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 problems sending BIN file with XMODEM python
Hello my freinds,

i am trying to send a bin file which i already tested with teraterm before.
the reciever is an energy meter, i am connected to it by usb/rs232 converter.

when i start the XMODEM i recieve the following error:

*Read Byte: b'\x00'

send error: expected NAK, CRC, or CAN; got b'\x00'*

can anyone please help?

i am using the following code:

def sendFile():

    ser= serialPort.serialport
    print (ser)

def getc(size, timeout=8):
    gbytes =
    print(f'Read Byte: {gbytes}')
    return gbytes or None

def putc(data, timeout=8):
    pbytes = ser.write(data)
    print(f'Put Byte: {pbytes}')
    return pbytes or None

modem =XMODEM(getc,putc)
stream = open('104_new.BIN', 'rb')
buran wrote Nov-23-2019, 10:30 AM:
Please, use proper tags when post code, traceback, output, etc. This time I have added tags for you.
See BBcode help for more info.

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