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- #! /bin/bash
- #
- # Flash an AVR with optiboot using the meta-id built-in programmer
- # Basically we first reset the AVR and get in sync, and then send the hex file
- #
- # ----------------------------------------------------------------------------
- # "THE BEER-WARE LICENSE" (Revision 42):
- # Thorsten von Eicken wrote this file. As long as you retain
- # this notice you can do whatever you want with this stuff. If we meet some day,
- # and you think this stuff is worth it, you can buy me a beer in return.
- # ----------------------------------------------------------------------------
- show_help() {
- cat <<EOT
- Usage: ${0##*/} [-options...] hostname sketch.hex
- Flash the AVR running optiboot attached to meta-id with the sketch.
- -v Be verbose
- -h show this help
- Example: ${0##*/} -v meta-id mysketch.hex
- ${0##*/} 192.168.4.1 mysketch.hex
- EOT
- }
- if ! which curl >/dev/null; then
- echo "ERROR: Cannot find curl: it is required for this script." >&2
- exit 1
- fi
- start=`date +%s`
- # ===== Parse arguments
- verbose=
- while getopts "hvx:" opt; do
- case "$opt" in
- h) show_help; exit 0 ;;
- v) verbose=1 ;;
- x) foo="$OPTARG" ;;
- '?') show_help >&2; exit 1 ;;
- esac
- done
- # Shift off the options and optional --.
- shift "$((OPTIND-1))"
- # Get the fixed arguments
- if [[ $# != 2 ]]; then
- show_help >&2
- exit 1
- fi
- hostname=$1
- hex=$2
- re='[-A-Za-z0-9.]+'
- if [[ ! "$hostname" =~ $re ]]; then
- echo "ERROR: hostname ${hostname} is not a valid hostname or ip address" >&2
- exit 1
- fi
- if [[ ! -r "$hex" ]]; then
- echo "ERROR: cannot read hex file ($hex)" >&2
- exit 1
- fi
- # ===== Get AVR in sync
- [[ -n "$verbose" ]] && echo "Resetting AVR with http://$hostname/pgm/sync" >&2
- v=; [[ -n "$verbose" ]] && v=-v
- sync=`curl -m 10 $v -s -w '%{http_code}' -XPOST "http://$hostname/pgm/sync"`
- if [[ $? != 0 || "$sync" != 204 ]]; then
- echo "Error resetting AVR" >&2
- exit 1
- fi
- while true; do
- sync=`curl -m 10 $v -s "http://$hostname/pgm/sync"`
- if [[ $? != 0 ]]; then
- echo "Error checking sync" >&2
- exit 1
- fi
- case "$sync" in
- SYNC*)
- echo "AVR in $sync" >&2
- break;;
- "NOT READY"*)
- [[ -n "$verbose" ]] && echo " Waiting for sync..." >&2
- ;;
- *)
- echo "Error checking sync: $sync" >&2
- exit 1
- ;;
- esac
- sleep 0.1
- done
- # ===== Send HEX file
- [[ -n "$verbose" ]] && echo "Sending HEX file for programming" >&2
- sync=`curl -m 10 $v -s -g -d "@$hex" "http://$hostname/pgm/upload"`
- echo $sync
- if [[ $? != 0 || ! "$sync" =~ ^Success ]]; then
- echo "Error programming AVR" >&2
- exit 1
- fi
- sec=$(( `date +%s` - $start ))
- echo "Success, took $sec seconds" >&2
- exit 0
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