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OLIMEX-STM32-P405

Overview

The OLIMEX-STM32-P405 board is based on the STMicroelectronics STM32F405RG ARM Cortex-M4 CPU.

OLIMEX-STM32-P405

OLIMEX-STM32-P405

Hardware

Information about the board can be found at the OLIMEX-STM32-P405 website and OLIMEX-STM32-P405 user manual. The ST STM32F405RG Datasheet contains the processor’s information and the datasheet.

Supported Features

The olimex_stm32_p405 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.

Pin Mapping

OLIMEX-STM32-P405 connectors

OLIMEX-STM32-P405 connectors

LED

  • USER_LED (red) = PC12

  • PWR_LED (red) = power

Push buttons

  • USER_BUTTON = PA0

  • RST = NRST

External Connectors

JTAG debug

PIN #

Signal Name

Pin #

Signal Name

1

+3.3V

11

2

+3.3V

12

GND

3

PB4 / TRST

13

PB3 / TDO

4

GND

14

GND

5

PA15 / TDI

15

PB4 / TRST

6

GND

16

GND

7

PA13 / TMS

17

8

GND

18

GND

9

PA14 / TCK

19

+5V_JTAG

10

GND

20

GND

UEXT

PIN #

Wire Name

STM32F405 port

1

+3.3V

2

GND

3

PA9/USART1_TX

PA9

4

PA10/USART1_RX

PA10

5

PB6/I2C1_SCL

PB6

6

PB7/I2C1_SDA

PB7

7

PA6/SPI1_MISO

PA6

8

PA7/SPI1_MOSI

PA7

9

PA5/SPI1_SCK

PA5

10

PA4/SPI1_NSS

PA4

GPIO row of pins

Pin

STM32F405 Pin Functions

3V3

N/A

PA1

PA1/USART2_RTS/ADC1/TIM2_CH2

PA8

PA8/USART1_CK/TIM1_CH1/MCO

PB0

PB0/ADC8/TIM3_CH3/TIM1_CH2N

PB1

PB1/ADC9/TIM3_CH4/TIM1_CH3N

PB2

PB2/BOOT1

PB5

PB5/I2C1_SMBAI/TIM3_CH2/SPI1_MOSI

PB8

PB8/TIM4_CH3/I2C1_SCL/CANRX

PB9

PB9/TIM4_CH4/I2C1_SDA/CANTX

VDDA

N/A

GNDA

N/A

PB10

PB10/I2C2_SCL/USART3_TX/TIM2_CH3

PB11

PB11/I2C2_SDA/USART3_RX/TIM2_CH4

PB12

PB12/SPI2_NSS/I2C2_SMBAL/USART3_CK/TIM1_BKIN

PB13

PB13/SPI2_SCK/USART3_CTS/TIM1_CH1N

PB14

PB14/SPI2_MISO/USART3_RTS/TIM1_CH2N

PB15

PB15/SPI2_MOSI/TIM1_CH3N

RST

NRST

PC0

PC0/ADC10

PC1

PC1/ADC11

PC2

PC2/ADC12

PC3

PC3/ADC13

PC4

PC4/ADC14

PC5

PC5/ADC15

PC6

PC6/TIM3_CH1

PC7

PC7/TIM3_CH2

PC8

PC8/TIM3_CH3

PC9

PC9/TIM3_CH4

PC10

PC10/USART3_TX

PC12

PC12/USART3_CK

PC13

PC13/ANTI_TAMP

PD2

PD2/TIM3_ETR

+5V_USB

N/A

VIN

N/A

GND

N/A

System Clock

OLIMEX-STM32-P405 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 168 MHz.

Programming and Debugging

The OLIMEX-STM32-P405 board does not include an embedded debug tool interface. You will need to use ST tools or an external JTAG probe. In the following examples a ST-Link V2 USB dongle is used.

Flashing an application to the Olimex-STM32-P405

The sample application Hello World is being used in this tutorial.

Connect the ST-Link USB dongle to your host computer and to the JTAG port of the OLIMEX-STM32-P405 board.

Now build and flash the application.

# From the root of the zephyr repository
west build -b olimex_stm32_p405 samples/hello_world
west flash

Run a serial host program to connect with your board:

$ minicom -D /dev/ttyACM0

After resetting the board, you should see the following message:

***** BOOTING ZEPHYR OS v1.8.99 - BUILD: Aug  4 2017 14:54:40 *****
Hello World! arm

Debugging

You can debug an application in the usual way. Here is an example for the Hello World application.

# From the root of the zephyr repository
west build -b olimex_stm32_p405 samples/hello_world
west debug