mirror of
https://github.com/RobotechLille/cdf2018-principal
synced 2024-05-05 13:21:45 +00:00
50 lines
1.6 KiB
Python
50 lines
1.6 KiB
Python
#!/usr/bin/env python
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from __future__ import print_function
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import serial
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import os.path
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import argparse
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from time import sleep
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pyserial_version = None
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try:
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pyserial_version = int(serial.VERSION[0])
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except:
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pyserial_version = 2 # less than 2.3
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parser = argparse.ArgumentParser(description='Reset an Arduino')
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parser.add_argument('--caterina', action='store_true', help='Reset a Leonardo, Micro, Robot or LilyPadUSB.')
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parser.add_argument('--verbose', action='store_true', help="Watch what's going on on STDERR.")
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parser.add_argument('--period', default=0.1, help='Specify the DTR pulse width in seconds.')
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parser.add_argument('port', nargs=1, help='Serial device e.g. /dev/ttyACM0')
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args = parser.parse_args()
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if args.caterina:
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if args.verbose: print('Forcing reset using 1200bps open/close on port %s' % args.port[0])
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ser = serial.Serial(args.port[0], 57600)
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ser.close()
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if pyserial_version < 3:
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ser.setBaudrate (1200)
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else:
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ser.baudrate = 1200
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ser.open()
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ser.setRTS(True) # RTS line needs to be held high and DTR low
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ser.setDTR(False) # (see Arduino IDE source code)
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ser.close()
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sleep(1)
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while not os.path.exists(args.port[0]):
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if args.verbose: print('Waiting for %s to come back' % args.port[0])
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sleep(1)
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if args.verbose: print('%s has come back after reset' % args.port[0])
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else:
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if args.verbose: print('Setting DTR high on %s for %ss' % (args.port[0],args.period))
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ser = serial.Serial(args.port[0], 115200)
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ser.setDTR(False)
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sleep(args.period)
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ser.setDTR(True)
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ser.close()
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