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Paranormal MIDI activity

PostPosted: Fri Mar 07, 2014 3:50 pm
by Dovius
Hi,

I have build megadrum by syntex's PCB, programmed MCUs. The trouble is that I dont get proper Midi activity. LCD shows everything just fine, but MIDI-OX show only this

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only very few strikes are recognized, my LED on pcb also doesnt glow. I striked for about 50 times and get only this

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Is it possible, that I programed fuses wrong?
only thing I did was programming PIC like this

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and Atmega644 only this

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I didnt anything else. I read about low, high bits, but dont know anything about it.
Did I programed MCU allright?
What problems could be??

P.S.
I have alreadt burned atmega644 once :))

Re: Paranormal MIDI activity

PostPosted: Fri Mar 07, 2014 4:49 pm
by dmitri
Most likely reasons:
1. Incorrect crystal for Atmega.
2. Mismatch between PIC firmware and PIC crystal.
3. Incorrect fuses programmed into Atmega.

Re: Paranormal MIDI activity

PostPosted: Fri Mar 07, 2014 6:03 pm
by Dovius
So for programming fuses for atmega644 I just only need to do this ?

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Re: Paranormal MIDI activity

PostPosted: Sat Mar 08, 2014 11:00 pm
by dmitri
If you programmed it with a unencrypted bootloader (which is useless) then fuses look correct.

Re: Paranormal MIDI activity

PostPosted: Sun Mar 09, 2014 3:58 pm
by Dovius
finally... MegaDrum is working.... fuf.. lots of work for noobie as me :) my fault was that in ponyProg I clicked write a Device, istead of write EEPROM :) still some little bugs, but everything is fine :) Thank You Dmitri :) wounderful project :)