Firmware update issue

[brice]

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.

[dmitri]

Buffer set to what again?

[Synthex]

buffer must be set at 40000

[brice]

same with buffer at 40000

[Synthex]

could you explain step by step what you do ?

[brice]

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.

[dmitri]

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)?

[brice]

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?

[Synthex]

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

[brice]

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