examples/java: Port examples containing [Interesting] tag from C/C++
Signed-off-by: Petre Eftime <petre.p.eftime@intel.com> Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
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Brendan Le Foll
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45
examples/java/AioA0.java
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45
examples/java/AioA0.java
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/*
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* Author: Nandkishor Sonar
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* Copyright (c) 2014 Intel Corporation.
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* Author: Petre Eftime <petre.p.eftime@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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//! [Interesting]
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import mraa.Aio;
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public class AioA0 {
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public static void main(String[] args) {
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Aio a0 = new Aio(0);
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while (true) {
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int adc_value = a0.read();
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float adc_value_float = a0.readFloat();
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System.out.println(String.format("ADC A0 read %X - %d", adc_value, adc_value));
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System.out.println(String.format("ADC A0 read %.5f", adc_value_float));
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}
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}
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}
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//! [Interesting]
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72
examples/java/BlinkIO.java
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72
examples/java/BlinkIO.java
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/*
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* Author: Brendan Le Foll <brendan.le.foll@intel.com>
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* Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
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* Copyright (c) 2014 Intel Corporation.
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* Author: Petre Eftime <petre.p.eftime@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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import mraa.Dir;
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import mraa.Gpio;
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import mraa.Result;
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import mraa.mraa;
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public class BlinkIO {
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static {
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try {
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System.loadLibrary("mraajava");
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} catch (UnsatisfiedLinkError e) {
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System.err.println(
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"Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
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e);
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System.exit(1);
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}
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}
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final static int DEFAULT_IOPIN = 8;
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public static void main(String argv[]) throws InterruptedException {
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int iopin = DEFAULT_IOPIN;
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if (argv.length == 0) {
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System.out.println("Provide an int arg if you want to flash on something other than " + DEFAULT_IOPIN);
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} else {
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iopin = Integer.valueOf(argv[0], DEFAULT_IOPIN);
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}
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//! [Interesting]
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Gpio gpio = new Gpio(iopin);
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Result result = gpio.dir(Dir.DIR_OUT);
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if (result != Result.SUCCESS) {
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mraa.printError(result);
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System.exit(1);
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}
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while (true) {
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gpio.write(1);
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Thread.sleep(1000);
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gpio.write(0);
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Thread.sleep(1000);
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}
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//! [Interesting]
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}
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}
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60
examples/java/GpioMmapped.java
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60
examples/java/GpioMmapped.java
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/*
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* Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
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* Copyright (c) 2014 Intel Corporation.
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* Author: Petre Eftime <petre.p.eftime@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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import mraa.Gpio;
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import mraa.mraa;
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public class GpioMmapped {
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static {
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try {
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System.loadLibrary("mraajava");
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} catch (UnsatisfiedLinkError e) {
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System.err.println(
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"Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
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e);
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System.exit(1);
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}
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}
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public static void main(String argv[]) throws InterruptedException {
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//! [Interesting]
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String board = mraa.getPlatformName();
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String version = mraa.getVersion();
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System.out.println("hello mraa");
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System.out.println(String.format("Version: %s", version));
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Gpio gpio = new Gpio(1);
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gpio.useMmap(true);
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while (true) {
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gpio.write(1);
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Thread.sleep(50);
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gpio.write(0);
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Thread.sleep(50);
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}
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//! [Interesting]
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};
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}
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73
examples/java/HelloEdison.java
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73
examples/java/HelloEdison.java
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/*
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* Author: Brendan Le Foll <brendan.le.foll@intel.com>
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* Author: Petre Eftime <petre.p.eftime@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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//! [Interesting]
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import mraa.Dir;
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import mraa.Gpio;
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import mraa.IntelEdison;
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import mraa.mraa;
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import mraa.Platform;
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import mraa.Result;
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public class HelloEdison {
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static {
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try {
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System.loadLibrary("mraajava");
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} catch (UnsatisfiedLinkError e) {
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System.err.println(
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"Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
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e);
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System.exit(1);
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}
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}
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public static void main(String argv[]) {
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Platform platform = mraa.getPlatformType();
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if (platform != Platform.INTEL_EDISON_FAB_C) {
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System.err.println("Error: This program can only be run on edison");
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System.exit(Result.ERROR_INVALID_PLATFORM.swigValue());
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}
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/*
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* MRAA_INTEL_EDISON_GP182 == 0, so this will initialise pin0 on arduino,
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* which is hardware GPIO 130 and not 182
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* We set the owner to false here, this makes sure that we do not close the
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* gpio from sysfs in mraa_gpio_close meaning it will stay as an output and
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* we will not always transition from 0->1 as gpio182 as output has the
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* default position of '0'. Note that the value could change as a result of
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* a mraa_gpio_dir however meaning we always go from 0->1 or 1->0
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*/
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Gpio gpio182 = new Gpio(IntelEdison.INTEL_EDISON_GP182.swigValue(), false);
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gpio182.dir(Dir.DIR_OUT);
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int val = gpio182.read();
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System.out.println(String.format("GPIO%d (mraa pin %d) was: %d, will set to %d\n", 182,
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gpio182.getPin(), val, val == 0 ? 1 : 0));
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gpio182.write(val == 0 ? 1 : 0);
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};
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}
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//! [Interesting]
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135
examples/java/I2cCompass.java
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135
examples/java/I2cCompass.java
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@@ -0,0 +1,135 @@
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/*
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* Author: Brendan Le Foll <brendan.le.foll@intel.com>
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* Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
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* Copyright (c) 2014 Intel Corporation.
