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This module provides support for the VK2828U7 (ublox based) GPS module from DFRobot. It is connected via a UART, and emits NMEA data. Ideally this data could be fed to an external library like TinyGPS to parse the NMEA data and provide an easier method of extracting GPS information. Signed-off-by: Jon Trulson <jtrulson@ics.com>
81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2016 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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*/
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#include <unistd.h>
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#include <signal.h>
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#include "vk2828u7.h"
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bool shouldRun = true;
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const size_t bufferLength = 256;
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void sig_handler(int signo)
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{
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if (signo == SIGINT)
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shouldRun = false;
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}
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int main()
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{
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signal(SIGINT, sig_handler);
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//! [Interesting]
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// Instantiate a VK2828U7 sensor on uart 0 at 9600 baud with enable
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// pin on D3
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vk2828u7_context sensor = vk2828u7_init(0, 9600, 3);
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if (!sensor)
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{
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printf("vk2828u7_init() failed.\n");
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return 1;
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}
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char buffer[bufferLength];
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int rv = 0;
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// loop, dumping NMEA data out as fast as it comes in
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while (shouldRun && vk2828u7_data_available(sensor, 5000))
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{
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if ((rv = vk2828u7_read(sensor, buffer, bufferLength)) >= 0)
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{
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int i;
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for (i=0; i<rv; i++)
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printf("%c", buffer[i]);
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}
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}
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if (shouldRun)
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printf("Timed out\n");
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//! [Interesting]
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printf("Exiting\n");
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vk2828u7_close(sensor);
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return 0;
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}
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