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