709 lines
24 KiB
Plaintext
709 lines
24 KiB
Plaintext
README
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======
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This README discusses issues unique to NuttX configurations for the
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MikroElektronika Mikromedia for STM32F4 development board. This is
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another board support by NuttX that uses the same STM32F407VGT6 MCU
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as does the STM32F4-Discovery board. This board, however, has very
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different on-board peripherals than does the STM32F4-Discovery:
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- TFT display with touch panel,
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- VS1053 stereo audio codec with headphone jack,
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- SD card slot,
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- Serial FLASH memory,
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- USB OTG FS with micro-AB connector, and
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- Battery connect and batter charger circuit.
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See the http://www.mikroe.com/mikromedia/stm32-m4/ for more information
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about this board.
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Contents
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========
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- LEDs
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- PWM
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- UARTs
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- Timer Inputs/Outputs
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- FPU
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- FSMC SRAM
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- SSD1289
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- Mikroe-STM32F4-specific Configuration Options
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- Configurations
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LEDs
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====
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The Mikroe-STM32F4 board has no user accessible LEDs onboard, only a power
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and "charging" LED. All visual user output must be performed through the TFT
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display.
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External LEDs could be added via the expansion headers on the side of the
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board, but as this would be a custom configuration, LEDs are not supported
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in this port.
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PWM
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===
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The Mikroe-STM32F4 has no real on-board PWM devices, but it does have PWM
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pins routed to the expansion I/O headers on the side of the board.
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UARTs
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=====
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The Mikroe-STM32F4 board has no onboard RS-232 line driver, however the
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expansion I/O header provides access to USART2 on pins PD5/PD6. The port
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includes support for USART2 configured as /dev/ttyS0.
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UART/USART PINS
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---------------
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USART2
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RX PD6
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TX PD5
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Default USART/UART Configuration
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--------------------------------
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USART2 is enabled in all configurations (see */defconfig). RX and TX are
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configured on pins PD6 and PD5, respectively (see include/board.h).
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Timer Inputs/Outputs
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====================
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TIM1
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CH1 PA8, PE9
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CH2 PA9*, PE11
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CH3 PA10*, PE13
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CH4 PA11*, PE14
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TIM2
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CH1 PA0*, PA15, PA5*
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CH2 PA1, PB3*
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CH3 PA2, PB10*
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CH4 PA3, PB11
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TIM3
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CH1 PA6*, PB4, PC6
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CH2 PA7*, PB5, PC7*
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CH3 PB0, PC8
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CH4 PB1, PC9
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TIM4
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CH1 PB6*, PD12*
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CH2 PB7, PD13*
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CH3 PB8, PD14*
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CH4 PB9*, PD15*
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TIM5
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CH1 PA0*, PH10**
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CH2 PA1, PH11**
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CH3 PA2, PH12**
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CH4 PA3, PI0
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TIM8
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CH1 PC6, PI5
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CH2 PC7*, PI6
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CH3 PC8, PI7
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CH4 PC9, PI2
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TIM9
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CH1 PA2, PE5
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CH2 PA3, PE6
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TIM10
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CH1 PB8, PF6
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TIM11
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CH1 PB9*, PF7
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TIM12
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CH1 PH6**, PB14
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CH2 PC15, PH9**
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TIM13
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CH1 PA6*, PF8
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TIM14
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CH1 PA7*, PF9
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* Indicates pins that have other on-board functions and should be used only
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with care (See table 5 in the Mikroe-STM32F4 User Guide). The rest are
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free I/O pins.
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** Port H pins are not supported by the MCU
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FPU
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===
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FPU Configuration Options
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-------------------------
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There are two version of the FPU support built into the STM32 port.
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1. Non-Lazy Floating Point Register Save
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In this configuration floating point register save and restore is
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implemented on interrupt entry and return, respectively. In this
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case, you may use floating point operations for interrupt handling
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logic if necessary. This FPU behavior logic is enabled by default
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with:
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CONFIG_ARCH_FPU=y
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2. Lazy Floating Point Register Save.
