| /* |
| * Author: Jon Trulson <jtrulson@ics.com> |
| * 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 <unistd.h> |
| #include <string.h> |
| #include <iostream> |
| #include <signal.h> |
| #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; |
| } |