Lost in arv programming/updating

[dmitri]

Programming Atmega over an ISP cable (LPT port) is more complicated than loading firmware using MIDI-OX.
If you have problems loading firmware over MIDI-OX on several computers, I'm pretty sure you'll have even more problems trying to program Atmega over an ISP cable and PonyProg. Regardless of this, I gave the link to the instruction on how to program Atmega using an ISP cable in one of the previous posts.

As I see it, your main problem is that you unable to describe exactly what steps you took and what errors you encountered while trying to update firmware using MIDI-OX.

[julijustri]

The megadrum fails when MCT ask to me if i want to update MD, and i say yes. Only follow the instructions of MTC and in this moment the LCD of megadrum is all white. Is possible that the update fails if i select wrong bootloader in MCD???. Thanks for your patience.

[dmitri]

I cannot advise you on problems with updating firmware using MCT. I can only advise you on updating firmware using MIDI-OX.

[Firelord]

"not enought memory for sysex buffers"

Would you please give us a screenshot(s) depicting this message and MIDI-OX' MIDI monitor log?

Oh, and programming ATMega with a LPT-programmer will only work with a real LPT port, USB-LPT will almost certainly not work.

[julijustri]

Exacly that

[dmitri]

You couldn't be more brief.
Do you get this error after you send erase_firmware.syx?
Do you get this error after you send firmware syx file?
How did you configure MIDI-OX?
Do you think I or anyone else have to pull from you all the information to help you?

[julijustri]

I can write the erase and the firmware file config the buffers to low number (60). The megadrum displays "Updated finished", but, obviously MD don´t works. But if i configure the buffers to 6000 or 60000 appears errors about "NO ENOUGHT MEMORY TO SYSEX OUT BUFFERS". I don´t understand anything. I downloaded others old versions of MIDI OX, with the same result. Thanks for your interest, thanks.

[dmitri]

You misconfigured Low Level Input or/and Output Buffers.

In viewtopic.php?f=3&t=622 it says:

2. Start MIDI-OX (don't start it before connecting MegaDrum!). In MIDI-OX menu go to Options->Configure Buffers and set Output, NOT Input, Buffers Size to 60000. Be sure it is actually set to 60000 and not to 6000 since the input field shows only 4 characters.

Can you see a difference between "Buffer Size" and "Buffer Num"?
"Num" must be left at default, which is 16. For unknown me reason you set it to 32761.

[julijustri]

Well Dmitri, you're right. Set the parameter wrong. I'm sorry I made you lose your time, really sorry. I appreciate what you have done for me. I still have problems with the MCT, since it is not how to configure the MD to work with EZ Drummer, and although I detected well cubase MD (when I hit some moves vumeters), but does not sound. I searched information about it, but either I'm very clumsy or not much information about it. Anyway, thanks for all.

[dmitri]

Having another problem? Please, open another topic. And don't be brief describing it.