONFIG_STM32F7_SPI1) || defined(CONFIG_STM32F7_SPI2) || \
defined(CONFIG_STM32F7_SPI3) || defined(CONFIG_STM32F7_SPI4) || \
defined(CONFIG_STM32F7_SPI5)
/************************************************************************************
* Public Functions
************************************************************************************/
/************************************************************************************
* Name: stm32_spidev_initialize
*
* Description:
* Called to configure SPI chip select GPIO pins for the stm32f746g-disco board.
*
************************************************************************************/
void weak_function stm32_spidev_initialize(void)
{
}
/****************************************************************************
* Name: stm32_spi1/2/3/4/5select and stm32_spi1/2/3/4/5status
*
* Description:
* The external functions, stm32_spi1/2/3select and stm32_spi1/2/3status must be
* provided by board-specific logic. They are implementations of the select
* and status methods of the SPI interface defined by struct spi_ops_s (see
* include/nuttx/spi/spi.h). All other methods (including stm32_spibus_initialize())
* are provided by common STM32 logic. To use this common SPI logic on your
* board:
*
* 1. Provide logic in stm32_boardinitialize() to configure SPI chip select
* pins.
* 2. Provide stm32_spi1/2/3select() and stm32_spi1/2/3status() functions in your
* board-specific logic. These functions will perform chip selection and
* status operations using GPIOs in the way your board is configured.
* 3. Add a calls to stm32_spibus_initialize() in your low level application
* initialization logic
* 4. The handle returned by stm32_spibus_initialize() may then be used to bind the
* SPI driver to higher level logic (e.g., calling
* mmcsd_spislotinitialize(), for example, will bind the SPI driver to
* the SPI MMC/SD driver).
*
****************************************************************************/
#ifdef CONFIG_STM32F7_SPI1
void stm32_spi1select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
{
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
}
uint8_t stm32_spi1status(FAR struct spi_dev_s *dev, uint32_t devid)
{
return 0;
}
#endif
#ifdef CONFIG_STM32F7_SPI2
void stm32_spi2select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
{
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
}
uint8_t stm32_spi2status(FAR struct spi_dev_s *dev, uint32_t devid)
{
return 0;
}
#endif
#ifdef CONFIG_STM32F7_SPI3
void stm32_spi3select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
{
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
}
uint8_t stm32_spi3status(FAR struct spi_dev_s *dev, uint32_t devid)
{
return 0;
}
#endif
#ifdef CONFIG_STM32F7_SPI4
void stm32_spi4select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
{
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
}
uint8_t stm32_spi4status(FAR struct spi_dev_s *dev, uint32_t devid)
{
return 0;
}
#endif
#ifdef CONFIG_STM32F7_SPI5
void stm32_spi5select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
{
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
}
uint8_t stm32_spi5status(FAR struct spi_dev_s *dev, uint32_t devid)
{
return 0;
}
#endif
/****************************************************************************
* Name: stm32_spi1cmddata
*
* Description:
* Set or clear the SH1101A A0 or SD1306 D/C n bit to select data (true)
* or command (false). This function must be provided by platform-specific
* logic. This is an implementation of the cmddata method of the SPI
* interface defined by struct spi_ops_s (see include/nuttx/spi/spi.h).
*
* Input Parameters:
*
* spi - SPI device that controls the bus the device that requires the CMD/
* DATA selection.
* devid - If there are multiple devices on the bus, this selects which one
* to select cmd or data. NOTE: This design restricts, for example,
* one one SPI display per SPI bus.
* cmd - true: select command; false: select data
*
* Returned Value:
* None
*
****************************************************************************/
#ifdef CONFIG_SPI_CMDDATA
#ifdef CONFIG_STM32F7_SPI1
int stm32_spi1cmddata(FAR struct spi_dev_s *dev, uint32_t devid, bool cmd)
{
return -ENODEV;
}
#endif
#ifdef CONFIG_STM32F7_SPI2
int stm32_spi2cmddata(FAR struct spi_dev_s *dev, uint32_t devid, bool cmd)
{
return -ENODEV;
}
#endif
#ifdef CONFIG_STM32F7_SPI3
int stm32_spi3cmddata(FAR struct spi_dev_s *dev, uint32_t devid, bool cmd)
{
return -ENODEV;
}
#endif
#ifdef CONFIG_STM32F7_SPI4
int stm32_spi4cmddata(FAR struct spi_dev_s *dev, uint32_t devid, bool cmd)
{
return -ENODEV;
}
#endif
#ifdef CONFIG_STM32F7_SPI5
int stm32_spi5cmddata(FAR struct spi_dev_s *dev, uint32_t devid, bool cmd)
{
return -ENODEV;
}
#endif
#endif /* CONFIG_SPI_CMDDATA */
#endif /* CONFIG_STM32F7_SPI1 || ... CONFIG_STM32F7_SPI5 */

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/****************************************************************************
* configs/stm32f746g-disco/src/stm32_sporadic.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdbool.h>
#include <nuttx/sched.h>
#include "stm32_gpio.h"
#include "stm32f746g-disco.h"
#ifdef CONFIG_SPORADIC_INSTRUMENTATION
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: arch_sporadic_*
*
* Description:
* This configuration has been used for evaluating the NuttX sporadic
* scheduler. This only makes sense when uses with the sporadic test
* which is a part of apps/examples/ostest. If would make generate
* meaningful output in its current state if there were multiple sporadic
* threads
*
****************************************************************************/
void arch_sporadic_initialize(void)
{
stm32_configgpio(GPIO_SCHED_HIGHPRI);
stm32_configgpio(GPIO_SCHED_RUNNING);
}
void arch_sporadic_start(FAR struct tcb_s *tcb)
{
stm32_gpiowrite(GPIO_SCHED_HIGHPRI, true);
}
void arch_sporadic_lowpriority(FAR struct tcb_s *tcb)
{
stm32_gpiowrite(GPIO_SCHED_HIGHPRI, false);
}
void arch_sporadic_suspend(FAR struct tcb_s *tcb)
{
stm32_gpiowrite(GPIO_SCHED_RUNNING, false);
}
void arch_sporadic_resume(FAR struct tcb_s *tcb)
{
stm32_gpiowrite(GPIO_SCHED_RUNNING, true);
}
#endif /* CONFIG_SPORADIC_INSTRUMENTATION */

