I am trying to upload the Teacup firmware to an atmega644 on which I myself have burned the boatloader file "bootloader-644-20MHz.hex from Gen7 arduino IDE support using winavr/avrdude and a usbasp programmer.
Uploading firmware won't work on this atmega644 from the Generation 7 board,
I already have another atmega644/20MHz running teacup on the same board and I can easily upload the firmware on it.
Why I can't upload teacup/test fimware to it any idea ?
