OLIMEXINO-STM32

Overview

Zephyr applications use the olimexino_stm32 board configuration to run on the OLIMEXINO-STM32 open source hardware. It provides support for the ST STM32F103RB ARM Cortex-M3 CPU and the following devices:

  • NVIC
  • SYSTICK
  • UART
  • GPIO

More information about the board can be found at the OLIMEXINO-STM32 website [1]. The ST STM32F103xB Datasheet [2] contains the processor’s information and the datasheet.

Supported Features

The olimexino_stm32 board configuration supports the following hardware features:

Interface Controller Driver/Component
NVIC on-chip nested vectored interrupt controller
SYSTICK on-chip system clock
UART on-chip serial port
GPIO on-chip gpio

Other hardware features are not supported by the Zephyr kernel. See OLIMEXINO-STM32 website [1] and ST STM32F103xB Datasheet [2] for a complete list of OLIMEXINO-STM32 board hardware features.

Pin Names

LED

  • LED1 (green) = PA5
  • LED2 (yellow) = PA1
  • PWR_LED (red) = power

Push buttons

  • BUT = PC9 / TIM3CH4 / BOOT0
  • RST = NRST

External Connectors

SWD

PIN # Signal Name STM32F103RB Functions
1 VCC N/A
2 TMS / SWDIO JTMS / SWDIO / PA13
3 GND N/A
4 TCK / SWCLK JTCK / SWCLK / PA14
5 GND N/A
6 TDO / SWO JTDO /TIM2_CH2 / PB3 / TRACESWO / SPI1_SCK
7 Cut off N/A
8 TDI JTDI / TIM2_CH1_ETR / PA15 / SPI1_NSS
9 GND N/A
10 RESET NRST

UEXT

PIN # Signal Name STM32F103RB Functions
1 VCC N/A
2 GND N/A
3 D7 (TXD1) PA9 / USART1_TX / TIM1_CH2
4 D8 (RXD1) PA10 / USART1_RX / TIM1_CH3
5 D29 (SCL2) PB10 / I2C2_SCL / USART3_TX / TIM2_CH3
6 D30 (SDA2) PB11 / I2C2_SDA / USART3_RX / TIM2_CH4
7 D12 (MISO1) PA6 / SPI1_MISO / ADC12_IN6 / TIM3_CH1 / TIM1_BKIN
8 D11 (MOSI1) PA7 / SPI1_MOSI / ADC12_IN7 / TIM3_CH2 / TIM1_CH1N
9 D13 (SCK / LED1) PA5 / SPI1_SCK / ADC12_IN5
10 UEXT_#CS N/A

EXT

PIN # Signal Name STM32F103RB Functions
1 D23_EXT PC15 / OSC32_OUT
2 D24 (CANTX) PB9 / TIM4_CH4 / I2C1_SDA / CANTX
3 D25 (MMC_CS) PD2 / TIM3_ETR
4 D26 PC10 / USART3_TX
5 D27 PB0 / ADC12_IN8 / TIM3_CH3 / TIM1_CH2N
6 D28 PB1 / ADC12_IN9 / TIM3_CH4 / TIM1_CH3N
7 D29 (SCL2) PB10 / I2C2_SCL / USART3_TX / TIM2_CH3
8 D30 (SDA2) PB11 / I2C2_SDA / USART3_RX / TIM2_CH4
9 D31 (#SS2) PB12 / SPI2_NSS / I2C2_SMBAI / USART3_CK / TIM1_BKIN
10 D32 (SCK2) PB13 / SPI2_SCK/ USART3_CTS / TIM1_CH1N
11 D33 (MISO2) PB14 / SPI2_MISO / USART3_RTS / TIM1_CH2N
12 D34 (MOSI2) PB15 / SPI2_MOSI / TIM1_CH3N
13 D35 PC6 / TIM3_CH1
14 D36 PC7 / TIM3_CH2
15 D37 PC8 / TIM3_CH3
16 GND N/A

Arduino Headers

CON1 power

PIN # Signal Name STM32F103RB Functions
1 RESET NRST
2 VCC (3V3) N/A
3 VDD (3V3A) N/A
4 GND N/A
5 GND N/A
6 VIN N/A

