52 lines
1.6 KiB
Python
Executable File
52 lines
1.6 KiB
Python
Executable File
#!/bin/env python3
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# -*- coding: utf-8 -*-
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import serial
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import IPTCMessage
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class _main(object):
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def __init__(self, port='/dev/tty706'):
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self.openPort(port)
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while True:
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msg = self.waitForStart()
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msg += self.readUntilEOM()
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print("This is the message: %s" % repr(msg))
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def openPort(self, port):
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self.port = serial.Serial(port, baudrate=4800, bytesize=serial.EIGHTBITS, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, timeout=None)
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print("%s opened with %i baud. Timeout is %s seconds." % (self.port.name, self.port.baudrate, self.port.timeout))
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def waitForStart(self):
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print("Waiting for start indicator: ", end='', flush=True)
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while True:
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byte = self.port.read()
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print(".", end='', flush=True)
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if byte == b'\x01':
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print("Found.")
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return byte
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def readUntilEOM(self):
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print("Reading data until EOM.", end='', flush=True)
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msg = b''
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ctr = 0
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while True:
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byte = self.port.read()
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ctr+=1
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if ctr % 10 is 0:
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print(".", end='', flush=True)
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if byte == b'\x01':
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print("PROBLEM: Got start indicator, but message not yet finished.")
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break
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msg += byte
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if byte == b'\x04':
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break
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print("Got %i bytes." % len(msg))
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return msg
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def readLine(self):
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rcv = self.port.readline()
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print("Got: %s" % repr(rcv))
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if __name__=='__main__':
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_main()
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