Avrdude

For detailed info:

$ man avrdude

See Also

avr-gcc
bus pirate
atmega328p
http://doswa.com/blog/2010/08/24/avrdude-5-10-with-ftdi-bitbang/

Useful Lines

For using the Arduino bootloader

$ avrdude -c stk500v1 -P /dev/ttyUSB1 -p m328p -y -U flash:w:main.hex
$ avrdude -c stk500v1 -P /dev/ttyUSB1 -p m328p -y -U flash:r:main.hex:i
$ avrdude -c stk500v1 -P net:localhost;27015 -p m328p -y -U flash:r:main.hex:i

For using the buspirate

$ avrdude -c buspirate -P /dev/ttyUSB1 -p m328p -y -U flash:w:main.hex
$ avrdude -c buspirate -P /dev/ttyUSB1 -p m328p -y -U flash:r:main.hex:i

Parameters

Parameters marked with a * are required.

* Programmer Type

• -c buspirate - for use with the buspirate
• -c stk500v1 - for use with the Arduino bootloader
• other (see the man page)

* Programmer Port

• -P /dev/ttyUSB1 - the most likely for my systems

* Part Identifier

• -p m168 - for use with an ATMega168
• -p m328p - for use with an ATMega328p
• -p m1280 - for use with an ATMega1280

* Burn Counter

Not technically required, but a good idea. The burn counter is stored in the last 4 bytes of eeprom

• -y - to increment the burn counter each burn
• -Y value - to initialise the burn counter

Baud Rate

Required for stk500v1

• -b 57600 - for most of mine

Terminal Mode

• -t - see #terminal_mode for mode

Memory Access

There are others, but these are the most common

• -U flash:operation:filename[:format] - where the firmware lives
• -U eeprom:operation:filename[:format] - non-volatile memory
• -U lfuse:operation:filename[:format] - low fuse byte
• -U hfuse:operation:filename[:format] - high fuse byte
• -U efuse:operation:filename[:format] - extended fuse byte

operation can be:

• r - read
• w - write
• v - verify

filename points to the file to use

format can be:

• a or omitted - for auto-detection
• i - Intel Hex (output from obj-dump)
• r - Raw binary
• other (see the man page)

Terminal Mode Commands

dump

• dump memtype address nBytes - dump nBytes from address in hex and ASCII
• dump - continue for another nBytes

write

• write memtype address byte1 ... byteN - write to memory by hand, currently doesn't work with flash :(

parm

• part - display information on the connected part