MIDI Merger Dropping Bytes

Testing/Troubleshooting
1

Hi,

I built the DIY MIDI Merger:

MIDI Merger

Using the 16f88 variant. Burned the hex file w/ PicKit2, no errors other than a warning about some of the config options not being specified in the hex file.

The merger works, i.e it receives data from both ports and echoes it at the output, except for the fact that it is dropping bytes, frequently, losing NoteOff, for example. This seems to be slightly worse on one input than the other.

Does anyone have any ideas why this might be happening?

Thanks.

2

Hi,

It’s not the same:

http://discourse.midibox.org/t/topic/12238

, but the additional resistor can do more stable the merger work.

Regards,

Janis

3

Thanks, Janis. I’ll try the resistor & see if it helps.

Hi,

It’s not the same:

http://discourse.midibox.org/t/topic/12238

, but the additional resistor can do more stable the merger work.

Regards,

Janis

4

Thanks, Janis. I’ll try the resistor & see if it helps.

Hi,

I would also realize the merger with the 16F88 it works well

with pullup resistor on pin 4 ?

I don’t want to use any leds I leave pins disconnected ?

Peace

Djé

5

I don’t want to use any leds I leave pins disconnected ?

Yes.

6

Yes.

Merci