1. Functional Features
- Support downloading and debugging of WCH RISC‐V architecture MCU like CH32V003, etc. and ARM chips with SWD interface, with two‐wire interface, fast speed and stable operation.
- For CH32V003-specific help, please check CH32V003 tutorial series
- Support 3.3/5V dual power output.
- Red and blue LED indicators for easy status indication.
- Header Pins are marked with the function
- Support for automatic firmware detection and upgrade.
- Support for one‐button switching of RISC‐V/ARM mode by the host computer.
- Use the transparent enclosure to protect the debugger/programmer PCB from damage.
2. Function introduction
WCH‐LinkE debugger programmer module can be used for Flashing and debugging of WCH RISC‐V architecture MCU and ARM chips with SWD interface.
It is connected to the host computer via USB2.0 full-speed interface for plug‐and‐play driver‐free installation and connected to the target chip by SWD interface for debugging and programming.
Also, has 1 way serial port for easy debugging output.
3. Hardware description
Pin Definition
If WCH-LinkE firmware needs to be updated
1. Online update, MounRiver Studio/WCH-LinkUtility will have a pop-up reminder when you click download, click Yes to start the update.
2. Manual online update, press and hold the IAP key, power on until the blue LED is lit, click download, MounRiver Studio/WCH-LinkUtility will have a pop-up reminder, click Yes to start the update.
4. Instructions for use
SWD connection method
USB to TTL serial port connection
Mode switching:
Way 1: Use MounRiver Studio software to switch to WCH-LinkE mode
- Power up the WCH-LinkE, open MounRiver Studio, and enter the download configuration
- Select the target mode and apply
Notes:
- 1 is to select the target mode
- 2 is to query the current mode
- 3 is to set the target mode
Way 2: Use the WCH-LinkUtility tool to switch to WCH-LinkE mode
- Power up WCH-LinkE and open WCH-LinkUtility tool
- Select the target mode and apply
Way 3: Use the ModeS key to switch WCH-LinkE mode (WCH-LinkE-R0-1v2 only)
- Press and hold the ModeS key to power up until the status indicator lights up to complete the mode switch.
Notes:
- When downloading and debugging, the blue LED flashes
- WCH-LinkE maintains the switched mode when used subsequently
- WCH-LinkE high-speed version only for CH32F20x/CH32V20x/CH32V30x to speed up
5. Specifications
Serial port default parameters
Data bit: 8
Stop bit: 1
Checksum bit: None
Flow control: None
6. Technical Resources
- MounRiver Studio access website: http://mounriver.com/
- WCH-LinkUtility access website:https://www.wch.cn/downloads/WCH-LinkUtility_ZIP.html
- WCHISPTool access website: https://www.wch.cn/downloads/WCHISPTool_Setup_exe.html
- WCH-Link information website: https://www.wch.cn/products/WCH-Link.html
7. Buy Online
You can buy from our Distribution Partners.
Our Partners in North America