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An alternative mplementation only saves and restores FPU registers only
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on context switches. This means: (1) floating point registers are not
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stored on each context switch and, hence, possibly better interrupt
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performance. But, (2) since floating point registers are not saved,
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you cannot use floating point operations within interrupt handlers.
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This logic can be enabled by simply adding the following to your .config
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file:
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CONFIG_ARCH_FPU=y
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CONFIG_ARMV7M_LAZYFPU=y
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MIO283QT-2/MIO283QT-9A
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======================
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The original Mikroe-SMT32F4 board as an on-board MIO283QT-2 TFT LCD that can
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be configured and used. This is a 320x240 resolution display with color
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capability to 262K colors, though the mio283qt-2 driver in NuttX only
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supports 16-bit color depth, or 65K colors. Changes to both the
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mio283qt-2 driver and the driver interface layer would need to be made
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to support 24 BPP mode.
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UPDATE: New boards now support a MIO283QT-9A TFT LCD that is not compatible
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with the MIO283QT-2. It uses a different LCD controller. The default in
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all of these configurations is the MIO283QT-2. But MIO283QT-9A is also
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supported and you can switch from the MIO283QT-2 to the MIO283QT-9A by simply
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modifying the NuttX configuration
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CFLAGS
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------
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Only recent GCC toolchains have built-in support for the Cortex-M4 FPU. You will see
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the following lines in each Make.defs file:
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ifeq ($(CONFIG_ARCH_FPU),y)
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ARCHCPUFLAGS = -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfpu=fpv4-sp-d16 -mfloat-abi=hard
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else
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ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
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endif
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Configuration Changes
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---------------------
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Below are all of the configuration changes that I had to make to configs/stm3240g-eval/nsh2
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in order to successfully build NuttX using the Atollic toolchain WITH FPU support:
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-CONFIG_ARCH_FPU=n : Enable FPU support
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+CONFIG_ARCH_FPU=y
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-CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW=y : Disable the CodeSourcery toolchain
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+CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW=n
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-CONFIG_ARMV7M_TOOLCHAIN_ATOLLIC=n : Enable the Atollic toolchain
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+CONFIG_ARMV7M_TOOLCHAIN_ATOLLIC=y :
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-CONFIG_INTELHEX_BINARY=y : Suppress generation FLASH download formats
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+CONFIG_INTELHEX_BINARY=n : (Only necessary with the "Lite" version)
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-CONFIG_HAVE_CXX=y : Suppress generation of C++ code
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+CONFIG_HAVE_CXX=n : (Only necessary with the "Lite" version)
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See the section above on Toolchains, NOTE 2, for explanations for some of
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the configuration settings. Some of the usual settings are just not supported
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by the "Lite" version of the Atollic toolchain.
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Mikroe-STM32F4-specific Configuration Options
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===============================================
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CONFIG_ARCH - Identifies the arch/ subdirectory. This should
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be set to:
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CONFIG_ARCH=arm
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CONFIG_ARCH_family - For use in C code:
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CONFIG_ARCH_ARM=y
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CONFIG_ARCH_architecture - For use in C code:
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CONFIG_ARCH_CORTEXM4=y
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CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
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CONFIG_ARCH_CHIP=stm32
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CONFIG_ARCH_CHIP_name - For use in C code to identify the exact
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chip:
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CONFIG_ARCH_CHIP_STM32F407VG=y
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CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG - Enables special STM32 clock
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configuration features.
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CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG=n
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CONFIG_ARCH_BOARD - Identifies the configs subdirectory and
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hence, the board that supports the particular chip or SoC.
