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+--- Thread: How to stop Xmodem after bin file transfer was finished (/thread-22799.html)
How to stop Xmodem after bin file transfer was finished - shaya2103 - Nov-27-2019
hello freinds,
I am sending a BIN file successfully to my energy meter through serial port using the code in the bottom. My problem is that Xmodem doesn't stop after all 128 blocks where sent and i have no idea how to break from it and communicate again with my meter.
Please your kind help.
def sendFile():
fileSize = os.path.getsize('104_new.BIN')
total = math.ceil(fileSize /128)
ser= serialPort.serialport
ser.flushInput()
print (ser)
def getc(size, timeout=0):
gbytes = ser.read(1)
#sleep(0.008)
print(f'Read Byte: {gbytes}')
return gbytes or None
def putc(data, timeout=0):
pbytes = ser.write(data)
sleep(0.2)
print(f'Put Byte: {pbytes}')
return pbytes or None
modem =XMODEM(getc,putc)
f = open('104_new.BIN', "rb")
modem.send(f,retry=50,callback=total)
f.close()
ser.close()
ser.flushOutput()
senddata_edit.insert(0,'scan\r')this is the error code i get:Error:send error: expected ACK; got None
Exception in thread Thread-2:
Traceback (most recent call last):
File "C:\Users\shay\AppData\Local\Programs\Python\Python37-32\lib\threading.py", line 926, in _bootstrap_inner
self.run()
File "C:\Users\shay\AppData\Local\Programs\Python\Python37-32\lib\threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "C:\PythonTerminal-master\PythonTerminal-master\mainpy2.py", line 211, in sendFile
status= modem.send(f,retry=50,timeout=0)
File "C:\Users\shay\AppData\Local\Programs\Python\Python37-32\lib\site-packages\xmodem\__init__.py", line 349, in send
self.putc(EOT)
File "C:\PythonTerminal-master\PythonTerminal-master\mainpy2.py", line 203, in putc
pbytes = ser.write(data)
File "C:\Users\shay\AppData\Local\Programs\Python\Python37-32\lib\site-packages\serial\serialwin32.py", line 315, in write
raise SerialException("WriteFile failed ({!r})".format(ctypes.WinError()))
serial.serialutil.SerialException: WriteFile failed (OSError(9, 'The handle is invalid.', None, 6))