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83 lines
2.7 KiB
Python
83 lines
2.7 KiB
Python
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#!/usr/bin/python
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# Author: Zion Orent <zorent@ics.com>
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# Copyright (c) 2015 Intel Corporation.
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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import time, sys, signal, atexit
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import pyupm_ublox6 as upmUblox6
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# Instantiate a Ublox6 GPS device on uart 0.
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myGPSSensor = upmUblox6.Ublox6(0)
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## Exit handlers ##
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# This function stops python from printing a stacktrace when you hit control-C
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def SIGINTHandler(signum, frame):
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raise SystemExit
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# This function lets you run code on exit, including functions from myGPSSensor
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def exitHandler():
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print "Exiting"
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sys.exit(0)
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# Register exit handlers
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atexit.register(exitHandler)
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signal.signal(signal.SIGINT, SIGINTHandler)
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if (not myGPSSensor.setupTty(upmUblox6.cvar.int_B9600)):
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print "Failed to setup tty port parameters"
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sys.exit(0)
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# Collect and output NMEA data.
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# This device also supports numerous configuration options, which
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# you can set with writeData(). Please refer to the Ublox-6 data
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# sheet for further information on the formats of the data sent and
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# received, and the various operating modes available.
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bufferLength = 256
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nmeaBuffer = upmUblox6.charArray(bufferLength)
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def getGPSInfo():
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# we don't want the read to block in this example, so always
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# check to see if data is available first.
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if (myGPSSensor.dataAvailable()):
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rv = myGPSSensor.readData(nmeaBuffer, bufferLength)
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numlines= 0
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if (rv > 0):
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GPSData = ""
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# read only the number of characters
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# specified by myGPSSensor.readData
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for x in range(rv):
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GPSData += nmeaBuffer.__getitem__(x)
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sys.stdout.write(GPSData)
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if (rv < 0): # some sort of read error occured
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print "Port read error."
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sys.exit(0)
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while (1):
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getGPSInfo()
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time.sleep(.1)
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