2015-02-25 09:09:40 -08:00
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/*
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* Author: Jon Trulson <jtrulson@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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*/
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#include <unistd.h>
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2015-06-10 14:34:05 -06:00
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#include <string.h>
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2015-02-25 09:09:40 -08:00
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#include <iostream>
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#include <signal.h>
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#include "hmtrp.h"
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using namespace std;
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bool shouldRun = true;
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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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void printUsage()
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{
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cout << "Usage:" << endl;
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cout << "Pass a commandline argument (any argument) to this program"
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<< endl;
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cout << "to query the radio configuration and output it. NOTE: the"
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<< endl;
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cout << "radio must be in CONFIG mode for this to work."
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<< endl;
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cout << endl;
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cout << "Running this program without arguments will simply transmit"
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<< endl;
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cout << "'Hello World!' every second, and output any data received from"
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<< endl;
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cout << "another radio."
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<< endl;
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cout << endl;
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}
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const size_t bufferLength = 256;
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int main (int argc, char **argv)
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{
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signal(SIGINT, sig_handler);
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//! [Interesting]
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// Instantiate a HMTRP radio device on uart 0
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upm::HMTRP* radio = new upm::HMTRP(0);
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// make sure port is initialized properly. 9600 baud is the default.
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if (!radio->setupTty(B9600))
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{
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cerr << "Failed to setup tty port parameters" << endl;
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return 1;
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}
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printUsage();
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// By default, this radio simply transmits data sent via writeData()
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// and reads any available data via readData().
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// It can be placed into a configuration mode by grounding the
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// CONFIG pin on the module. When this is done, the various
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// configuration query and config methods can be used. In this
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// example, by default, we just read any data available fom the
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// device, and periodically transmit "Hello World".
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// If any argument was specified on the command line, do a simple
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// configuration query and output the results. The radio must be in
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// CONFIG mode for this to work.
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if (argc > 1)
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{
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// config mode
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uint32_t freq;
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uint32_t dataRate;
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uint16_t rxBandwidth;
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uint8_t modulation;
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uint8_t txPower;
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uint32_t uartBaud;
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if (radio->getConfig(&freq, &dataRate, &rxBandwidth, &modulation,
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&txPower, &uartBaud))
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{
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cout << "Radio configuration:" << endl;
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cout << "freq: " << freq << " dataRate: " << dataRate
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<< " rxBandwidth: " << rxBandwidth << "Khz" << endl;
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cout << "modulation: " << int(modulation) << "Khz txPower: "
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<< int(txPower) << " uartBaud: " << uartBaud << endl;
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}
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else
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{
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cerr << "getConfig() failed. Make sure the radio is in "
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<< "CONFIG mode." << endl;
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}
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}
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else
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{
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// normal read/write mode
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char radioBuffer[bufferLength];
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int counter = 0;
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cout << "Running in normal read/write mode." << endl;
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while (shouldRun)
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{
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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 (radio->dataAvailable())
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{
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2015-06-10 14:34:05 -06:00
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memset(radioBuffer, 0, bufferLength);
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int rv = radio->readData(radioBuffer, bufferLength - 1);
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2015-02-25 09:09:40 -08:00
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if (rv > 0)
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cout << "Received: " << radioBuffer << endl;
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if (rv < 0) // some sort of read error occured
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{
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cerr << "Port read error." << endl;
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break;
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}
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continue;
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}
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usleep(100000); // 100ms
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counter++;
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// every second, transmit "Hello World"
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if (counter > 10)
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{
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static const char *hello = "Hello World!";
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cout << "Transmitting hello world..." << endl;
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radio->writeData((char *)hello, strlen(hello) + 1);
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counter = 0;
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}
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}
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}
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//! [Interesting]
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cout << "Exiting..." << endl;
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delete radio;
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return 0;
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}
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