import serial, time, sys, re

import argparse

import serials_find

import SerialHelper

import bootloader

from BFinitPassthrough import *

def send_bind_command(args):

dbg_print("======== SEND BIND COMMAND ========")

s = serial.Serial(port=args.port, baudrate=args.baud,

bytesize=8, parity='N', stopbits=1,

timeout=1, xonxoff=0, rtscts=0)

if args.half_duplex:

BindInitSeq = bootloader.get_bind_seq('GHST', args.type)

dbg_print(" * Using half duplex (GHST)")

else:

BindInitSeq = bootloader.get_bind_seq('CRSF', args.type)

dbg_print(" * Using full duplex (CRSF)")

s.write(BindInitSeq)

s.flush()

time.sleep(.5)

s.close()

if __name__ == '__main__':

parser = argparse.ArgumentParser(

description="Initialize BetaFlight passthrough and send the 'enter bind mode' command")

parser.add_argument("-b", "--baud", type=int, default=420000,

help="Baud rate for passthrough communication")

parser.add_argument("-p", "--port", type=str,

help="Override serial port autodetection and use PORT")

parser.add_argument("-hd", "--half-duplex", action="store_true",

dest="half_duplex", help="Use half duplex mode")

parser.add_argument("-t", "--type", type=str, default="ESP82",

help="Defines flash target type which is sent to target in reboot command")

args = parser.parse_args()

if (args.port == None):

args.port = serials_find.get_serial_port()

try:

bf_passthrough_init(args.port, args.baud)

except PassthroughEnabled as err:

dbg_print(str(err))

send_bind_command(args)