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CONFIG_ARCH_BOARD=Mikroe-STM32F4 (for the Mikroe-STM32F4 development board)
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CONFIG_ARCH_BOARD_name - For use in C code
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CONFIG_ARCH_BOARD_STM32F4_DISCOVERY=y
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CONFIG_ARCH_LOOPSPERMSEC - Must be calibrated for correct operation
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of delay loops
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CONFIG_ENDIAN_BIG - define if big endian (default is little
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endian)
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CONFIG_RAM_SIZE - Describes the installed DRAM (SRAM in this case):
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CONFIG_RAM_SIZE=0x00010000 (64Kb)
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CONFIG_RAM_START - The start address of installed DRAM
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CONFIG_RAM_START=0x20000000
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CONFIG_STM32_CCMEXCLUDE - Exclude CCM SRAM from the HEAP
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In addition to internal SRAM, SRAM may also be available through the FSMC.
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In order to use FSMC SRAM, the following additional things need to be
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present in the NuttX configuration file:
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CONFIG_HEAP2_BASE - The base address of the SRAM in the FSMC address space (hex)
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CONFIG_HEAP2_SIZE - The size of the SRAM in the FSMC address space (decimal)
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CONFIG_ARCH_FPU - The Mikroe-STM32F4 supports a floating point unit (FPU)
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CONFIG_ARCH_FPU=y
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CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
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stack. If defined, this symbol is the size of the interrupt
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stack in bytes. If not defined, the user task stacks will be
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used during interrupt handling.
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CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
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CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to board architecture.
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CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
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cause a 100 second delay during boot-up. This 100 second delay
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serves no purpose other than it allows you to calibratre
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CONFIG_ARCH_LOOPSPERMSEC. You simply use a stop watch to measure
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the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
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the delay actually is 100 seconds.
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Individual subsystems can be enabled:
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AHB1
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----
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CONFIG_STM32_CRC
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CONFIG_STM32_BKPSRAM
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CONFIG_STM32_CCMDATARAM
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CONFIG_STM32_DMA1
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CONFIG_STM32_DMA2
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CONFIG_STM32_ETHMAC
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CONFIG_STM32_OTGHS
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AHB2
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----
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CONFIG_STM32_DCMI
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CONFIG_STM32_CRYP
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CONFIG_STM32_HASH
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CONFIG_STM32_RNG
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CONFIG_STM32_OTGFS
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AHB3
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----
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CONFIG_STM32_FSMC
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APB1
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----
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CONFIG_STM32_TIM2
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CONFIG_STM32_TIM3
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CONFIG_STM32_TIM4
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CONFIG_STM32_TIM5
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CONFIG_STM32_TIM6
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CONFIG_STM32_TIM7
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CONFIG_STM32_TIM12
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CONFIG_STM32_TIM13
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CONFIG_STM32_TIM14
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CONFIG_STM32_WWDG
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CONFIG_STM32_IWDG
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CONFIG_STM32_SPI2
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CONFIG_STM32_SPI3
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CONFIG_STM32_USART2
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CONFIG_STM32_USART3
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CONFIG_STM32_UART4
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CONFIG_STM32_UART5
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CONFIG_STM32_I2C1
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CONFIG_STM32_I2C2
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CONFIG_STM32_I2C3
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CONFIG_STM32_CAN1
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CONFIG_STM32_CAN2
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CONFIG_STM32_DAC1
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CONFIG_STM32_DAC2
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CONFIG_STM32_PWR -- Required for RTC
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APB2
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----
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CONFIG_STM32_TIM1
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CONFIG_STM32_TIM8
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CONFIG_STM32_USART1
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CONFIG_STM32_USART6
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CONFIG_STM32_ADC1
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CONFIG_STM32_ADC2
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CONFIG_STM32_ADC3
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CONFIG_STM32_SDIO
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CONFIG_STM32_SPI1
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CONFIG_STM32_SYSCFG
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CONFIG_STM32_TIM9
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CONFIG_STM32_TIM10
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CONFIG_STM32_TIM11
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Timer devices may be used for different purposes. One special purpose is
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to generate modulated outputs for such things as motor control. If CONFIG_STM32_TIMn
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is defined (as above) then the following may also be defined to indicate that
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the timer is intended to be used for pulsed output modulation, ADC conversion,
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or DAC conversion. Note that ADC/DAC require two definition: Not only do you have
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to assign the timer (n) for used by the ADC or DAC, but then you also have to
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configure which ADC or DAC (m) it is assigned to.
