NAME
avrprog - Programmer for Atmel AVR microcontrolers
SYNOPSIS
avrprog [ -r | -w | -c | -e | -b reset-pin-value | -L lock-mode ] [ -E
] [ -d device ] [ -p port-address ] [ -R ] [ -v ] [ -V ] [ -h ]
DESCRIPTION
Programmer for Atmel AVR microcontrollers that uses PC parallel port to
program the device in serial mode. The device can be programmed "in-
system". It comes with a schematic of the hardware required. The
hardware was designed to be efficient and unexpensive.
This program gets/sends data from stdin/stdout in Intel Hexadecimal
Object File Format and reads/writes to the AVR device.
OPTIONS
-r reads data from device and send to stdout.
-w reads data from stdin and write to device.
-c reads data from stdin and from device and compares both.
-e erases device program and eeprom memory.
-b reset-pin-value
reset-pin-value must be 0 or 1. This option just changes device
reset pin logic level and exit.
-L lock-mode
set device lock bits mode. See AVR manual for details. WARNING:
in some devices, even erasing chip (-e) didn’t clear the lock
bits... so we lost the chips... use this option at your own
risk.
If lock-mode is 0, sets LB2=0; LB1=0. If lock-mode is 1, sets
LB2=0; LB1=1. If lock-mode is 2, sets LB2=1; LB1=0. If lock-
mode is 3, sets LB2=0; LB1=1.
-E eeprom memory mode. Without this option, reads, writes and
compares are made to device program memory. With this option
they are made in eeprom memory.
-d device
Without this option, avrprog will try do autodetect the device
by reading it’s signature bytes. Use this option if you want to
overide device detection. device is case sensitive and can be
any supported devices. To see supported devices try ´-d ?´
-p port-address
chooses parallel port address (hexa value). Check avrprog.conf
file for default and valid values.
-R sets AVR reset pin to 1 when exiting, enabling software
execution. Default is leave chip disabled (reset=0) when
exiting.
-v verbose mode.
-V shows program version, copyright and exit.
-h shows program help and exit.
Note: some options can’t be used at the same time with other options.
In case you specify more than one exclusive option, just one of them
will be executed. (priority b,c,r,L,e,w).
Without any options, avrprog just tries to detect the device and leaves
reset pin at 0 (software in device is halted).
EXAMPLES
avrprog -r > file.hex
Read device program memory and write it to file.hex.
avrprog -w < file.hex
Read contents of file.hex and write to program memory in device.
avrprog -w -R < file.hex
Read contents of file.hex and write to program memory in device. After
writting, starts device software execution by setting reset pin to 1.
avrprog -r -E > file.hex
Read device eeprom memory and write it to file.hex.
avrprog
Identifies the device and halts software execution.
avrprog -R
Identifies the device and starts software execution.
avrprog -b 0
Just set device reset pin to 0 (halt software execution)
avrprob -b 1
Just set device reset pin to 1 (start software execution)
INPUT AND OUTPUT FORMAT
Input and output formats are Intel Hexadecimal Object File Format You
can find this specification at
ftp://download.intel.com/support/processors/
i960/devtools/INTELHEX.PDF
Record types 00 and 01 are implemented in this version. In input
lines, LF and CR+LF are accepted as newline markers. Output files are
generated with LF as a newline marker.
FILES
/etc/avrprog/devices.conf
handles devices signatures. Human readable. Take a look and add
new devices. Don’t forget to write us the lines you added, so
next versions can have a more complete list of devices.
/etc/avrprog/avrprog.conf
general configuration file. Human readable. Handles parallel
port address.
BUGS
If you found any, please send the authors an e-mail.
TODO
Write a kernel module so this program does not need to run setuid root.
Or write a daemon and the program can connect to the daemon using tcp.
Write messages using functions that support locales.
SEE ALSO
http://www.autsens.com/avrprog
http://avrprog.sourceforge.net
AVRPROG AUTHORS
Jose Roberto B. de A. Monteiro <jrm@autsens.com>
Pedro Zorzenon Neto <pzn@autsens.com>
MANPAGE AUTHOR
This manual page was written by Pedro Zorzenon Neto <pzn@autsens.com>,
for the Debian GNU/Linux system (but may be used by others).
jun 25, 2001