CH552 as CMSIS‐DAP link
if you have a spare CH552 board laying around it is very good for DAPLINK as it is HID compliant so no driver is required and it work with every software
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Download WCH ISP Tool and install it. The installation process will include the bootloader driver.
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Download DAPlink firmware
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Open the wchispstudio, select CH55x/CH552/download method USB, for object file 1 choose the previous downloaded bin file and check it like below.
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Hold the boot button of the dev board, plug in the ch552 to pc, then release the button after you see a device in the dev list option.
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Quickly download the firmware before the download mode time out, afterward a usb HID device and a usb to serial will appear in device manager
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Connect the ch552 to target using the below pins.
| SWD | CH552 |
|---|---|
| SWDIO | P1.5 |
| SWCLK | P1.6 |
| NRST | P1.7 |
| TVCC | 3V3 |
| GND | GND |
- All done!