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* Author: Petre Eftime <petre.p.eftime@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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import mraa.I2c;
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public class I2cCompass {
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static {
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try {
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System.loadLibrary("mraajava");
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} catch (UnsatisfiedLinkError e) {
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System.err.println(
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"Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
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e);
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System.exit(1);
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}
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}
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final static byte MAX_BUFFER_LENGTH = 6;
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final static byte CONF_BUFFER_LENGTH = 2;
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final static short HMC5883L_I2C_ADDR = 0x1E;
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// configuration registers
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final static byte HMC5883L_CONF_REG_A = 0x00;
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final static byte HMC5883L_CONF_REG_B = 0x01;
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// mode register
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final static byte HMC5883L_MODE_REG = 0x02;
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// data register
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final static byte HMC5883L_X_MSB_REG = 0;
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final static byte HMC5883L_X_LSB_REG = 1;
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final static byte HMC5883L_Z_MSB_REG = 2;
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final static byte HMC5883L_Z_LSB_REG = 3;
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final static byte HMC5883L_Y_MSB_REG = 4;
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final static byte HMC5883L_Y_LSB_REG = 5;
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final static byte DATA_REG_SIZE = 6;
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// status register
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final static byte HMC5883L_STATUS_REG = 0x09;
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// ID registers
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final static byte HMC5883L_ID_A_REG = 0x0A;
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final static byte HMC5883L_ID_B_REG = 0x0B;
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final static byte HMC5883L_ID_C_REG = 0x0C;
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final static byte HMC5883L_CONT_MODE = 0x00;
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final static byte HMC5883L_DATA_REG = 0x03;
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// scales
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final static byte GA_0_88_REG = ((byte) (0x00 << 5));
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final static byte GA_1_3_REG = ((byte) (0x01 << 5));
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final static byte GA_1_9_REG = ((byte) (0x02 << 5));
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final static byte GA_2_5_REG = ((byte) (0x03 << 5));
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final static byte GA_4_0_REG = ((byte) (0x04 << 5));
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final static byte GA_4_7_REG = ((byte) (0x05 << 5));
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final static byte GA_5_6_REG = ((byte) (0x06 << 5));
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final static byte GA_8_1_REG = ((byte) (0x07 << 5));
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// digital resolutions
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final static float SCALE_0_73_MG = 0.73f;
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final static float SCALE_0_92_MG = 0.92f;
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final static float SCALE_1_22_MG = 1.22f;
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final static float SCALE_1_52_MG = 1.52f;
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final static float SCALE_2_27_MG = 2.27f;
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final static float SCALE_2_56_MG = 2.56f;
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final static float SCALE_3_03_MG = 3.03f;
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final static float SCALE_4_35_MG = 4.35f;
