Feature Request: Read Protection

Question

Feature Request: Read Protection

Closed this issue a year ago · 7 comments

Hello,

is it possible to enable and disable the CH32Vxx flash read-out protection (see image below)? I understand that - at least for CH32V003 - protection is enabled by default, so I assume this must be possible somehow...?

For your advice thanks a lot in advance!

Greetings from Germany, Georg

Answer 1 · 2023-06-04T00:43:57.000Z

It requires some reverse engineering. I'll check this.

Answer 2 · 2023-06-09T01:16:12.000Z

OpenOCD source code: https://github.com/xu7wong/openocd_wchlink

from https://www.wch.cn/bbs/thread-91946-1.html (chinese conversation)

archive: openocd-wchlink.bundle.zip

Answer 3 · 2023-07-02T04:06:28.000Z

@gicking @septs
After digging into the WCH-LinkUtility UI, Flash protect/unprotect is only supported by CH32V003/V103/V20x/V30x/X035.

This is implemented in the newest main branch. You can check if it works.

I haven't got a CH32X035. 😢 So CH32X035 is not supported yet.

Answer 4 · 2023-08-01T19:30:32.000Z

hi,

sorry for the long delay! I bricked my CH32V003 and had to wait for a replacement chip.

I just tried protect/unprotect on the (new) CH32V003 and I can confirm that it works in my setup (Linux Ubuntu 22.04 with WCH-LINKE-R0-1v3. Thanks a lot!

Currently I have no other device to test it with, so should I close this issue...?

Answer 5 · 2023-08-02T03:31:41.000Z

@gicking Thanks. I'll close this. I tested this on my CH32V003-EVT.

Answer 6 · 2024-01-13T23:12:50.000Z

@andelf is CH32X035 supported yet? I tried to unprotect for X035, and it did not do anything.

Answer 7 · 2024-01-14T16:55:10.000Z

@smaharj1 unprotect & protect changes since old version of wlink.
So I spent some time digging into the new version.