[sdiy] bizarre pic-midi issues

[cheater cheater]

Karl,
I remember the MIDIBOX project has had problems with the onboard UART
in some of the pics. It had a bug which made it useless for MIDI. They
had to use an external UART, try checking ucapps.de and the forums for
more info. I remember the bug persisted in revisions for a few long
years, and is one of the small things why the project was slowly but
surely ported to C so that they don't have to deal with a limiting
platform.

Cheers,
D.

On Fri, Apr 16, 2010 at 18:37, Karl Ekdahl <elektrodwarf at yahoo.se> wrote:
> Hi list, i've stumbled upon some very bizarre PIC MIDI issues. I'm able to send MIDI just fine, but when i try to receive it i half the time get junk and half the time get good data. Usually (for me), the issue seems to be to find the right speed settings, but as the transmission works fine that can't be it. The hardware seems rock solid so i really don't understand what's going on... any hints or thoughts would be awesome! Oh yeah it seems to work "okay" if i use the PIC ONLY to process MIDI, but if i try and do anything else in the same loop i only get garbage - that's on a PIC running at 12MHZ - can't be right. But transmission still works..
>
> Thanks
>
> karl
>
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>