Super Mini WCH-Link Debugger

1. Product introduction:
    The ultra-miniature WCH-Link is designed based on the schematic diagram and firmware officially provided by WCH.
    It can be used as a RISC-V debugger or as a DAP LINK to debug ARM microcontrollers such as STM32, etc.
2. Product parameters:
    Size: 2.2x0.7cm super mini;
    Physical interface: SH1.0 6P or 2.54 2x4P;
    Interface lead-out: TXD, RXD, SWCLK, SWDIO, GND, 3V3 all leads;
3. Firmware programming method:
    3.1 , first solder the Upgr short-circuit pad on the back, and then plug in the USB cable to the computer to put the chip into firmware burning mode;
    3.2. Install and open the WCH-ISP-TOOL official burning tool, and select "CH54x series" in the chip series ”, select the device in the “USB Device List”, and select the official firmware (bin file) provided in the “User Program File”;
 
    3.3. Then click “Download” to start downloading, it will be erased first and then the program will be downloaded. When the progress bar below is finished, you can close the software and unplug the debugger;
 
    3.4. After burning the firmware, disconnect the Upgr pad, and you can use the debugger normally. If the LED indicator light is on, it is in ARM mode, if it is not on, it is in RISC-V mode. Press and hold the Mode button to power on to switch modes;