61 lines
1.8 KiB
Python
Executable File
61 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from __future__ import absolute_import, division, print_function
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import serial
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import sys
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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=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 (%i): " % self.port.inWaiting(), end='')
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sys.stdout.flush()
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while True:
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byte = self.port.read()
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print(".", end='')
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sys.stdout.flush()
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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='')
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sys.stdout.flush()
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msg = b''
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ctr = 0
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while True:
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print("%i>" % self.port.inWaiting(), end='')
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sys.stdout.flush()
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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='')
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sys.stdout.flush()
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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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