OLIMEX-STM32-H405

Overview

The OLIMEX-STM32-H405 board is based on the STMicroelectronics STM32F405RG ARM Cortex-M4 CPU.

OLIMEX-STM32-H405

Fig. 130 OLIMEX-STM32-H405 top

OLIMEX-STM32-H405

Fig. 131 OLIMEX-STM32-H405 bottom

Hardware

Information about the board can be found at the OLIMEX-STM32-H405 website and OLIMEX-STM32-H405 user manual. The ST STM32F405RG Datasheet contains the processor’s information and the datasheet.

Supported Features

The olimex_stm32_h405 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

USB

on-chip

USB device

WATCHDOG

on-chip

independent watchdog

COUNTER

on-chip

rtc

RNG

on-chip

random number generator

Other hardware features have not been enabled yet for this board.

Pin Mapping

LED

  • USER_LED (green) = 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

2

+3.3V

3

PB4 / TRST

4

GND

5

PA15 / TDI

6

GND

7

PA13 / TMS

8

GND

9

PA14 / TCK

10

GND

11

GND

12

GND

13

PB3 / TDO

14

GND

15

GND

16

GND

17

RST

18

GND

19

GND

20

GND

USB Type B

PIN #

Signal Name

1

+5V_USB

2

PA11 / USBDM

3

PA12 / USBDP

4

GND

EXT1 header

PIN #

Signal Name

Pin #

Signal Name

1

2

9

PC11 (USB DISC)

10

PC12 (LED)

25

26

EXT2 header

PIN #

Signal Name

Pin #

Signal Name

1

2

5

6

GND

7

PA2 / USART2_TX

8

9

10

PA3 / USART2_RX

25

26

System Clock

OLIMEX-STM32-H405 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-H405 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-H405

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-H405 board.

Now build and flash the application.

# From the root of the zephyr repository
west build -b olimex_stm32_h405 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 build v2.7.99-3008-g2341052abe7c  ***
Hello World! olimex_stm32_h405

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_h405 samples/hello_world
west debug