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General discussion • Does debug probe use GPIO Pins 7, 8, 15, 16

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Not sure where to post questions about debug probe for Pi Pico, hope here is OK.

I am using the debug probe (with probe-rs on a mac, from Rust Rover and VS Code) with my Pi Pico, successfully.

It uses Pins #1 and #2 for UART, that is clear.
It also connects directly into the 3wire connected for SWD, that's clear.

In the debug probe web page here:
https://www.raspberrypi.com/documentati ... probe.html

You can find the image attached below:
Screenshot 2024-10-17 at 1.37.51 PM.png
This diagram shows 4 LEDs that are on-board the Debug Probe to help understand what's happening.
Beside the text for each is a GPIO pin number, suggesting those pins are used to control those LEDs.

My question is:
- are those just references to GPIOs of the chip used in the debug probe and I can forget about them, or
- are those references to GPIO pins of the board being connected to and debugged, and those GPIO pins should NOT be used by my app when used in conjuction with the debug probe? (I am not sure how they would do that, but want to make sure).

Thanks for any insights.

Statistics: Posted by andrewdmackenzie — Thu Oct 17, 2024 11:48 am



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