WCH CH32V307V-EVT-R1

Overview

The WCH [1] CH32V307V-EVT-R1 is an evaluation board for the RISC-V based CH32V307VCT6 SOC.

The board is equipped with a power LED, reset button, USB port for power, and two user LEDs. It also features Ethernet port and built-in programmer.

Hardware

The QingKe V4F 32-bit RISC-V processor of the WCH CH32V307V-EVT-R1 is clocked by an external crystal and runs at 144 MHz.

The WCH webpage on CH32V30x [2] contains the processor’s information and the datasheet. WCH CH32V307V-EVT-R1 board schematics can be found on CH32V307 openwch git repository [5].

Supported Features

The ch32v307v_evt_r1 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.

`ch32v307v_evt_r1/ch32v307` target

Type	Location	Description	Compatible
CPU	on-chip	WCH QingKe V4F RISC-V MCU1	`wch,qingke-v4f`
Clock control	on-chip	WCH CH32V00x Reset and Clock Control (RCC)1	`wch,rcc`
	on-chip	WCH CH32V00x HSE Clock1	`wch,ch32v00x-hse-clock`
	on-chip	WCH CH32V00x HSI Clock1	`wch,ch32v00x-hsi-clock`
	on-chip	Generic fixed-rate clock provider1	`fixed-clock`
	on-chip	WCH CH32V20x/30x PLL1	`wch,ch32v20x_30x-pll-clock`
DMA	on-chip	WCH DMA controller2	`wch,wch-dma`
GPIO & Headers	on-chip	WCH CH32V00x General-Purpose Input/Output (GPIO)5	`wch,gpio`
I2C	on-chip	WCH I2C controller2	`wch,i2c`
Input	on-board	Group of GPIO-bound input keys1	`gpio-keys`
Interrupt controller	on-chip	WCH CH32V00x Programmable Fast Interrupt Controller (PFIC)1	`wch,pfic`
LED	on-board	Group of GPIO-controlled LEDs1	`gpio-leds`
MTD	on-chip	Flash node1	`soc-nv-flash`
Pin control	on-chip	WCH CH32V20x/30x AFIO1	`wch,20x_30x-afio`
Serial controller	on-chip	WCH CH32V00x UART1 7	`wch,usart`
SPI	on-chip	WCH SPI3	`wch,spi`
SRAM	on-chip	Generic on-chip SRAM1	`mmio-sram`
Timer	on-chip	WCH CH32V00x Systick1	`wch,systick`

Connections and IOs

LED

Board LEDs are not connected to SoC in layout. For blinky and threads sample applications you have to use jumper wires to connect them to I/O pins. You also need to change leds status to “okay” in boards/wch/ch32v307v_evt_r1/ch32v307v_evt_r1.dts.

LED connection
J3 header	J4 header
LED1	PD0
LED2	PD1

Programming and Debugging

The ch32v307v_evt_r1 board supports the runners and associated west commands listed below.

	flash	debug
minichlink	✅ (default)

Applications for the ch32v307v_evt_r1 board can be built and flashed in the usual way (see Building an Application and Run an Application for more details). The board includes WCH LinkE [4] programmer accessible on USB-C port P9.

Flashing

You can use minichlink [3] to flash the board. Once minichlink has been set up, build and flash applications as usual (see Building an Application and Run an Application for more details).

Here is an example for the Blinky application.

# From the root of the zephyr repository
west build -b ch32v307v-evt-r1 samples/basic/blinky
west flash

Or you can use Basic thread manipulation sample to test both LEDs.

# From the root of the zephyr repository
west build -b ch32v307v-evt-r1 samples/basic/threads
west flash

Debugging

This board can be debugged via minichlink.