#!/bin/bash
# http://nodemcu.readthedocs.io/en/latest/en/flash/
if [ "$#" == 0 ]
then
echo "Usage: flash.sh firmware.bin"
exit 1
fi
if [ ! -f "$1" ]
then
echo "Cannot read $1"
exit 1
fi
ESP8266USB=$(ls /dev/cu.SLAB_USBtoUART)
if [ "$ESP8266USB" != "/dev/cu.SLAB_USBtoUART" ]
then
echo "ESP8266 USB not connected" 1>&2
exit 1
fi
echo "To enable ESP8266 firmware flashing GPIO0 pin must be pulled low before the device is reset"
echo "Press ENTER to continue"
read
echo "Determining flash capacity:"
esptool.py --port $ESP8266USB flash_id
echo "Press ENTER to continue"
read
echo "Erasing flash:"
esptool.py --port $ESP8266USB erase_flash
echo "Flashing:"
esptool.py --port $ESP8266USB write_flash -fm qio 0x00000 $1
echo "OK"