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README
======
This README discusses issues unique to NuttX configurations for the ST
NucleoF410RB board from ST Micro. See
http://www.st.com/en/evaluation-tools/nucleo-f410rb.html
NucleoF410RB:
Microprocessor: 32-bit ARM Cortex M4 at 100MHz STM32F410RB
Memory: 128 KB Flash and 32 KB SRAM
ADC: 1x12-bit, 2.4 MSPS A/D converter: up to 16 channels
DAC: 1x12-bit, 2.4 MSPS A/D converter: up to 1 channels
DMA: 16-stream DMA controllers with FIFOs and burst support
Timers: Up to 11 timers: up to 5 16-bit, 1 32-bit timers, two
watchdog timers, and a SysTick timer
GPIO: Up to 81 I/O ports with interrupt capability
I2C: Up to 3 I2C interfaces
USARTs: Up to 3 USARTs
SPIs: Up to 4 SPIs (2 I2S)
CRC calculation unit
RTC
Peripherals: 1 led, 1 push button
Debug: Serial wire debug and JTAG interfaces
Expansion I/F Ardino and Morpho Headers
Uses a STM32F103 to provide a ST-Link for programming, debug similar to the
OpenOcd FTDI function - USB to JTAG front-end.
See https://os.mbed.com/platforms/ST-Nucleo-F410RB for more
information about this board.
Contents
========
- Nucleo-64 Boards
- Button
- LED
- USARTs and Serial Consoles
- Configurations
Nucleo-64 Boards
================
The Nucleo-F410RB board is member of the Nucleo-64 board family. The
Nucleo-64 is a standard board for use with several STM32 parts in the
LQFP64 package. Variants include
Order code Targeted STM32
------------- --------------
NUCLEO-F030R8 STM32F030R8T6
NUCLEO-F070RB STM32F070RBT6
NUCLEO-F072RB STM32F072RBT6
NUCLEO-F091RC STM32F091RCT6
NUCLEO-F103RB STM32F103RBT6
NUCLEO-F302R8 STM32F302R8T6
NUCLEO-F303RE STM32F303RET6
NUCLEO-F334R8 STM32F334R8T6
NUCLEO-F401RE STM32F401RET6
NUCLEO-F410RB STM32F410RBT6
NUCLEO-F411RE STM32F411RET6
NUCLEO-F446RE STM32F446RET6
NUCLEO-L053R8 STM32L053R8T6
NUCLEO-L073RZ STM32L073RZT6
NUCLEO-L152RE STM32L152RET6
NUCLEO-L452RE STM32L452RET6
NUCLEO-L476RG STM32L476RGT6
Hardware
========
Buttons
-------
B1 USER: the user button is connected to the I/O PC13 (pin 2) of the STM32
microcontroller.
LEDs
----
The Nucleo F410RB provide a single user LED, LD2. LD2
is the green LED connected to Arduino signal D13 corresponding to MCU I/O
PA5 (pin 21) or PB13 (pin 34) depending on the STM32target.
- When the I/O is HIGH value, the LED is on.
- When the I/O is LOW, the LED is off.
These LEDs are 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/sam_leds.c. The LEDs are used to encode OS-related
events as follows when the red LED (PE24) is available:
SYMBOL Meaning LD2
------------------- ----------------------- -----------
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 No change
LED_SIGNAL In a signal handler No change
LED_ASSERTION An assertion failed No change
LED_PANIC The system has crashed Blinking
LED_IDLE MCU is is sleep mode Not used
Thus if LD2, NuttX has successfully booted and is, apparently, running
normally. If LD2 is flashing at approximately 2Hz, then a fatal error
has been detected and the system has halted.
Serial Consoles
===============
USART1
------
Pins and Connectors:
RXD: PA11 CN10 pin 14
PB7 CN7 pin 21
TXD: PA10 CN9 pin 3, CN10 pin 33
PB6 CN5 pin 3, CN10 pin 17
NOTE: You may need to edit the include/board.h to select different USART1
pin selections.
