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Olimex LoRa STM32WL DevKit

Overview

LoRaWAN development kit based on Olimex BB-STM32WL module using the STM32WLE5CCU6 MCU.

Fig. 131 Olimex LoRa STM32WL DevKit (credit: OLIMEX)

The board has below hardware features:

More information about the board and the module can be found here:

The Zephyr Olimex LoRa STM32WL Dev Kit configuration supports the following hardware features:

Interface	Controller	Driver/Component
ADC	on-chip	adc
AES	on-chip	crypto
COUNTER	on-chip	rtc
CLOCK	on-chip	reset and clock control
FLASH	on-chip	flash
GPIO	on-chip	gpio
I2C	on-chip	i2c
MPU	on-chip	arch/arm
NVIC	on-chip	arch/arm
PINMUX	on-chip	pinmux
RADIO	on-chip	LoRa
SPI	on-chip	spi
UART	on-chip	serial port-polling; serial port-interrupt
WATCHDOG	on-chip	independent watchdog

Other hardware features are not yet supported on this Zephyr port.

The default configuration can be found in the defconfig and dts files:

Applications for the olimex_lora_stm32wl_devkit board configuration can be built the usual way (see Building an Application).

The board contains an on-board debug probe which implements the CMSIS-DAP interface.

It can also be debugged and flashed with an external debug probe connected to the SWD pins.

The built-in debug probe works with pyOCD, but requires installing an additional pack to support the STM32WL:

$ pyocd pack --update
$ pyocd pack --install stm32wl

Connect the board to your host computer and build and flash an application.

# From the root of the zephyr repository
west build -b olimex_lora_stm32wl_devkit samples/hello_world
west flash

Run a serial terminal to connect with your board. By default, usart1 is accessible via the the built-in USB to UART converter.

$ picocom --baud 115200 /dev/ttyACM0

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

# From the root of the zephyr repository
west build -b olimex_lora_stm32wl_devkit samples/basic/blinky
west debug