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CONFIG_STM32_TIMn_PWM Reserve timer n for use by PWM, n=1,..,14
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CONFIG_STM32_TIMn_ADC Reserve timer n for use by ADC, n=1,..,14
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CONFIG_STM32_TIMn_ADCm Reserve timer n to trigger ADCm, n=1,..,14, m=1,..,3
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CONFIG_STM32_TIMn_DAC Reserve timer n for use by DAC, n=1,..,14
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CONFIG_STM32_TIMn_DACm Reserve timer n to trigger DACm, n=1,..,14, m=1,..,2
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For each timer that is enabled for PWM usage, we need the following additional
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configuration settings:
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CONFIG_STM32_TIMx_CHANNEL - Specifies the timer output channel {1,..,4}
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NOTE: The STM32 timers are each capable of generating different signals on
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each of the four channels with different duty cycles. That capability is
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not supported by this driver: Only one output channel per timer.
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JTAG Enable settings (by default only SW-DP is enabled):
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CONFIG_STM32_JTAG_FULL_ENABLE - Enables full SWJ (JTAG-DP + SW-DP)
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CONFIG_STM32_JTAG_NOJNTRST_ENABLE - Enables full SWJ (JTAG-DP + SW-DP)
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but without JNTRST.
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CONFIG_STM32_JTAG_SW_ENABLE - Set JTAG-DP disabled and SW-DP enabled
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Mikroe-STM32F4 specific device driver settings
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CONFIG_U[S]ARTn_SERIAL_CONSOLE - selects the USARTn (n=1,2,3) or UART
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m (m=4,5) for the console and ttys0 (default is the USART1).
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CONFIG_U[S]ARTn_RXBUFSIZE - Characters are buffered as received.
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This specific the size of the receive buffer
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CONFIG_U[S]ARTn_TXBUFSIZE - Characters are buffered before
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being sent. This specific the size of the transmit buffer
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CONFIG_U[S]ARTn_BAUD - The configure BAUD of the UART. Must be
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CONFIG_U[S]ARTn_BITS - The number of bits. Must be either 7 or 8.
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CONFIG_U[S]ARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
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CONFIG_U[S]ARTn_2STOP - Two stop bits
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Mikroe-STM32F4 CAN Configuration
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CONFIG_CAN - Enables CAN support (one or both of CONFIG_STM32_CAN1 or
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CONFIG_STM32_CAN2 must also be defined)
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CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID. Default
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Standard 11-bit IDs.
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CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
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Default: 8
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CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.
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Default: 4
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CONFIG_CAN_LOOPBACK - A CAN driver may or may not support a loopback
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mode for testing. The STM32 CAN driver does support loopback mode.
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CONFIG_STM32_CAN1_BAUD - CAN1 BAUD rate. Required if CONFIG_STM32_CAN1
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is defined.
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CONFIG_STM32_CAN2_BAUD - CAN1 BAUD rate. Required if CONFIG_STM32_CAN2
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is defined.
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CONFIG_STM32_CAN_TSEG1 - The number of CAN time quanta in segment 1.
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Default: 6
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CONFIG_STM32_CAN_TSEG2 - the number of CAN time quanta in segment 2.
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Default: 7
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CONFIG_STM32_CAN_REGDEBUG - If CONFIG_DEBUG_FEATURES is set, this will generate an
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dump of all CAN registers.
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Mikroe-STM32F4 SPI Configuration
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CONFIG_STM32_SPI_INTERRUPTS - Select to enable interrupt driven SPI
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support. Non-interrupt-driven, poll-waiting is recommended if the
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interrupt rate would be to high in the interrupt driven case.
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CONFIG_STM32_SPI_DMA - Use DMA to improve SPI transfer performance.
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Cannot be used with CONFIG_STM32_SPI_INTERRUPT.
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Mikroe-STM32F4 DMA Configuration
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CONFIG_SDIO_DMA - Support DMA data transfers. Requires CONFIG_STM32_SDIO
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and CONFIG_STM32_DMA2.
