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It's the least expensive CH32V307VCT6 development board I could find on aliexpress (no relation). Unfortunately, it looks like the WCH chip IP itself & its dev
by downvotetruth 4y ago
It's the least expensive CH32V307VCT6 development board I could find on aliexpress (no relation). Unfortunately, it looks like the WCH chip IP itself & its dev env (mounriver - eclipse based) used for debugging is closed with proprietary usb adapter & windows only.
- eqvinox 4y agoAh, Thanks, I actually looked at the chip earlier. The datasheet says it's programmed with "SWDIO" + "SWCLK" pins. Those names normally refer to ARM's SWD standard. If - and that's a big if - they actually implemented proper SWD, the lower layer protocols would be known and it might be possible to get OpenOCD to work to program the chip. (Debugging is a much harder question though…)