Problem with midi through usb

[denis]

yes. I bought the kit from synthex.
I have purchased two kits. And the first board is started midi problem and then firmware is gone. But the other one is working perfect.

So is it possible to fix this one?

[dmitri]

Ask Synthex to confirm that a bootloader version in it is 20MHz.

[denis]

Ask Synthex to confirm that a bootloader version in it is 20MHz.

thanks for your help dimitri and by the way also thanks for this beautifull megadrum.

[Synthex]

Ask Synthex to confirm that a bootloader version in it is 20MHz.

Yes, this is a bootloader version 20MHz.

[Synthex]

yes. I bought the kit from synthex.
I have purchased two kits. And the first board is started midi problem and then firmware is gone. But the other one is working perfect.

So is it possible to fix this one?

If you are unable to flash the firmware, I will send you a new Atmega ...

[dmitri]

yes. I bought the kit from synthex.
I have purchased two kits. And the first board is started midi problem and then firmware is gone. But the other one is working perfect.

So is it possible to fix this one?

If you are unable to flash the firmware, I will send you a new Atmega ...

If the bootloader is for 20MHz than upgrading via it should work provided MIDI input from PIC to Atmega works. PIC-to-Atmega MIDI link can be tested using the good Atmega chip - try loading with MIDI-OX this SysEx configuration file:

megadrum32.syx

[denis]

ok, I'm at work now and I'll try it at the evening.
Can I also try midi connection with sysex recieve from the good atmega? I dont want to risk the working one.

Synthex thanks for it but now I want to try saving the chip. Shipping+new atmega is alot of money again=)
May be later if i can not manage to fix it.

If I can not update the firmware, I can try to reprogram the atmega through Icsp port with ltp port right?

[dmitri]

ok, I'm at work now and I'll try it at the evening.
Can I also try midi connection with sysex recieve from the good atmega? I dont want to risk the working one.

Testing PIC-to-Atmega internal MIDI link you have to do with good Atmega at the receiving end. It's not possible to reprogram Atmega(i.e. to damage it in your case) if it is not in Firmware Updater mode.

Synthex thanks for it but now I want to try saving the chip. Shipping+new atmega is alot of money again=)
May be later if i can not manage to fix it.

If I can not update the firmware, I can try to reprogram the atmega through Icsp port with ltp port right?

Of course you can do it and it is very simple.

[denis]

Can you please tell me how to flash atmega by pongprog2000. This will be my first pic flashing.
I made the ıscp cable and connected it to the board and when I click read device/program memory/data memory it says "device missing or unknown device(-24)"

What should i do after I open firmware? "write device, write program memory or write data memory?"

[denis]

I tried to write hex file but I got "write failed" message. In Security and Configuration bits setting I can not mark spien and when I click write device it says "device missing or unknown device(-24)" and I click ignore to continue