Board: STM32F3discovery

Overview

The STM32F3-discovery is cheap evaluation board designed by ST for pushing the STM32F3 microcontoller to a broad audience. It features an STM32F303VC microcontroller with 48Kb of RAM and 256Kb flash memory running with up to 72MHz. Addionially it provides USB host capabilities, 8 LEDs and sensors for a 9-degree of freedom initial measurement unit (3-axis accelerometer, 3-axis gyro and 3-axis magnetometer).

The board does however not provide any radio capabilities, radio devices have to be connected externally via I2C, SPI, UART or similar.

See this page for a quick getting started guide.

Hardware

MCU

MCU	STM32F303VC
Family	ARM Cortex-M4
Vendor	ST Microelectronics
RAM	48Kb (40Kb RAM + 8Kb CCM RAM)
Flash	256Kb
Frequency	up to 72MHz (using the on-board 8MHz Oszillator of the ST-Link)
FPU	yes
Timers	10 (9x 16-bit, 1x 32-bit [TIM2])
ADCs	4x 12-bit
UARTs	5
SPIs	3
I2Cs	2
Vcc	2.0V - 3.6V
Datasheet	Datasheet
Reference Manual	Reference Manual
Programming Manual	Programming Manual
Board Manual	Board Manual

RIOT static pin mapping

please refer to this document for the pin mapping as implemenented in boards/stm32f3discovery/include/periph_conf.h

User Interface

2 Buttons:

NAME	USER	RESET
Pin	PA0 (IN)	NRST

8 LEDs:

NAME	LD3	LD4	LD5	LD6	LD7	LD8	LD9	LD10
Color	red	blue	orange	green	green	orange	blue	red
Pin	PE9	PE8	PE10	PE15	PE11	PE14	PE12	PE13

E-Compass / Accelerometer

The board has an on-board MEMS-chip that is an integrated accelerometer and e-compass.

Sensor	LSM303DLHC
Type	Accelerometer and magnetometer
Vendor	ST Microelectronics
Datasheet	Datasheet
Errata Sheet	Errata Sheet
Connected to	I2C_0
Pin Config:
Device	I2C1
SCL	PB6 (OUT, I2C1_SCL)
SDA	PB7 (OUT, I2C1_SDA)
DRDY	PE2 (IN)
INT1	PE4 (IN)
INT2	PE5 (IN)

Gyroscope

An 3-axis gyroscope is soldered on the board.

Sensor	L3GD20
Type	Gyroscope
Vendor	ST Microelectronics
Datasheet	Datasheet
Errata Sheet	Errata Sheet
Connected to	SPI_0
Pin Config:
Device	SPI1
SCK	PA5 (OUT, SPI1_SCK)
MISO	PA6 (IN, SPI1_MISO)
MOSI	PA7 (OUT, SPI1_MOSI)
CS	PE3 (OUT)
INT1	PE0 (IN)
INT2/DRDY	PE1 (IN)

Implementation Status

Device	ID	Supported	Comments
MCU	STM23F303VC	partly	Energy saving modes not fully utilized
Low-level driver	GPIO	yes
	PWM	yes
	UART	full
	I2C	no	in progress
	SPI	no	in progress
	USB	no
	Timer	full
	Inpute Capture	no
Accelerometer	LSM303DLHC	no	planned
Magnetometer	LSM303DLHC	no	planned
Gyroscope	L3GD20	no	planned

Flashing the device

The STM32F3discovery board includes an on-board ST-LINK V2 programmer. To program the board you just need to connect a micro-USB cable to the USB port that is centered on the top of the board. You can then either write software into the mircrocontrollers flash memory using one of the supported IDE's (e.g. Atollic Studio) or by using the free commandline tool 'st-flash'.

Installing the 'stlink' tool under Linux/OSX

1. First of all you have to download the st-flash tool from texane's github repository:

# git clone https://github.com/texane/stlink.git stlink

2. Change into the new directory:

# cd stlink

3. Build the st-flash tool

# ./autogen
# ./configure 
# make

For this step you have to have a working build-environment installed, for debian/ubuntu you can do this by installing the build-essential package.

4. Add the st-flash and st-util tools to your bin-path

Flashing a new firmware to the device

1. Connect your discovery board to your pc

2. After you have successfully compiled RIOT and your application, just type

# make flash

This will run the st-flash utility and upload your compiled project to your discovery board.

Flashing the board manually

You can alternatively flash your discovery board manually by using the st-flash utility directly:

$ st-flash [PRJDIR]/bin/stm32f3discovery/[PRJNAME].hex 0x08000000

Supported Toolchains

For using the STM32F3discovery board we strongly recommend the usage of the GNU Tools for ARM Embedded Processors toolchain.