Subj : Re: Raspberry Debug Probe query
To   : Single Stage to Orbit
From : Theo
Date : Tue Jun 25 2024 15:21:55

Single Stage to Orbit <alex.buell@munted.eu> wrote:
> So that's the difference, thanks for the info, much appreciated. To sum
> up SWD on the Raspberry Pi probe only good enough for rp2040s and
> others with SWD.
>
> What do you suggest I use on raspberrypi instead? It is indeed the boot
> process I need to debug. It is working OK in Qemu 9.x but does not boot
> on real rpi hardware, either rpi3 and rpi4.

I'd maybe try a second RPi running OpenOCD and the GPIO to drive the JTAG
pins on the first RPi:
https://forums.raspberrypi.com/viewtopic.php?t=336001

Theo

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