CON2 analog

PIN # Signal Name STM32F103RB Functions
1 D15 (A0) PC0 / ADC12_IN10
2 D16 (A1) PC1 / ADC12_IN11
3 D17 (A2) PC2 / ADC12_IN12
4 D18 (A3) PC3 / ADC12_IN13
5 D19 (A4) PC4 / ADC12_IN14
6 D20 (A5) PC5 / ADC12_IN15

CON3 digital

PIN # Signal Name STM32F103RB Functions
1 D0 (RXD2) PA3 / USART2_RX / ADC12_IN3 / TIM2_CH4
2 D1 (TXD2) PA2 / USART2_TX / ADC12_IN2 / TIM2_CH3
3 D2 PA0 / WKUP / USART2_CTS / ADC12_IN0 / TIM2_CH1
4 D3 (LED2) PA1 / USART2_RTS / ADC12_IN1 / TIM2_CH2
5 D4 PB5 / I2C1_SMBAI / TIM3_CH2 / SPI1_MOSI
6 D5 PB6 / I2C1_SCL / TIM4_CH1 / USART1_TX
7 D6 PA8 / USART1_CK / TIM1_CH1 / MCO
8 D7 (TXD1) PA9 / USART1_TX / TIM1_CH2

CON4 digital

PIN # Signal Name STM32F103RB Functions
1 D8 (RXD1) PA10 / USART1_RX / TIM1_CH3
2 D9 PB7 / I2C1_SDA / TIM4_CH2 / USART1_RX
3 D10 (#SS1) PA4 / SPI1_NSS / USART2_CK / ADC12_IN4
4 D11 (MOSI1) PA7 / SPI1_MOSI / ADC12_IN7 / TIM3_CH2 / TIM1_CH1N
5 D12 (MISO1) PA6 / SPI1_MISO / ADC12_IN6 / TIM3_CH1 / TIM1_BKIN
6 D13 (SCK1 / LED1) PA5 / SPI1_SCK / ADC12_IN5
7 GND N/A
8 D14 (CANRX) PB8 / TIM4_CH3 / I2C1_SCL / CANRX

System Clock

OLIMEXINO-STM32 has two external oscillators. The frequency of the slow clock is 32.768 kHz. The frequency of the main clock is 8 MHz. The processor can setup HSE to drive the master clock, which can be set as high as 72 MHz.

Jumpers

The Zephyr kernel uses the OLIMEXINO-STM32 default jumper settings.

The default jumper settings for the OLIMEXIMO-STM32E are:

Jumper Name Open Close
LED1_E   x
LED2_E   x
D23_E x  
R-T x  
P10_E   x
Jumper Name D10 D4
D10/D4   x

Flashing Zephyr onto OLIMEXINO-STM32

Flashing the Zephyr kernel onto OLIMEXINO-STM32 requires the stm32flash tool [3].

Building stm32flash command line tool

To build the stm32flash tool, follow the steps below:

  1. Checkout the stm32flash tool’s code from the repository.
$ git clone http://git.code.sf.net/p/stm32flash/code stm32flash
$ cd stm32flash
  1. Build the stm32flash tool.
$ make
  1. The resulting binary is available at stm32flash.

Flashing an Application to OLIMEXINO-STM32

To upload an application to the OLIMEXINO-STM32 board a TTL(3.3V) serial adapter is required. This tutorial uses sample application button $ZEPHYR_BASE/samples/drivers/button.

  1. To build the Zephyr kernel, enter:

    $ cd $ZEPHYR_BASE
$ make -C samples/drivers/button BOARD=olimexino_stm32

  2. Connect the serial cable to the UEXT lines of the UART interface (pin #3=TX and pin #4=RX).

  3. Power the OLIMEXINO-STM32 via the mini USB.

  4. Reset the board while holding the button (BUT).

  5. Flash the application using the stm32flash tool:

    $ cd samples/drivers/button
$ stm32flash -w outdir/zephyr.bin -v -g 0x0 <tty_device>

    Replace <tty_device> with the port where the board OLIMEXINO-STM32 can be found. For example, under Linux, /dev/ttyUSB0.

  6. Run your favorite terminal program to listen for output.

    $ minicom -D /dev/ttyUSB0 -b 115200

    The -b option sets baudrate ignoring the value from config.

  7. Press the Reset button and you should see the output of button application in your terminal.

Note

Make sure your terminal program is closed before flashing the binary image, or it will interfere with the flashing process.