手元にあったusbasp V2.0のファームウエアをなんとなくアップデートしてみた。入っていたファームウエアは不明。今後使うかも不明。

ファームウエアは
ここからダウンロード。
avrdudeは
こちらから。
ダウンロードしたファイルを解凍し、usbasp.atmega8.2011-05-28.hex ファイルをavrdudeと同じフォルダにコピーしておいたほうが手間がかかりません。
以下コマンド。comポートは適当に読み替えてください。
D:\avrdude-6.1-mingw32>avrdude.exe -P com5 -b 19200 -c av
risp -p m8 -U flash:w:usbasp.atmega8.2011-05-28.hex:i
avrdude.exe: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.08s
avrdude.exe: Device signature = 0x1e9307
avrdude.exe: NOTE: "flash" memory has been specified, an erase cycle will be per
formed
To disable this feature, specify the -D option.
avrdude.exe: erasing chip
avrdude.exe: reading input file "usbasp.atmega8.2011-05-28.hex"
avrdude.exe: writing flash (4700 bytes):
Writing | ################################################## | 100% 7.80s
avrdude.exe: 4700 bytes of flash written
avrdude.exe: verifying flash memory against usbasp.atmega8.2011-05-28.hex:
avrdude.exe: load data flash data from input file usbasp.atmega8.2011-05-28.hex:
avrdude.exe: input file usbasp.atmega8.2011-05-28.hex contains 4700 bytes
avrdude.exe: reading on-chip flash data:
Reading | ################################################## | 100% 5.75s
avrdude.exe: verifying ...
avrdude.exe: 4700 bytes of flash verified
avrdude.exe: safemode: Fuses OK (E:FF, H:D9, L:9F)
avrdude.exe done. Thank you.
D:\avrdude-6.1-mingw32>avrdude.exe -P com5 -b 19200 -c av
risp -p m8 -U hfuse:w:0xC9:m
avrdude.exe: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.06s
avrdude.exe: Device signature = 0x1e9307
avrdude.exe: reading input file "0xC9"
avrdude.exe: writing hfuse (1 bytes):
Writing | ################################################## | 100% 0.06s
avrdude.exe: 1 bytes of hfuse written
avrdude.exe: verifying hfuse memory against 0xC9:
avrdude.exe: load data hfuse data from input file 0xC9:
avrdude.exe: input file 0xC9 contains 1 bytes
avrdude.exe: reading on-chip hfuse data:
Reading | ################################################## | 100% 0.01s
avrdude.exe: verifying ...
avrdude.exe: 1 bytes of hfuse verified
avrdude.exe: safemode: Fuses OK (E:FF, H:C9, L:9F)
avrdude.exe done. Thank you.