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public static void main(String[] args) throws InterruptedException {
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float direction = 0;
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int x, y, z;
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byte[] rx_tx_buf = new byte[MAX_BUFFER_LENGTH];
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byte[] conf_buf = new byte[CONF_BUFFER_LENGTH];
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||||||
|
//! [Interesting]
|
||||||
|
I2c i2c = new I2c(0);
|
||||||
|
|
||||||
|
i2c.address(HMC5883L_I2C_ADDR);
|
||||||
|
conf_buf[0] = HMC5883L_CONF_REG_B;
|
||||||
|
conf_buf[1] = GA_1_3_REG;
|
||||||
|
i2c.write(conf_buf);
|
||||||
|
//! [Interesting]
|
||||||
|
|
||||||
|
i2c.address(HMC5883L_I2C_ADDR);
|
||||||
|
conf_buf[0] = HMC5883L_MODE_REG;
|
||||||
|
conf_buf[1] = HMC5883L_CONT_MODE;
|
||||||
|
i2c.write(conf_buf);
|
||||||
|
|
||||||
|
while (true) {
|
||||||
|
i2c.address(HMC5883L_I2C_ADDR);
|
||||||
|
i2c.writeByte(HMC5883L_DATA_REG);
|
||||||
|
|
||||||
|
i2c.address(HMC5883L_I2C_ADDR);
|
||||||
|
i2c.read(rx_tx_buf);
|
||||||
|
|
||||||
|
x = (rx_tx_buf[HMC5883L_X_MSB_REG] << 8) | rx_tx_buf[HMC5883L_X_LSB_REG];
|
||||||
|
z = (rx_tx_buf[HMC5883L_Z_MSB_REG] << 8) | rx_tx_buf[HMC5883L_Z_LSB_REG];
|
||||||
|
y = (rx_tx_buf[HMC5883L_Y_MSB_REG] << 8) | rx_tx_buf[HMC5883L_Y_LSB_REG];
|
||||||
|
|
||||||
|
direction = (float) Math.atan2(y * SCALE_0_92_MG, x * SCALE_0_92_MG);
|
||||||
|
|
||||||
|
if (direction < 0)
|
||||||
|
direction += 2 * Math.PI;
|
||||||
|
|
||||||
|
System.out.println(String.format("Compass scaled data x : %f, y : %f, z : %f\n", x * SCALE_0_92_MG, y * SCALE_0_92_MG,
|
||||||
|
z * SCALE_0_92_MG));
|
||||||
|
System.out.println(String.format("Heading : %f\n", direction * 180 / Math.PI));
|
||||||
|
Thread.sleep(1000);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
93
examples/java/SpiMAX7219.java
Normal file
93
examples/java/SpiMAX7219.java
Normal file
@@ -0,0 +1,93 @@
|
|||||||
|
/*
|
||||||
|
* Author: Michael Ring <mail@michael-ring.org>
|
||||||
|
* Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
|
||||||
|
* Copyright (c) 2014 Intel Corporation.
|
||||||
|
* Author: Petre Eftime <petre.p.eftime@intel.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.
|
||||||
|
*/
|
||||||
|
|
||||||
|
import java.nio.ByteBuffer;
|
||||||
|
import mraa.Result;
|
||||||
|
import mraa.Spi;
|
||||||
|
|
||||||
|
public class SpiMAX7219 {
|
||||||
|
static {
|
||||||
|
try {
|
||||||
|
System.loadLibrary("mraajava");
|
||||||
|
} catch (UnsatisfiedLinkError e) {
|
||||||
|
System.err.println(
|
||||||
|
"Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
|
||||||
|
e);
|
||||||
|
System.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
public static void main(String argv[]) throws InterruptedException {
|
||||||
|
//! [Interesting]
|
||||||
|
Spi spi = new Spi(1);
|
||||||
|
|
||||||
|
spi.frequency(400000);
|
||||||
|
spi.lsbmode(false);
|
||||||
|
|
||||||
|
if(spi.bitPerWord(16) != Result.SUCCESS) {
|
||||||
|
System.err.println("Could not set SPI Device to 16Bit mode, exit...");
|
||||||
|
System.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
spi.write_word(0x0900); //Do not decode bits
|
||||||
|
spi.write_word(0x0a05); // Brightness of LEDs
|
||||||
|
spi.write_word(0x0b07); // Show all Scan Lines
|
||||||
|
spi.write_word(0x0c01); // Display on
|
||||||
|
spi.write_word(0x0f00); // Testmode off
|
||||||
|
|
||||||
|
short dataAA55[] = { 0x01aa, 0x0255, 0x03aa, 0x0455, 0x05aa, 0x0655, 0x07aa, 0x0855 };
|
||||||
|
ByteBuffer buf = ByteBuffer.allocate(dataAA55.length * 2);
|
||||||
|
for (int i = 0; i < dataAA55.length; i++)
|
||||||
|
buf.putShort(dataAA55[i]);
|
||||||
|
|
||||||
|
spi.write(buf.array());
|
||||||
|
Thread.sleep(2000);
|
||||||
|
|
||||||
|
short data55AA[] = { 0x0155, 0x02aa, 0x0355, 0x04aa, 0x0555, 0x06aa, 0x0755, 0x08aa };
|
||||||
|
buf = ByteBuffer.allocate(data55AA.length * 2);
|
||||||
|
for (int i = 0; i < data55AA.length; i++)
|
||||||
|
buf.putShort(data55AA[i]);
|
||||||
|
|
||||||
|
spi.write(buf.array());
|
||||||
|
Thread.sleep(2000);
|
||||||
|
|
||||||
|
short data[] = { 0x0100, 0x0200, 0x0300, 0x0400, 0x0500, 0x0600, 0x0700, 0x0800 };
|
||||||
|
buf = ByteBuffer.allocate(data.length * 2);
|
||||||
|
for (int i = 0; i < data.length; i++)
|
||||||
|
buf.putShort(data[i]);
|
||||||
|
|
||||||
|
spi.write(buf.array());
|
||||||
|
|
||||||
|
for (int i = 1; i <= 8; i++) {
|
||||||
|
for (int j = 0; j < 8; j++) {
|
||||||
|
spi.write_word((i << 8) + (1 << j));
|
||||||
|
Thread.sleep(1000);
|
||||||
|
}
|
||||||
|
spi.write_word(i << 8);
|
||||||
|
}
|
||||||
|
//! [Interesting]
|
||||||
|
};
|
||||||
|
}
|
||||||
64
examples/java/SpiMCP4261.java
Normal file
64
examples/java/SpiMCP4261.java
Normal file
@@ -0,0 +1,64 @@
|
|||||||
|
/*
|
||||||
|
* Author: Alexander Komarov <alexander.komarov@intel.com>
|
||||||
|
* Copyright (c) 2014 Intel Corporation.
