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