wch openocd liberated from proprietary driver

[jnk0le]

openocd fork for wch is finally liberated from proprietary driver.
Only requirement is to install winusb (libusb) by zadig tool. (uninstall proprietary one first)

All that was needed was this:
https://github.com/jnk0le/openocd-wch/commit/aa6b548f74dbfba2f240660fcc70ed70f12a1ca9

Literally.

ch347 (aka ch342 aka ch345 aka ch341) based adapters couldn't be liberated due to missing some files.

prebuild packages are available here: https://github.com/jnk0le/openocd-wch/releases/tag/28012024-liberated

[prosper]

so, this consists of a flash driver for the various wch mcus, a transport driver for the single wire debug interface, and a driver for tge various wchlink programmers?

at a glance, it seems to support riscv and arm mcus, but not the 8051s. Which wchlinks does it support? (wait, i see, the linkE only)

is this going to be upstreamed, or is the plan to maintain it as a fork?



very exciting. thanks for your work on this!

[jnk0le]

Which wchlinks does it support? (wait, i see, the linkE only)

Should support all, but the button-less one still needs proprietary driver.

so, this consists of a flash driver for the various wch mcus, a transport driver for the single wire debug interface, and a driver for tge various wchlink programmers?

at a glance, it seems to support riscv and arm mcus, but not the 8051s.

It's basically generic openocd with added support for WCH stuff.

is this going to be upstreamed, or is the plan to maintain it as a fork?

The code is spaghetti enough to not get upstreamed, not to mention the way it's being developed (https://github.com/jnk0le/openocd-wch/pull/1#issuecomment-1738259661) and merged back into the tree

[jnk0le]

Should support all, but the button-less one still needs proprietary driver.

Wait, button less one is CH549 (aka ch375 of course). Should be liberated as well.

ch347 is the HS jtag flashed onto WCH-LinkE (or a dedicated chip with jtag)