www.megadrum.info

any idea why when I used MIDIOX to update my Megadrum 2.7 kit after the process is done and I get the "update finished"
I still have the old firmware.

I have the buffer set to 4000
and use proper .syx files.

Buffer set to what again?

buffer must be set at 40000

same with buffer at 40000

could you explain step by step what you do ?

I plug the megadrum32 while holding left, then press down
start midiox
go to action / send sysex
select the megadrum644_20_32_20080702.syx

the display says "update finished" after about 10 secs

about midiox options,
now I have the buffers set as
40000
16
40000
16

and in the midi devices I highlight "1) Périphérique audio USB" in both input and output.

Is the bootloader of an old type without crystal speed selection or of a new type?
If of an old type - is it correct correct speed version?
Are the Fuse bits for Atmega set correctly (i.e. none of BootlockXX/LockX are set)?

sorry I think Synthex can answer that, I don't know enough

but on the atmega I can read
Atmega644
20PU
0709

what are the fuse bits?

It's bootloader for 20 MHz version.
You have 2 kits, isn't it ?
Same problem on both ?

I have only 1 kit soldered and 1 Atmega here, my friend who does the soldering has the second kit but he will only come back in august.

wish I had kept the chips, grrr