[PATCH v2] Raspberrypi: updated the console interface.

Christian Mauderer christian.mauderer at embedded-brains.de
Tue Jan 21 09:12:36 UTC 2020


On 21/01/2020 00:33, Chris Johns wrote:
> On 29/12/19 8:03 pm, Christian Mauderer wrote:
>> - You can use a real hardware debugger for it. That's what I currently
>> do - also qemu + gdb could be more powerfull. For that you basically
>> connect the Alt4 pins (see https://pinout.xyz/pinout/jtag) to a hardware
>> debugger (something supported by OpenOCD, Segger J-Link, ...) add
>> "gpio=22-27=a4" to your config.txt and load a very minimal kernel that
>> does just an endless loop. Note that I had some trouble debugging more
>> than one core with my debugger.
> 
> This is really valuable information, thank you. It would be nice to see it in
> the BSP section of the user manual :)
> 
> Chris
> 

You can find that stuff with not too much search on a lot of different
web sites. Therefore I didn't think about adding it to the manual. But I
can add a short note in the next days.

Best regards

Christian
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