2015-10-08 14:30:12 +03:00
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/*
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* Author: Stefan Andritoiu <stefan.andritoiu@intel.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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//NOT TESTED!!!
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2018-02-27 12:12:09 -08:00
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public class HMTRP_Example {
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2015-10-08 14:30:12 +03:00
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static private final int bufferLength = 255;
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private static void printUsage() {
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System.out.println("Usage:");
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System.out.println("Pass a commandline argument (any argument) to this program");
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System.out.println("to query the radio configuration and output it. NOTE: the");
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System.out.println("radio must be in CONFIG mode for this to work.");
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System.out.println("Running this program without arguments will simply transmit");
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System.out.println("'Hello World!' every second, and output any data received from");
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System.out.println("another radio.");
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}
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public static void main(String[] args) throws InterruptedException {
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// ! [Interesting]
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// Instantiate a HMTRP radio device on uart 0
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upm_hmtrp.HMTRP radio = new upm_hmtrp.HMTRP(0);
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// make sure port is initialized properly. 9600 baud is the default.
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if (!radio.setupTty()) {
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System.err.println("Failed to setup tty port parameters");
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System.exit(-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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2017-04-28 11:39:57 -07:00
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// configuration query and output the results. The radio must be in
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2015-10-08 14:30:12 +03:00
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// CONFIG mode for this to work.
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if (args.length > 0) {
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// config mode
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long[] freq = {0};
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long[] dataRate = {0};
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int[] rxBandwidth = {0};
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short[] modulation = {0};
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short[] txPower = {0};
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long[] uartBaud = {0};
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if (radio.getConfig(freq, dataRate, rxBandwidth, modulation, txPower, uartBaud)) {
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System.out.println("Radio configuration:");
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System.out.println("freq: " + freq[0] + " dataRate: " + dataRate[0]
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+ " rxBandwidth: " + rxBandwidth[0] + "Khz");
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System.out.println("modulation: " + modulation[0] + "Khz txPower: " + txPower[0]
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+ " uartBaud: " + uartBaud[0]);
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} else {
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System.err.println("getConfig() failed. Make sure the radio is in CONFIG mode.");
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}
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} else {
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// normal read/write mode
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byte[] radioBuffer = new byte[bufferLength];
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byte[] hello = "Hello World".getBytes();
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int counter = 0;
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System.out.println("Running in normal read/write mode.");
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while (true) {
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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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int rv = radio.readData(radioBuffer);
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if (rv > 0) {
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System.out.print("Received: ");
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for (int i = 0; i < radioBuffer.length; i++)
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System.out.print((char) radioBuffer[i]);
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System.out.println();
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} else {
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System.err.println("Port read error.");
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break;
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}
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continue;
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}
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Thread.sleep(100);
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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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System.out.println("Transmitting hello world...");
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radio.writeData(hello);
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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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}
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}
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