Re: avrdude5.5 + stk500: ***failed

I can't write individual bytes in interactive mode either:

$ avrdude -P/dev/ttyS1 -p8515 -v -cstk500v2 -F -t

avrdude> write flash 0x0 0xaa 0xab
>>> write flash 0x0 0xaa 0xab 
avrdude (write): error writing 0xaa at 0x00000, rc=-6
avrdude (write): error writing 0xaa at 0x00000 cell=0xff
avrdude (write): error writing 0xab at 0x00001, rc=-6
avrdude (write): error writing 0xab at 0x00001 cell=0xff