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Important tip when debugging Pi Pico with openocd and Pico Debug Probe

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MiR:
I just learned the hard way that timers do not work when you debug an app for the Pico. Which makes short delay loops take forever....

A good summary is here:

https://github.com/raspberrypi/pico-sdk/issues/1622

So, when you face the same issue this commandline will solve it:

openocd -f interface/cmsis-dap.cfg -c "set USE_CORE 0" -f target/rp2040.cfg -c "adapter speed 5000"

Have fun,

Michael

VisualLab:

--- Quote from: MiR on April 03, 2024, 09:29:00 pm ---I just learned the hard way that timers do not work when you debug an app for the Pico. Which makes short delay loops take forever....

A good summary is here:

https://github.com/raspberrypi/pico-sdk/issues/1622

So, when you face the same issue this commandline will solve it:

openocd -f interface/cmsis-dap.cfg -c "set USE_CORE 0" -f target/rp2040.cfg -c "adapter speed 5000"

Have fun,

Michael

--- End quote ---

The thread shows that this is a temporary workaround (of course, a workaround is always better than nothing). Ultimately, we probably have to wait for OpenOCD version 0.13 (if the required changes regarding RPi Pico are included in it).

MiR:
In the past Raspberry Fondation was refering to their own branch, but when I last checked this was gone and instead they point the user to official 0.12 release of openocd.
So I followed their advice and ended up in debugging hell.....

Really hope that they fix this/get their fix accepted by openocd in an upcoming release.....

Michael

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