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|
#!/bin/sh
SYSFSPATH=/sys/class/gpio
# defaults
RESET_INVERT=0
BOOT0_INVERT=0
FIRMWARE=/usr/local/share/mule/mule.dfu
die() {
echo "$*" 1>&2
exit 1
}
usage() {
echo "Usage: $0 [--reset|--dfu|--disable|--flash [<firmwarea>]]"
echo " --reset - resets the Cortex M0"
echo " --dfu - enables DFU loader"
echo " --disable - keep Cortex M0 in reset"
echo " --flash [<firmware>] - flash the given firmware"
exit 1
}
gpiosetup() {
for PIN in ${RESET_PIN},${RESET_INVERT} ${BOOT0_PIN},${BOOT0_INVERT}
do
PINNUM=$(echo "$PIN" | cut -d',' -f1)
INVERT=$(echo "$PIN" | cut -d',' -f2)
if [ ! -d "${SYSFSPATH}/gpio${PINNUM}" ] ; then
echo "${PINNUM}" > "${SYSFSPATH}/export"
fi
echo out > "${SYSFSPATH}/gpio${PINNUM}/direction"
echo "${INVERT}" > "${SYSFSPATH}/gpio${PINNUM}/active_low"
done
}
reset_stm32() {
echo 0 > "${SYSFSPATH}/gpio${RESET_PIN}/value"
echo 0 > "${SYSFSPATH}/gpio${BOOT0_PIN}/value"
sleep 0.1
echo 1 > "${SYSFSPATH}/gpio${RESET_PIN}/value"
}
enable_dfu() {
gpiosetup
echo 0 > "${SYSFSPATH}/gpio${RESET_PIN}/value"
echo 1 > "${SYSFSPATH}/gpio${BOOT0_PIN}/value"
sleep 0.1
echo 1 > "${SYSFSPATH}/gpio${RESET_PIN}/value"
}
[ -f /proc/device-tree/model ] || die "can't determine hardware version"
MODEL=$(tr -d '\000' < /proc/device-tree/model)
case "$MODEL" in
"Theobroma Systems A31 Pangolin")
RESET_PIN=90
BOOT0_PIN=67
;;
"Theobroma Systems A80 Armadillo")
RESET_PIN=128
BOOT0_PIN=129
;;
"Theobroma Systems A64-uQ7 SoM")
RESET_PIN=195
BOOT0_PIN=197
;;
"Theobroma Systems RK3399-Q7 SoM"*)
RESET_PIN=56
BOOT0_PIN=76
RESET_INVERT=1
BOOT0_INVERT=1
;;
"Theobroma Systems PX30-uQ7 SoM"*|"Theobroma Systems PX30-µQ7 SoM"*)
RESET_PIN=100
BOOT0_PIN=101
;;
*)
die "${MODEL} not supported"
;;
esac
case "$1" in
--reset) echo "reseting Cortex M0"
gpiosetup
reset_stm32
;;
--dfu) echo "enabling DFU loader"
gpiosetup
enable_dfu
;;
--disable) echo "disabling Cortex M0"
gpiosetup
echo 0 > ${SYSFSPATH}/gpio${RESET_PIN}/value
;;
--flash)
if [ $# -eq 2 ] ; then
[ -f "$2" ] || die "flash file ${2} does not exist"
FIRMWARE=$2
elif [ $# -gt 2 ] ; then
usage
fi
command -v dfu-util >/dev/null 2>&1 || die "dfu-util needed but not found"
echo "flashing Cortex M0"
gpiosetup
enable_dfu
echo waiting for DFU loader
if command -v lsusb >/dev/null 2>&1; then
while ! lsusb -d 0483:df11 > /dev/null
do
sleep .1
printf .
done
printf "\nfound"
else
sleep 5
fi
dfu-util -a 0 -D "${FIRMWARE}"
reset_stm32
;;
--*) usage
;;
*) usage
;;
esac
exit 0
|