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CONFIG_STM32_SDIO_PRI - Select SDIO interrupt prority. Default: 128
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CONFIG_STM32_SDIO_DMAPRIO - Select SDIO DMA interrupt priority.
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Default: Medium
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CONFIG_STM32_SDIO_WIDTH_D1_ONLY - Select 1-bit transfer mode. Default:
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4-bit transfer mode.
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STM32 USB OTG FS Host Driver Support
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Pre-requisites
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CONFIG_USBDEV - Enable USB device support
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CONFIG_USBHOST - Enable USB host support
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CONFIG_STM32_OTGFS - Enable the STM32 USB OTG FS block
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CONFIG_STM32_SYSCFG - Needed
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CONFIG_SCHED_WORKQUEUE - Worker thread support is required
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Options:
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CONFIG_STM32_OTGFS_RXFIFO_SIZE - Size of the RX FIFO in 32-bit words.
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Default 128 (512 bytes)
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CONFIG_STM32_OTGFS_NPTXFIFO_SIZE - Size of the non-periodic Tx FIFO
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in 32-bit words. Default 96 (384 bytes)
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CONFIG_STM32_OTGFS_PTXFIFO_SIZE - Size of the periodic Tx FIFO in 32-bit
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words. Default 96 (384 bytes)
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CONFIG_STM32_OTGFS_DESCSIZE - Maximum size of a descriptor. Default: 128
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CONFIG_STM32_OTGFS_SOFINTR - Enable SOF interrupts. Why would you ever
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want to do that?
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CONFIG_STM32_USBHOST_REGDEBUG - Enable very low-level register access
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debug. Depends on CONFIG_DEBUG_FEATURES.
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CONFIG_STM32_USBHOST_PKTDUMP - Dump all incoming and outgoing USB
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packets. Depends on CONFIG_DEBUG_FEATURES.
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Configurations
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==============
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Each Mikroe-STM32F4 configuration is maintained in a sub-directory and
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can be selected as follow:
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tools/configure.sh mikroe-stm32f4/<subdir>
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If this is a Windows native build, then configure.bat should be used
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instead of configure.sh:
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configure.bat Mikroe-STM32F4\<subdir>
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Where <subdir> is one of the following:
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fulldemo
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--------
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This is an example that includes an NSH shell over USB that also
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enables all features of the Mikroe-STM32F4 board including the LCD,
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on-board 1M Flash with SMART filesystem, Aux RS-232 serial port on the
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expansion header, etc. A couple of the NX graphics commands are made
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available via the NSH prompt for performing LCD demonstrations, and the
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nximage example is used as a splash-screen at startup.
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kostest:
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-------
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NOTE: This configuration compiles, but has not been fully tested
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on the hardware yet.
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This configuration directory, performs a simple OS test using
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apps/examples/ostest with NuttX build as a kernel-mode monolithic
|
|
module and the user applications are built separately. Is
|
|
is recommened to use a special make command; not just 'make' but
|
|
make with the following two arguments:
|
|
|
|
make pass1 pass2
|
|
|
|
In the normal case (just 'make'), make will attempt to build both user-
|
|
and kernel-mode blobs more or less interleaved. This actual works!
|
|
However, for me it is very confusing so I prefer the above make command:
|
|
Make the user-space binaries first (pass1), then make the kernel-space
|
|
binaries (pass2)
|
|
|
|
NOTES:
|
|
|
|
1. This configuration uses 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. This is the default platform/toolchain in the configuration:
|
|
|
|
CONFIG_HOST_WINDOWS=y : Windows
|
|
CONFIG_WINDOWS_CYGWIN=y : Cygwin environment on Windows
|
|
CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery under Windows
|
|
|
|
This is easily changed by modifying the configuration.
