58 lines
1.5 KiB
Bash
58 lines
1.5 KiB
Bash
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#!/bin/bash
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# Copyright 2017 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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FLAGS_timeout=600
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IMG=${1:-tigertail.bin}
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echo "Flashing ${IMG}"
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error() {
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printf "%s\n" "$*" >&2
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}
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die() {
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[[ "$#*" == "0" ]] || error "$@"
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exit 1
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}
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flash_stm32_dfu() {
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local DFU_DEVICE=0483:df11
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local ADDR=0x08000000
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[[ -e "${IMG}" ]] || die "File ${IMG} not found!"
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# Check for a suitable local dfu-util
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local LOCAL_DFU_UTIL=$(which dfu-util)
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if [[ -n "${LOCAL_DFU_UTIL}" ]]; then
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DFU_VERSION=$("${LOCAL_DFU_UTIL}" -V | head -n1 | cut -d' ' -f2)
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if [[ "${DFU_VERSION}" < "0.7" ]]; then
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LOCAL_DFU_UTIL=""
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fi
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fi
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local DFU_UTIL=${LOCAL_DFU_UTIL:-'./dfu-util'}
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which "${DFU_UTIL}" &> /dev/null || die \
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"no dfu-util util found. Did you 'sudo emerge dfu-util'."
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local dev_cnt=$(lsusb -d "${DFU_DEVICE}" | wc -l)
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if [ $dev_cnt -eq 0 ] ; then
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die "unable to locate dfu device at ${DFU_DEVICE}."
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elif [ $dev_cnt -ne 1 ] ; then
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die "too many dfu devices (${dev_cnt}). Disconnect all but one."
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fi
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local SIZE=$(wc -c "${IMG}" | cut -d' ' -f1)
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# Remove read protection.
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sudo timeout -k 10 -s 9 "${FLAGS_timeout}" \
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${DFU_UTIL} -a 0 -s ${ADDR}:${SIZE}:force:unprotect -D "${IMG}"
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# Wait for mass-erase and reboot after unprotection.
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sleep 1
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# Actual image flashing.
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sudo timeout -k 10 -s 9 "${FLAGS_timeout}" \
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$DFU_UTIL -a 0 -s ${ADDR}:${SIZE} -D "${IMG}"
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}
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flash_stm32_dfu
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