03. USBasp のファームウェアをアップデートする
以下のように、avrdude usbasp_spi_set_sck_period() error: cannot set sck period; please check for usbasp firmware updateというエラーが出る場合、USBasp のファームウェアを更新することで解消できる。
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47 | avrdude: Version 7.1
Copyright the AVRDUDE authors;
see https://github.com/avrdudes/avrdude/blob/main/AUTHORS
System wide configuration file is /etc/avrdude.conf
User configuration file is /home/{ユーザー名}/.avrduderc
User configuration file does not exist or is not a regular file, skipping
Using Port : usb
Using Programmer : usbasp
AVR Part : ATmega328P
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PC2
RESET disposition : possible i/o
RETRY pulse : SCK
Serial program mode : yes
Parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
PollIndex : 3
PollValue : 0x53
Memory Detail :
Block Poll Page Polled
Memory Type Alias Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- -------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
eeprom 65 20 4 0 no 1024 4 0 3600 3600 0xff 0xff
flash 65 6 128 0 yes 32768 128 256 4500 4500 0xff 0xff
lfuse 0 0 0 0 no 1 1 0 4500 4500 0x00 0x00
hfuse 0 0 0 0 no 1 1 0 4500 4500 0x00 0x00
efuse 0 0 0 0 no 1 1 0 4500 4500 0x00 0x00
lock 0 0 0 0 no 1 1 0 4500 4500 0x00 0x00
signature 0 0 0 0 no 3 1 0 0 0 0x00 0x00
calibration 0 0 0 0 no 1 1 0 0 0 0x00 0x00
Programmer Type : usbasp
Description : USBasp, http://www.fischl.de/usbasp/
avrdude: auto set sck period (because given equals null)
avrdude usbasp_spi_set_sck_period() error: cannot set sck period; please check for usbasp firmware update
avrdude: AVR device initialized and ready to accept instructions
avrdude: device signature = 0x1e950f (probably m328p)
avrdude done. Thank you.
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ファームウェアの用意
USBasp - USB programmer for Atmel AVR controllers - fischl.de
usbasp.2011-05-28.tar.gzをダウンロードする。
USBasp 自体のマイコンは目視で確認したところ ATmega8A を使用している。対応するファームウェアはbin/firmware/usbasp.atmega8.2011-05-28.hexらしい。
ファームウェアを書き込む
USBasp を使って USBasp にファームウェアを書き込む。書き込み対象の USBasp の JP2 はショートさせておく。
以下のコマンドでファームウェアを書き込む。
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24 | $ avrdude -c usbasp -p m8 -U flash:w:usbasp.atmega8.2011-05-28.hex
avrdude error: cannot set sck period; please check for usbasp firmware update
avrdude: AVR device initialized and ready to accept instructions
avrdude: device signature = 0x1e9307 (probably m8)
avrdude: Note: flash memory has been specified, an erase cycle will be performed.
To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude error: cannot set sck period; please check for usbasp firmware update
avrdude: reading input file usbasp.atmega8.2011-05-28.hex for flash
with 4700 bytes in 1 section within [0, 0x125b]
using 74 pages and 36 pad bytes
avrdude: writing 4700 bytes flash ...
Writing | ################################################## | 100% 2.94 s
avrdude: 4700 bytes of flash written
avrdude: verifying flash memory against usbasp.atmega8.2011-05-28.hex
Reading | ################################################## | 100% 2.04 s
avrdude: 4700 bytes of flash verified
avrdude done. Thank you.
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