Uploads DFU OTA bootloader to bluey board

bluey-upload.py

"""
    upload.py

    Uploads DFU OTA bootloader to bluey board.

    Electronut Labs
    electronut.in

"""

import sys
import os

# main() function
def main():
    # use sys.argv if needed
    if len(sys.argv) < 2:
        print('Usage: python upload.py PORT')
        exit(0)
    port = sys.argv[1]

    # for stupid windows systems
    # For ports >= COM10, add the prefix \\.\, for example:
    # target extended-remote COM3
    # target extended-remote \\.\COM10
    if port.startswith("COM"):
        n = int(port[port.find("COM")+3:])
        if n >= 10:
            port = "\\\\.\\" + port

    print("Using %s..." % (port, ))

    # create GDB cmd file
    f = open("bluey_boot.gdb", "w")
    f.write("target extended-remote %s\n" %(port, ))
    f.write("monitor swdp_scan\n")
    f.write("attach 1\n")
    f.write("load out.hex\n")
    f.write("detach\n")
    f.write("quit\n")
    f.close()
    print("created bluey_boot.gdb...")

    print("running: arm-none-eabi-gdb -x bluey_boot.gdb...")
    os.system("arm-none-eabi-gdb -x bluey_boot.gdb")

    print("cleaning up...")
    os.remove("bluey_boot.gdb")

    print("done.")

# call main
if __name__ == '__main__':
    main()