Debugging Pico with ST-Link about pico-feedback

[lurch]

https://www.st.com/en/development-tools/st-link-v2.html says that it supports SWD, so I guess you'd need to look at how to get it working with openocd, and then do something slightly different on the line that says

$ openocd -f interface/raspberrypi-swd.cfg -f target/rp2040.cfg

in the Getting Started PDF.

[aallan]

RP2040 uses multi-drop SWD so the ST-Link needs to support that. The major problem is that despite backwards compatibility in the protocols, at startup no device is selected on the bus, therefore you have to select one of the cores before you talk to it (also if you want to debug both cores, ST-Link has to support that as well).

We have no experience with the ST-Link and RP2040 (or Pico). Probably the best place to start investigating whether support was possible would be the ST Community.