|
|
|
|
3. At the end of the build, there will be several files in the top-level
|
|
NuttX build directory:
|
|
|
|
PASS1:
|
|
nuttx_user.elf - The pass1 user-space ELF file
|
|
nuttx_user.hex - The pass1 Intel HEX format file (selected in defconfig)
|
|
User.map - Symbols in the user-space ELF file
|
|
|
|
PASS2:
|
|
nuttx - The pass2 kernel-space ELF file
|
|
nuttx.hex - The pass2 Intel HEX file (selected in defconfig)
|
|
System.map - Symbols in the kernel-space ELF file
|
|
|
|
4. Combining .hex files. If you plan to use the STM32 ST-Link Utility to
|
|
load the .hex files into FLASH, then you need to combine the two hex
|
|
files into a single .hex file. Here is how you can do that.
|
|
|
|
a. The 'tail' of the nuttx.hex file should look something like this
|
|
(with my comments added):
|
|
|
|
$ tail nuttx.hex
|
|
# 00, data records
|
|
...
|
|
:10 9DC0 00 01000000000800006400020100001F0004
|
|
:10 9DD0 00 3B005A0078009700B500D400F300110151
|
|
:08 9DE0 00 30014E016D0100008D
|
|
# 05, Start Linear Address Record
|
|
:04 0000 05 0800 0419 D2
|
|
# 01, End Of File record
|
|
:00 0000 01 FF
|
|
|
|
Use an editor such as vi to remove the 05 and 01 records.
|
|
|
|
b. The 'head' of the nuttx_user.hex file should look something like
|
|
this (again with my comments added):
|
|
|
|
$ head nuttx_user.hex
|
|
# 04, Extended Linear Address Record
|
|
:02 0000 04 0801 F1
|
|
# 00, data records
|
|
:10 8000 00 BD89 01084C800108C8110208D01102087E
|
|
:10 8010 00 0010 00201C1000201C1000203C16002026
|
|
:10 8020 00 4D80 01085D80010869800108ED83010829
|
|
...
|
|
|
|
Nothing needs to be done here. The nuttx_user.hex file should
|
|
be fine.
|
|
|
|
c. Combine the edited nuttx.hex and un-edited nuttx_user.hex
|
|
file to produce a single combined hex file:
|
|
|
|
$ cat nuttx.hex nuttx_user.hex >combined.hex
|
|
|
|
Then use the combined.hex file with the STM32 ST-Link tool. If
|
|
you do this a lot, you will probably want to invest a little time
|
|
to develop a tool to automate these steps.
|
|
|
|
|
|
nsh
|
|
---
|
|
This is an NSH example that uses USART2 as the console. Note that
|
|
the Mikroe-STM32F4 board doesn't actually have onboard line drivers
|
|
or a connector for USART2, but it does route the USART2 signals to
|
|
the expansion header. To use this demo, you would need to connect
|
|
an external 3.3V RS-232 line driver to the USART's I/O lines on the
|
|
expansion header.
|
|
|
|
NOTE: This demo doesn't quite work yet. I can get output to the
|
|
USART, but so far, I have not gotten nsh to actually come up.
|
|
|
|
|
|
nx
|
|
--
|
|
An example using the NuttX graphics system (NX). This example
|
|
focuses on general window controls, movement, mouse and keyboard
|
|
input.
|
|
|
|
CONFIG_LCD_LANDSCAPE=y : 320x240 landscape orientation
|
|
CONFIG_LCD_MIO283QT2=y : MIO283QT-2 is the default
|
|
|
|
You can the newer MIO283QT-9A by enabling it in the configuration.
|
|
|
|
CONFIG_LCD_MIO283QT2=n : Disable the MIO283QT-2
|
|
CONFIG_LCD_MIO283QT9A=y : Enable the MIO283QT-9A
|
|
|
|
nxlines:
|
|
------
|
|
An example using the NuttX graphics system (NX). This example focuses on
|
|
placing lines on the background in various orientations using the
|
|
on-board TFT LCD.
|
|
|
|
CONFIG_LCD_LANDSCAPE=y : 320x240 landscape orientation
|
|
CONFIG_LCD_MIO283QT2=y : MIO283QT-2 is the default
|
|
|
|
You can the newer MIO283QT-9A by enabling it in the configuration.