TTL to RS-232 converter connection:
Nucleo CN10 STM32F410RB
----------- ------------
Pin 21 PA9 USART1_RX *Warning you make need to reverse RX/TX on
Pin 33 PA10 USART1_TX some RS-232 converters
Pin 20 GND
Pin 8 U5V
To configure USART1 as the console:
CONFIG_STM32_USART1=y
CONFIG_USART1_SERIALDRIVER=y
CONFIG_USART1_SERIAL_CONSOLE=y
CONFIG_USART1_RXBUFSIZE=256
CONFIG_USART1_TXBUFSIZE=256
CONFIG_USART1_BAUD=115200
CONFIG_USART1_BITS=8
CONFIG_USART1_PARITY=0
CONFIG_USART1_2STOP=0
USART2
-----
Pins and Connectors:
RXD: PA3 CN9 pin 1 (See SB13, 14, 62, 63). CN10 pin 37
PD6
TXD: PA2 CN9 pin 2(See SB13, 14, 62, 63). CN10 pin 35
PD5
UART2 is the default in all of these configurations.
TTL to RS-232 converter connection:
Nucleo CN9 STM32F410RB
----------- ------------
Pin 1 PA3 USART2_RX *Warning you make need to reverse RX/TX on
Pin 2 PA2 USART2_TX some RS-232 converters
Solder Bridges. This configuration requires:
- SB62 and SB63 Closed: PA2 and PA3 on STM32 MCU are connected to D1 and D0
(pin 7 and pin 8) on Arduino connector CN9 and ST Morpho connector CN10
as USART signals. Thus SB13 and SB14 should be OFF.
- SB13 and SB14 Open: PA2 and PA3 on STM32F103C8T6 (ST-LINK MCU) are
disconnected to PA3 and PA2 on STM32 MCU.
To configure USART2 as the console:
CONFIG_STM32_USART2=y
CONFIG_USART2_SERIALDRIVER=y
CONFIG_USART2_SERIAL_CONSOLE=y
CONFIG_USART2_RXBUFSIZE=256
CONFIG_USART2_TXBUFSIZE=256
CONFIG_USART2_BAUD=115200
CONFIG_USART2_BITS=8
CONFIG_USART2_PARITY=0
CONFIG_USART2_2STOP=0
USART6
------
Pins and Connectors:
RXD: PC7 CN5 pin2, CN10 pin 19
PA12 CN10, pin 12
TXD: PC6 CN10, pin 4
PA11 CN10, pin 14
To configure USART6 as the console:
CONFIG_STM32_USART6=y
CONFIG_USART6_SERIALDRIVER=y
CONFIG_USART6_SERIAL_CONSOLE=y
CONFIG_USART6_RXBUFSIZE=256
CONFIG_USART6_TXBUFSIZE=256
CONFIG_USART6_BAUD=115200
CONFIG_USART6_BITS=8
CONFIG_USART6_PARITY=0
CONFIG_USART6_2STOP=0
Virtual COM Port
----------------
Yet another option is to use UART2 and the USB virtual COM port. This
option may be more convenient for long term development, but is painful
to use during board bring-up.
Solder Bridges. This configuration requires:
- SB62 and SB63 Open: PA2 and PA3 on STM32 MCU are disconnected to D1
and D0 (pin 7 and pin 8) on Arduino connector CN9 and ST Morpho
connector CN10.
- SB13 and SB14 Closed: PA2 and PA3 on STM32F103C8T6 (ST-LINK MCU) are
connected to PA3 and PA2 on STM32 MCU to have USART communication
between them. Thus SB61, SB62 and SB63 should be OFF.
Configuring USART2 is the same as given above.
Question: What BAUD should be configure to interface with the Virtual
COM port? 115200 8N1?
Default
-------
As shipped, SB62 and SB63 are open and SB13 and SB14 closed, so the
virtual COM port is enabled.
Configurations
==============
nsh:
---------
Configures the NuttShell (nsh) located at apps/examples/nsh for the
Nucleo-F410RB board. The Configuration enables the serial interfaces
on UART2. Support for builtin applications is enabled, but in the base
configuration no builtin applications are selected (see NOTES below).
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.