.. zephyr:board:: ch32v003evt

Overview

The WCH_ CH32V003EVT hardware provides support for QingKe V2A 32-bit RISC-V processor and the following devices:

CLOCK
:abbr:GPIO (General Purpose Input Output)
:abbr:NVIC (Nested Vectored Interrupt Controller)

The board is equipped with two LEDs. The WCH webpage on CH32V003_ contains the processor's information and the datasheet.

Hardware

The QingKe V2A 32-bit RISC-V processor of the WCH CH32V003EVT is clocked by an external crystal and runs at 48 MHz.

Supported Features

.. zephyr:board-supported-hw::

Connections and IOs

LED

LED1 = Unconnected. Connect to an I/O pin (PD4).

Programming and Debugging

.. zephyr:board-supported-runners::

Applications for the ch32v003evt board target can be built and flashed in the usual way (see :ref:build_an_application and :ref:application_run for more details); however, an external programmer is required since the board does not have any built-in debug support.

The following pins of the external programmer must be connected to the following pins on the PCB (see image):

VCC = VCC (do not power the board from the USB port at the same time)
GND = GND
SWIO = PD1

Flashing

You can use minichlink to flash the board. Once minichlink has been set up, build and flash applications as usual (see :ref:build_an_application and :ref:application_run for more details).

Here is an example for the :zephyr:code-sample:blinky application.

.. zephyr-app-commands:: :zephyr-app: samples/basic/blinky :board: ch32v003evt :goals: build flash

Debugging

This board can be debugged via OpenOCD or minichlink.

Testing the LED on the WCH CH32V003EVT

There is 1 sample program that allow you to test that the LED on the board is working properly with Zephyr:

.. code-block:: console

samples/basic/blinky

You can build and flash the examples to make sure Zephyr is running correctly on your board. The button and LED definitions can be found in :zephyr_file:boards/wch/ch32v003evt/ch32v003evt.dts.

References

.. target-notes::

.. _WCH: http://www.wch-ic.com .. _WCH webpage on CH32V003: https://www.wch-ic.com/products/CH32V003.html