Flash eines Microcontrollers mit AVRDude auslesen und beschreiben
In meinem Beispiel benutze ich als Microcontroller den ATMega32 und nutzte zum beschreiben und lesen den USBTinyISP
Flash auslesen
$ avrdude -c usbtiny -p m32 -U flash:r:bla.hex:i avrdude: AVR device initialized and ready to accept instructions Reading | ################################################## | 100% 0.01s avrdude: Device signature = 0x1e9502 avrdude: reading flash memory: Reading | ################################################## | 100% 17.15s avrdude: writing output file "bla.hex" avrdude: safemode: Fuses OK avrdude done. Thank you.
Der Inhalt des Flash wurde in die Datei main.hex geschrieben.
Flash schreiben
Hier wird der Inhalt aus main.hex in den Flash geschrieben
$ avrdude -c usbtiny -p m32 -B 1 -U flash:w:main.hex
avrdude: Setting SCK period to 1 usec
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.01s
avrdude: Device signature = 0x1e9502
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: Setting SCK period to 1 usec
avrdude: reading input file "main.hex"
avrdude: input file main.hex auto detected as Intel Hex
avrdude: writing flash (16754 bytes):
Writing | ################################################## | 100% 3.67s
avrdude: 16754 bytes of flash written
avrdude: verifying flash memory against main.hex:
avrdude: load data flash data from input file main.hex:
avrdude: input file main.hex auto detected as Intel Hex
avrdude: input file main.hex contains 16754 bytes
avrdude: reading on-chip flash data:
Reading | ################################################## | 100% 2.49s
avrdude: verifying ...
avrdude: 16754 bytes of flash verified
avrdude: safemode: Fuses OK
avrdude done. Thank you.