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by leggomylibro 2340 days ago
Huh, what do you search for on Taobao to find them? I tried "GD32VF103CB" a week or two ago, but I only got results for the GD32F103 ARM clones.

I guess it makes sense that the addresses aren't quite the same; iirc ST has some licensing restrictions on their SVD/header files saying that you can't use them with other vendors' chips anyways.

Thanks for the extra information!

2 comments

Whoops, I meant TMall[0], its like aliexpress vs alibaba, or vice versa. Same buying process through a third party. Apologies for that.

[0]https://list.tmall.com/search_product.htm?q=gd32vf

I'm guessing you're after the bare MCU, but for others, you can get a nice relatively cheap prototyping board with the chip from Sipeed, for example:

https://www.seeedstudio.com/Sipeed-Longan-Nano-RISC-V-GD32VF...

SeeedStudio has a few others as well:

https://www.seeedstudio.com/tag/RISCV-Board.html

Just note that you need a relatively new J-Link (v10 iirc) to program RISC-V cores using J-Link, alternatively for the Sipeed Longan boards, pick up two of them and you can flash one with a provided debugging/uploading firmware.

Yes, the Longan Nano is very nice but I'm also interested in the bare chips. Seeed also sells cheap JTAG dongles that work with their RISC-V boards, which is nice.
I've been using a clone J-Link which works pretty good. I got it probably 5 years ago, so it's impressive that it works. I think I'm using a patched version of openocd with it though.