Raspberry pi not working with latest compiler and rtems-git
Alan Cudmore
alan.cudmore at gmail.com
Wed Jun 22 00:51:58 UTC 2016
Hi Pavel,
I can confirm that your branch and the RTEMS git head work on my Pi A+ and Pi Zero now.
The console works when connected. For me, it will not automatically switch to the serial port if the HDMI cable is not connected. I have to comment out the cmdline.txt console switches.
The Pi 2 works too, but with the older firmware. I still need to debug that.
At least I can get back to trying the recently submitted SPI code.
Thanks,
Alan
> On Jun 21, 2016, at 7:24 PM, Pavel Pisa <ppisa4lists at pikron.com> wrote:
>
> Hello Alan,
>
> On Wednesday 22 of June 2016 01:00:39 Alan Cudmore wrote:
>> Hi Pavel,
>> The HDMI Console! I do have it enabled, so I’m sure that’s it.
>> You saved me a lot of time.
>> Thanks,
>> Alan
>
> but at least on my board/setup when RPi HDMI connector
> is not connected to monitor then console is not switches/
> ticker output continues on the serial port.
>
> The detection is little hacky/comparison with know default
> width/height.
>
> So if you do not have connected monitor output should
> work. Or your board reports different state/resolution
> in disconnected case.
>
> It would be much better if some firmware function
> is know to explicitly report monitor is/is not connected.
> But Get EDID block functions describes that it returns
> one block unconditionally
>
> https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface
>
> If it could report error if monitor is not connected
> then it would be better. It would worth to test that
> wit different firmwares and monitors connected/disconnected
> in future.
>
> Best wishes,
>
> Pavel
>
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