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/****************************************************************************
* configs/stm32f746g-disco/src/stm32_userleds.c
*
* Copyright (C) 2011, 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdbool.h>
#include <debug.h>
#include "stm32_gpio.h"
#include "stm32f746g-disco.h"
#ifndef CONFIG_ARCH_LEDS
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_userled_initialize
*
* Description:
* If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board
* LEDs. If CONFIG_ARCH_LEDS is not defined, then the
* board_userled_initialize() is available to initialize the LED from user
* application logic.
*
****************************************************************************/
void board_userled_initialize(void)
{
stm32_configgpio(GPIO_LD1);
}
/****************************************************************************
* Name: board_userled
*
* Description:
* If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board
* LEDs. If CONFIG_ARCH_LEDS is not defined, then the board_userled() is
* available to control the LED from user application logic.
*
****************************************************************************/
void board_userled(int led, bool ledon)
{
if (led == BOARD_STATUS_LED)
{
stm32_gpiowrite(GPIO_LD1, !ledon);
}
}
/****************************************************************************
* Name: board_userled_all
*
* Description:
* If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board
* LEDs. If CONFIG_ARCH_LEDS is not defined, then the board_userled_all() is
* available to control the LED from user application logic. NOTE: since
* there is only a single LED on-board, this is function is not very useful.
*
****************************************************************************/
void board_userled_all(uint8_t ledset)
{
stm32_gpiowrite(GPIO_LD1, (ledset & BOARD_STATUS_LED_BIT) != 0);
}
#endif /* !CONFIG_ARCH_LEDS */

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/****************************************************************************************************
* configs/stm32f746g-disco/src/stm32f746g-disco.h
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Authors: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************************************/
#ifndef __CONFIGS_STM32F746G_DISCO_SRC_STM32F746G_DISCO__H
#define __CONFIGS_STM32F746G_DISCO_SRC_STM32F746G_DISCO__H
/****************************************************************************************************
* Included Files
****************************************************************************************************/
#include <nuttx/config.h>
#include <nuttx/compiler.h>
#include <stdint.h>
/****************************************************************************************************
* Pre-processor Definitions
****************************************************************************************************/
/* procfs File System */
#ifdef CONFIG_FS_PROCFS
# ifdef CONFIG_NSH_PROC_MOUNTPOINT
# define STM32_PROCFS_MOUNTPOINT CONFIG_NSH_PROC_MOUNTPOINT
# else
# define STM32_PROCFS_MOUNTPOINT "/proc"
# endif
#endif
/* STM32F736G Discovery GPIOs ***********************************************************************/
/* The STM32F746G-DISCO board has numerous LEDs but only one, LD1 located near the reset button, that
* can be controlled by software (LD2 is a power indicator, LD3-6 indicate USB status, LD7 is
* controlled by the ST-Link).
*
* LD1 is controlled by PI1 which is also the SPI2_SCK at the Arduino interface. One end of LD1 is
* grounded so a high output on PI1 will illuminate the LED.
*/
#define GPIO_LD1 (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_50MHz | GPIO_OUTPUT_CLEAR | \
GPIO_PORTI | GPIO_PIN1)
/* Pushbutton B1, labelled "User", is connected to GPIO PI11. A high value will be sensed when the
* button is depressed. Note that the EXTI interrupt is configured.
*/
#define GPIO_BTN_USER (GPIO_INPUT | GPIO_FLOAT | GPIO_EXTI | GPIO_PORTI | GPIO_PIN11)
/* Sporadic scheduler instrumentation. This configuration has been used for evaluating the NuttX
* sporadic scheduler. In this evaluation, two GPIO outputs are used. One indicating the priority
* (high or low) of the sporadic thread and one indicating where the thread is running or not.
*
* There is nothing special about the pin selections:
*
* Arduino D2 PG6 - Indicates priority
* Arduino D4 PG7 - Indicates that the thread is running
*/
#define GPIO_SCHED_HIGHPRI (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_50MHz | GPIO_OUTPUT_CLEAR | \
GPIO_PORTG | GPIO_PIN6)
#define GPIO_SCHED_RUNNING (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_50MHz | GPIO_OUTPUT_CLEAR | \
GPIO_PORTG | GPIO_PIN7)
/****************************************************************************************************
* Public data
****************************************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************************************
* Public Functions
****************************************************************************************************/
/****************************************************************************************************
* Name: stm32_spidev_initialize
*
* Description:
* Called to configure SPI chip select GPIO pins for the stm32f746g-disco board.
*
****************************************************************************************************/
void weak_function stm32_spidev_initialize(void);
/****************************************************************************************************
* Name: arch_sporadic_initialize
*
* Description:
* This configuration has been used for evaluating the NuttX sporadic scheduler.
*
****************************************************************************************************/
#ifdef CONFIG_SPORADIC_INSTRUMENTATION
void arch_sporadic_initialize(void);
#endif
#endif /* __ASSEMBLY__ */
#endif /* __CONFIGS_STM32F746G_DISCO_SRC_STM32F746G_DISCO_H */