170bdd104f
Large change that removes the duplicated MIT notice withe a spdx tag Signed-off-by: Thomas Ingleby <thomas.ingleby@intel.com>
59 lines
1.6 KiB
Java
59 lines
1.6 KiB
Java
/*
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* Author: Alexander Komarov <alexander.komarov@intel.com>
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* Copyright (c) 2014 Intel Corporation.
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*
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* SPDX-License-Identifier: MIT
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*/
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public class Bmp85 {
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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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mraa.mraa.init();
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System.out.println(mraa.mraa.getVersion());
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// helper function to go from hex val to dec
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// function char(x) { return parseInt(x, 16); }
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mraa.I2c i2c = new mraa.I2c(0);
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i2c.address((byte)0x77);
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i2c.writeByte((byte)0xd0);
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/*
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SWIGTYPE_p_unsigned_char data0 = new SWIGTYPE_p_unsigned_char();*/
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byte[] data = new byte[1];
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i2c.read(data);
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System.out.println((new Integer(data[0])).toString());
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i2c.writeReg((byte)0xf4, (byte)0x2e);
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// initialise device
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if (i2c.readReg((byte)0xd0) != 0x55) {
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System.out.println("error");
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}
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// we want to read temperature so write 0x2e into control reg
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i2c.writeReg((byte)0xf4, (byte)0x2e);
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// read a 16bit reg, obviously it's uncalibrated so mostly a useless value
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// :)
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System.out.println(i2c.readWordReg((byte)0xf6));
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byte[] buf = new byte[2];
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buf[0] = (byte)0xf4;
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buf[1] = (byte)0x2e;
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i2c.write(buf);
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i2c.writeByte((byte)0xf6);
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int d = i2c.readReg((byte)2);
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System.out.println((new Integer(d)).toString());
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};
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}
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;
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