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# Copyright 2019 Dan Clemmensen <DanClemmensen@Gmail.com>
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#
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# Read the initial response from an FT-65 or FT-4 radio and print it.
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# This response is assumed to be some sort of radio type ID.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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Version string reader for Yaesu FT-4 and FT-65 radios.
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Works on Python 2 and Python 3.
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"""
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import serial
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import os
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import time
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import sys
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def sendcmd(pipe, cmd):
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"""
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send a command bytelist to radio,receive and return the resulting bytelist.
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Input: pipe - serial port object to use
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cmd - bytes to send
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This cable is "two-wire": The TxD and RxD are "or'ed" so we receive
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whatever we send and then whatever response the radio sends. We check the
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echo and strip it, then read characters one at a time until we get an ack.
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"""
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pipe.write(cmd)
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echo = pipe.read(len(cmd))
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if echo != cmd:
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msg = "Bad echo. Sent:" + repr(cmd) + ", "
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msg += "Received:" + repr(echo)
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print(msg)
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raise ("Incorrect echo on serial port.")
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response = b""
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i = 0
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toolong = 256 # arbitrary
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while True:
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b = pipe.read(1)
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if b == b'\x06':
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break
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else:
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response += b
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i += 1
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if i > toolong:
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LOG.debug("Response too long. got" + repr(response))
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raise ("Response too long.")
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return(response)
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# main program
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port = sys.argv[1] #get serial port name from commandline
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try:
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pipe = serial.Serial(port, 9600, timeout=4)
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pipe.dtr = True
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pipe.flushInput()
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pipe.flushOutput()
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except Exception as e:
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print("failed to open serial port %s" %port)
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print('should be e.g. "com0" on Windows or e.g. "/dev/ttyUSB0" on Linux')
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raise e
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print("turn radio on")
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time.sleep(3)
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pipe.flushInput()
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pipe.flushOutput()
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if b"QX" != sendcmd(pipe, b"PROGRAM"):
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raise errors.RadioError("expected QX from radio.")
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version = sendcmd(pipe, b'\x02')
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sendcmd(pipe, b"END")
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pipe.close()
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print("Version= %s" % repr(version))
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print("turn radio off")
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