Still bit problems

[ThomasT]

Hi!

I just had a little time to work on the midibox.

As you may remember a got some bit errors while flashing the MIOS via MIDI-In.

I burned the MIOS.hex directly into the PIC.

The I try to upload a checkerboard-pattern from 0x4000. Again I got the right checksum, but some bit errors. It seems that bits are only lost, never doubled.

Pattern like 01010101 mutate to 0110101...

If I understand the UART/MIDI interface correctly the signal has no build in takt like SPDIF. So the incoming signal is sampled in shorter intervalls.

I really don't understand why i'm getting this f****** bit errors. MIDI-ping works.

Different speeds while sending the MIDI-syx did not help.  

Greeting Thomas

[TK.]

Hi Thomas,

my suggestion: just send me your core module, it will save your time and give me the possibility to explore the most mysterious upload problem of the last year ;-)

Best Regards, Thorsten.

[ThomasT]

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