|
||||||
|
* Author: Petre Eftime <petre.p.eftime@intel.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.
|
||||||
|
*/
|
||||||
|
|
||||||
|
import mraa.Spi;
|
||||||
|
|
||||||
|
public class SpiMCP4261 {
|
||||||
|
static {
|
||||||
|
try {
|
||||||
|
System.loadLibrary("mraajava");
|
||||||
|
} catch (UnsatisfiedLinkError e) {
|
||||||
|
System.err.println(
|
||||||
|
"Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
|
||||||
|
e);
|
||||||
|
System.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
public static void main(String argv[]) throws InterruptedException {
|
||||||
|
//! [Interesting]
|
||||||
|
Spi spi = new Spi(0);
|
||||||
|
|
||||||
|
System.out.println("Hello, SPI initialised");
|
||||||
|
byte data[] = {0x00, 100};
|
||||||
|
while (true) {
|
||||||
|
for (int i = 90; i < 130; i++) {
|
||||||
|
data[1] = (byte) i;
|
||||||
|
byte[] recv = spi.write(data);
|
||||||
|
System.out.println(String.format("Writing - %d", i));
|
||||||
|
System.out.println(String.format("Received - %d - %d", recv[0], recv[1]));
|
||||||
|
Thread.sleep(100);
|
||||||
|
}
|
||||||
|
for (int i = 130; i > 90; i--) {
|
||||||
|
data[1] = (byte) i;
|
||||||
|
byte[] recv = spi.write(data);
|
||||||
|
System.out.println(String.format("Writing - %d", i));
|
||||||
|
System.out.println(String.format("Received - %d - %d", recv[0], recv[1]));
|
||||||
|
Thread.sleep(100);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
//! [Interesting]
|
||||||
|
};
|
||||||
|
}
|
||||||
56
examples/java/UartExample.java
Normal file
56
examples/java/UartExample.java
Normal file
@@ -0,0 +1,56 @@
|
|||||||
|
/*
|
||||||
|
* Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
|
||||||
|
* Author: Brendan Le Foll <brendan.le.foll@intel.com>
|
||||||
|
* Author: Petre Eftime <petre.p.eftime@intel.com>
|
||||||
|
* Copyright (c) 2014, 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.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
import mraa.Result;
|
||||||
|
import mraa.Uart;
|
||||||
|
import mraa.UartParity;
|
||||||
|
|
||||||
|
public class UartExample {
|
||||||
|
|
||||||
|
public static void main(String[] args) {
|
||||||
|
//! [Interesting]
|
||||||
|
Uart uart = new Uart(0);
|
||||||
|
|
||||||
|
if (uart.setBaudRate(115200) != Result.SUCCESS) {
|
||||||
|
System.err.println("Error setting baud rate");
|
||||||
|
System.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (uart.setMode(8, UartParity.UART_PARITY_NONE, 1) != Result.SUCCESS) {
|
||||||
|
System.err.println("Error setting mode");
|
||||||
|
System.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (uart.setFlowcontrol(false, false) != Result.SUCCESS) {
|
||||||
|
System.err.println("Error setting flow control");
|
||||||
|
System.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
uart.writeStr("Hello monkeys");
|
||||||
|
//! [Interesting]
|
||||||
|
}
|
||||||
|
}
|
||||||
Reference in New Issue
Block a user