Read or set MCU SRAM_CODE_MODE#113
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Hi!
I know how it looks.
Yes, I don't have a clue how to program in rust and yes it is vibe coded.
But I just needed to be able to switch between various memory split models using wlink just like official WCH tools are able to.
So I plugged WCH-link to my USB Packet viewer, connected a devboard with CH32V307 and dumped transmission from few sets and gets of memory assignments.
Then I chatted with GPT-5.3-Codex and it parsed the logs, broke down the transmission, found that for this function is responsible a pair of 0x0d/0x17 and 0x0d/0x18 commands and added implementation of new
mem-splitCLI command.I tested it on a bunch of CH32V30X chips I have and it works. I don't have CH32V20X so I don't know how it will behave there, especially as GPT decided to use old 0x0d/0x04 and 0x0d/0x05 commads documented in protocol.md for it.
If someone would like to test it I made a release on my fork.
I have no idea whether it resulted with a good rust so I won't be worried if this PR will be declined but it would be great to add such function to main based on my research. I can add dumps of USB comminication and scripts to parse it when needed.
In case of a review I'd be happy to help but only I can do is to give it to the chat and hope that it will produce something ok-ish enough, as I said I don't speak rust :)