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Catch timeout exceptions when printing via USB

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If the firmware froze or something...
This commit is contained in:
Ghostkeeper 2018-03-07 11:30:36 +01:00
parent ecfb62b69e
commit 507de9c22c
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GPG key ID: 5252B696FB5E7C7A
1 changed files with 7 additions and 4 deletions
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11
plugins/USBPrinting/USBPrinterOutputDevice.py
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@ -1,4 +1,4 @@
# Copyright (c) 2016 Ultimaker B.V.
# Copyright (c) 2018 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
from UM.Logger import Logger
@ -17,7 +17,7 @@ from .avr_isp import stk500v2, intelHex
from PyQt5.QtCore import pyqtSlot, pyqtSignal, pyqtProperty
from serial import Serial, SerialException
from serial import Serial, SerialException, SerialTimeoutException
from threading import Thread
from time import time, sleep
from queue import Queue
@ -266,8 +266,11 @@ class USBPrinterOutputDevice(PrinterOutputDevice):
command = (command + "\n").encode()
if not command.endswith(b"\n"):
command += b"\n"
self._serial.write(b"\n")
self._serial.write(command)
try:
self._serial.write(b"\n")
self._serial.write(command)
except SerialTimeoutException:
Logger.log("w", "Timeout when sending command to printer via USB.")
def _update(self):
while self._connection_state == ConnectionState.connected and self._serial is not None: