/* * Author: Jon Trulson * Copyright (c) 2015 Intel Corporation. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include #include #include #include #include "hmtrp.h" using namespace std; bool shouldRun = true; void sig_handler(int signo) { if (signo == SIGINT) shouldRun = false; } void printUsage() { cout << "Usage:" << endl; cout << "Pass a commandline argument (any argument) to this program" << endl; cout << "to query the radio configuration and output it. NOTE: the" << endl; cout << "radio must be in CONFIG mode for this to work." << endl; cout << endl; cout << "Running this program without arguments will simply transmit" << endl; cout << "'Hello World!' every second, and output any data received from" << endl; cout << "another radio." << endl; cout << endl; } const size_t bufferLength = 256; int main (int argc, char **argv) { signal(SIGINT, sig_handler); //! [Interesting] // Instantiate a HMTRP radio device on uart 0 upm::HMTRP* radio = new upm::HMTRP(0); // make sure port is initialized properly. 9600 baud is the default. if (!radio->setupTty(B9600)) { cerr << "Failed to setup tty port parameters" << endl; return 1; } printUsage(); // By default, this radio simply transmits data sent via writeData() // and reads any available data via readData(). // It can be placed into a configuration mode by grounding the // CONFIG pin on the module. When this is done, the various // configuration query and config methods can be used. In this // example, by default, we just read any data available fom the // device, and periodically transmit "Hello World". // If any argument was specified on the command line, do a simple // configuration query and output the results. The radio must be in // CONFIG mode for this to work. if (argc > 1) { // config mode uint32_t freq; uint32_t dataRate; uint16_t rxBandwidth; uint8_t modulation; uint8_t txPower; uint32_t uartBaud; if (radio->getConfig(&freq, &dataRate, &rxBandwidth, &modulation, &txPower, &uartBaud)) { cout << "Radio configuration:" << endl; cout << "freq: " << freq << " dataRate: " << dataRate << " rxBandwidth: " << rxBandwidth << "Khz" << endl; cout << "modulation: " << int(modulation) << "Khz txPower: " << int(txPower) << " uartBaud: " << uartBaud << endl; } else { cerr << "getConfig() failed. Make sure the radio is in " << "CONFIG mode." << endl; } } else { // normal read/write mode char radioBuffer[bufferLength]; int counter = 0; cout << "Running in normal read/write mode." << endl; while (shouldRun) { // we don't want the read to block in this example, so always // check to see if data is available first. if (radio->dataAvailable()) { memset(radioBuffer, 0, bufferLength); int rv = radio->readData(radioBuffer, bufferLength - 1); if (rv > 0) cout << "Received: " << radioBuffer << endl; if (rv < 0) // some sort of read error occured { cerr << "Port read error." << endl; break; } continue; } usleep(100000); // 100ms counter++; // every second, transmit "Hello World" if (counter > 10) { static const char *hello = "Hello World!"; cout << "Transmitting hello world..." << endl; radio->writeData((char *)hello, strlen(hello) + 1); counter = 0; } } } //! [Interesting] cout << "Exiting..." << endl; delete radio; return 0; }