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97 lines
3.4 KiB
97 lines
3.4 KiB
#!/usr/bin/python
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#
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# A tool to send a GCODE file to Marlin via a serial or USB connection.
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#
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# This tool can also exercise error correction and recovery in Marlin by
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# corrupting a fraction of the GCODE packets that are sent.
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#
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#
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# (c) 2017 Aleph Objects, Inc.
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#
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# The code in this page is free software: you can
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# redistribute it and/or modify it under the terms of the GNU
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# General Public License (GNU GPL) as published by the Free Software
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# Foundation, either version 3 of the License, or (at your option)
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# any later version. The code is distributed WITHOUT ANY WARRANTY;
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# without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
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#
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from __future__ import print_function
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from pyMarlin import *
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import argparse
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import serial
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import random
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import sys
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def load_gcode(filename):
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with open(filename, "r") as f:
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gcode = f.readlines()
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print("Read %d lines" % len(gcode))
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return gcode
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def generate_synthetic_gcode():
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gcode = []
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non_acting_gcodes = ["G90", "G91", "G92 X0 Y0 Z0", "G92 X123 Y456", "M31", "M114", "M115", "M119"]
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for i in range(1, 10000):
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which = random.randrange(0,len(non_acting_gcodes))
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gcode.append(non_acting_gcodes[which])
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return gcode
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def send_gcode_test(filename, serial):
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if filename == "TEST":
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gcode = generate_synthetic_gcode()
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else:
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gcode = load_gcode(filename)
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for i, line in enumerate(gcode):
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serial.sendCmdReliable(line)
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while(not serial.clearToSend()):
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serial.readline()
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if(i % 1000 == 0):
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print("Progress: %d" % (i*100/len(gcode)), end='\r')
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sys.stdout.flush()
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parser = argparse.ArgumentParser(description='''sends gcode to a printer while injecting errors to test error recovery.''')
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parser.add_argument('-p', '--port', help='Serial port.', default='/dev/ttyACM1')
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parser.add_argument('-f', '--fake', help='Use a fake Marlin simulation instead of serial port, for self-testing.', action='store_false', dest='port')
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parser.add_argument('-e', '--errors', help='Corrupt 1 out N lines written to exercise error recovery.', default='0', type=int)
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parser.add_argument('-r', '--readerrors', help='Corrupt 1 out N lines read to exercise error recovery.', default='0', type=int)
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parser.add_argument('-l', '--log', help='Write log file.')
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parser.add_argument('-b', '--baud', help='Sets the baud rate for the serial port.', default='115000', type=int)
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parser.add_argument('filename', help='file containing gcode, or TEST for synthetic non-printing GCODE')
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args = parser.parse_args()
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print()
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if args.port:
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print("Serial port: ", args.port)
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print("Baud rate: ", args.baud)
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sio = serial.Serial(args.port, args.baud, timeout = 3, writeTimeout = 10000)
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else:
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print("Using simulated Marlin device.")
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sio = FakeMarlinSerialDevice()
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if args.readerrors:
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print("1 out of %d lines read will be corrupted." % args.readerrors)
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sio = NoisySerialConnection(sio)
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sio.setReadErrorRate(1, args.readerrors)
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if args.log:
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print("Writing log file: ", args.log)
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sio = LoggingSerialConnection(sio, args.log)
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if args.errors:
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print("1 out of %d lines written will be corrupted." % args.errors)
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sio = NoisySerialConnection(sio)
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sio.setWriteErrorRate(1, args.errors)
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print()
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def onResendCallback(line):
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print("Resending from: %d" % (line))
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proto = MarlinSerialProtocol(sio, onResendCallback)
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send_gcode_test(args.filename, proto)
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proto.close() |