|
|
|
|
CONFIG_LCD_MIO283QT2=n : Disable the MIO283QT-2
|
|
CONFIG_LCD_MIO283QT9A=y : Enable the MIO283QT-9A
|
|
|
|
nxtext:
|
|
------
|
|
Another example using the NuttX graphics system (NX). This
|
|
example focuses on placing text on the background while pop-up
|
|
windows occur. Text should continue to update normally with
|
|
or without the popup windows present.
|
|
|
|
usbnsh:
|
|
-------
|
|
|
|
This is another NSH example. If differs from other 'nsh' configurations
|
|
in that this configurations uses a USB serial device for console I/O.
|
|
Such a configuration is useful on the stm32f4discovery which has no
|
|
builtin RS-232 drivers.
|
|
|
|
NOTES:
|
|
|
|
1. This configuration uses 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, this configuration uses the CodeSourcery toolchain
|
|
for Windows and builds under Cygwin (or probably MSYS). That
|
|
can easily be reconfigured, of course.
|
|
|
|
CONFIG_HOST_WINDOWS=y : Builds under Windows
|
|
CONFIG_WINDOWS_CYGWIN=y : Using Cygwin
|
|
CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
|
|
|
|
3. This configuration does have UART2 output enabled and set up as
|
|
the system logging device:
|
|
|
|
CONFIG_SYSLOG_CHAR=y : Use a character device for system logging
|
|
CONFIG_SYSLOG_DEVPATH="/dev/ttyS0" : UART2 will be /dev/ttyS0
|
|
|
|
However, there is nothing to generate SYLOG output in the default
|
|
configuration so nothing should appear on UART2 unless you enable
|
|
some debug output or enable the USB monitor.
|
|
|
|
4. Enabling USB monitor SYSLOG output. If tracing is enabled, the USB
|
|
device will save encoded trace output in in-memory buffer; if the
|
|
USB monitor is enabled, that trace buffer will be periodically
|
|
emptied and dumped to the system loggin device (UART2 in this
|
|
configuraion):
|
|
|
|
CONFIG_USBDEV_TRACE=y : Enable USB trace feature
|
|
CONFIG_USBDEV_TRACE_NRECORDS=128 : Buffer 128 records in memory
|
|
CONFIG_NSH_USBDEV_TRACE=n : No builtin tracing from NSH
|
|
CONFIG_NSH_ARCHINIT=y : Automatically start the USB monitor
|
|
CONFIG_USBMONITOR=y : Enable the USB monitor daemon
|
|
CONFIG_USBMONITOR_STACKSIZE=2048 : USB monitor daemon stack size
|
|
CONFIG_USBMONITOR_PRIORITY=50 : USB monitor daemon priority
|
|
CONFIG_USBMONITOR_INTERVAL=2 : Dump trace data every 2 seconds
|
|
|
|
CONFIG_USBMONITOR_TRACEINIT=y : Enable TRACE output
|
|
CONFIG_USBMONITOR_TRACECLASS=y
|
|
CONFIG_USBMONITOR_TRACETRANSFERS=y
|
|
CONFIG_USBMONITOR_TRACECONTROLLER=y
|
|
CONFIG_USBMONITOR_TRACEINTERRUPTS=y
|
|
|
|
5. By default, this project assumes that you are *NOT* using the DFU
|
|
bootloader.
|
|
|
|
Using the Prolifics PL2303 Emulation
|
|
------------------------------------
|
|
You could also use the non-standard PL2303 serial device instead of
|
|
the standard CDC/ACM serial device by changing:
|
|
|
|
CONFIG_CDCACM=y : Disable the CDC/ACM serial device class
|
|
CONFIG_CDCACM_CONSOLE=y : The CDC/ACM serial device is NOT the console
|
|
CONFIG_PL2303=y : The Prolifics PL2303 emulation is enabled
|
|
CONFIG_PL2303_CONSOLE=y : The PL2303 serial device is the console
|
|
|