Change ATmega128

[sandokan]

I changed the processor atmega128 with the board,and can not download from the server bootloader.
I used avrdude and command avrdude -c usbasp -p m128 -U lfuse:w:0x2f:m -U hfuse:w:0xc4:m -U efuse:w:0xff:m -U lock:w:0x3f:m.

[MWfire]

First you need to put hex of some nhex fireware, upgrade to 1.1.94(bootloader), then upgrade nhex to uhex and then you are done.

[sandokan]

The only connection with the board is ISP, maybe some advice

[MWfire]

yes, you need to put first firmware over ISP. Also set fuses.

[sandokan]

fuse I set up(avrdude -c usbasp -p m128 -U lfuse:w:0x2f:m -U hfuse:w:0xc4:m -U efuse:w:0xff:m -U lock:w:0x3f:m)
where to download the firmware, and which is the command to avrdude

[sandokan]

connect to vemstune, the serial number is 0

[MWfire]

what is number on board?

[silivri]

hii all,
i have a same problem the serial number is 0 and safe mode active.
some body can help me??

[jrussell]

hii all,
i have a same problem the serial number is 0 and safe mode active.
some body can help me??

If you changed the ATmega128 or your ECU is reading serial nr 0 otherwise, the bootloader is missing and you need to contact info@vems.hu with as much information as you have about the problem to get a new bootloader. You'll have to upload the bootloader with an ISP programmer. Or they may offer to sell you a new ECU in exchange for the old one for a reduced price.