This is the documentation for the latest (main) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

OLIMEXINO-STM32

Overview

The OLIMEXINO-STM32 board is based on the STMicroelectronics STM32F103RB ARM Cortex-M3 CPU.

OLIMEXINO-STM32

OLIMEXINO-STM32

More information about the board can be found at the OLIMEXINO-STM32 website and OLIMEXINO-STM32 user manual. The ST STM32F103xB Datasheet 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

I2C

on-chip

i2c

SPI

on-chip

spi

USB

on-chip

USB device

WATCHDOG

on-chip

independent watchdog

CAN

on-chip

Controller Area Network

Other hardware features are not supported by the Zephyr kernel.

Pin Mapping

OLIMEXINO-STM32 connectors

OLIMEXINO-STM32 connectors

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

CAN

PIN #

Signal Name

1

GND

2

CAN L

3

CAN H

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.

Serial Port

OLIMEXINO-STM32 board has up to 3 U(S)ARTs. The Zephyr console output is assigned to USART1. Default settings are 115200 8N1.

SPI

OLIMEXINO-STM32 board has up to 2 SPIs. The default SPI mapping for Zephyr is:

  • SPI1_NSS : PA4

  • SPI1_SCK : PA5

  • SPI1_MISO : PA6

  • SPI1_MOSI : PA7

I2C

The OLIMEXINO-STM32 board supports two I2C devices. The default I2C mapping for Zephyr is:

  • I2C1_SCL : PB6

  • I2C1_SDA : PB7

  • I2C2_SCL : PB10

  • I2C2_SDA : PB11

USB

OLIMEXINO-STM32 board has a USB 2.0 full-speed device interface available through its mini USB connector.

  • USB_DM : PA11

  • USB_DP : PA12

CAN

OLIMEXINO-STM32 board has a CAN interface with transceiver on board. CAN is accessible through a screw terminal.

  • CAN_RX : PB8

  • CAN_TX : PB9

Jumpers

The Zephyr kernel uses the OLIMEXINO-STM32 default jumper settings. Note that all jumpers on the board are SMD type. You will need to solder, unsolder, or cut them in order to reconfigure them.

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.

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 the Button sample application.

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

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

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

  4. To build the application and flash it, enter:

    # From the root of the zephyr repository
west build -b olimexino_stm32 samples/basic/button
west flash

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

    $ minicom -D /dev/ttyUSB0 -b 115200

    The -b option sets baud rate ignoring the value from config.

  6. Press the Reset button and you should see the output of button application in your terminal. The state of the BUT button’s GPIO line is monitored and printed to the serial console. When the input button gets pressed, the interrupt handler prints information about this event along with its timestamp.

Note

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