USBCANFD SOLO

Overview

The USBCANFD SOLO is a high-performance 1-channel USB to CAN FD adapter board supporting data rates up to 8 Mbps. More information can be found on the can-module.com website.

Hardware

The USBCANFD SOLO board is equipped with an STM32G431C8 microcontroller and features galvanic isolation, status LEDs for the CAN channel, and software-configurable boot settings for entering the built-in bootloader mode.

Default Zephyr Peripheral Mapping

CAN_RX/BOOT0 : PB8
CAN_TX : PB9
ledRX : PA6
ledTX : PA5
USB_DN : PA11
USB_DP : PA12
SWDIO : PA13
SWCLK : PA14
NRST : PG10

Supported Features

The usbcanfd_solo board supports the hardware features listed below.

on-chip / on-board: Feature integrated in the SoC / present on the board.
2 / 2: Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo: Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

System Clock

The FDCAN1 peripheral is driven by PLLQ, which has a frequency of 80 MHz.

Programming and Debugging

The usbcanfd_solo board supports the runners and associated west commands listed below.

	flash	debug

Build and flash applications as usual (see Building an Application and Run an Application for more details).

Flashing

Flashing via USB DFU requires access to the built-in ROM bootloader. Since the board does not have a physical BOOT0 pin, entry into DFU mode must be managed via option bytes. Use an external debugger (such as ST-LINK) to change the nswBoot0 bit to 1 to enter DFU mode. After flashing the firmware via USB DFU, you must change the nswBoot0 bit back to 0 to ensure normal boot behavior from Flash memory.

Alternatively, you can flash the board directly using an ST-LINK debugger.

Here is an example for the Blinky application.

# From the root of the zephyr repository
west build -b usbcanfd_solo samples/basic/blinky
west flash