Hello friends, I just built a Gen7 Board-AVR1.5 with a blank ATmega1284P-PU at 16 / 20 MHz as the intruduction at wiki web. But when I burn the bootloader using Arduino IDE and USBtinyISP, the follwoing error warning alway appeared: " avrdude: verification error, First mismatch at byte 0xF800 0x8F !=0xFF aurdude: verification error: content mismatch " Please give me some clue to solby Reprap-ken - Next Wave Electronics Working Group