Home | History | Annotate | Download | only in java 
      1 /*
      2  * Author: Stefan Andritoiu <stefan.andritoiu (at) intel.com>
      3  * Copyright (c) 2015 Intel Corporation.
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining
      6  * a copy of this software and associated documentation files (the
      7  * "Software"), to deal in the Software without restriction, including
      8  * without limitation the rights to use, copy, modify, merge, publish,
      9  * distribute, sublicense, and/or sell copies of the Software, and to
     10  * permit persons to whom the Software is furnished to do so, subject to
     11  * the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be
     14  * included in all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     19  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
     20  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     21  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     22  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     23  */
     24 
     25 //NOT TESTED!!!
     26 public class M24LR64ESample {
     27 
     28 	static {
     29 		try {
     30 			System.loadLibrary("javaupm_m24lr64e");
     31 		} catch (UnsatisfiedLinkError e) {
     32 			System.err.println("error in loading native library");
     33 			System.exit(-1);
     34 		}
     35 	}
     36 
     37 	public static void main(String[] args) throws InterruptedException {
     38 		// ! [Interesting]
     39 		// Instantiate an M24LR64E on I2C bus 0
     40 		upm_m24lr64e.M24LR64E nfcTag = new upm_m24lr64e.M24LR64E(0);
     41 
     42 		// This example accesses the device in the 'user' (default) mode,
     43 		// reads the last byte of data in the EEPROM, inverts it, writes
     44 		// it back, and then re-reads it.
     45 
     46 		// Read the last byte of the EEPROM area
     47 		int addr = upm_m24lr64e.M24LR64E.EEPROM_I2C_LENGTH - 1;
     48 		System.out.println("Address: " + addr);
     49 		short read = nfcTag.readByte(addr);
     50 		System.out.println("Read: " + read);
     51 
     52 		// Now change it to it's opposite and write it
     53 		read = (short) (~read & 0xff);
     54 		nfcTag.writeByte(addr, read);
     55 		System.out.println("Wrote: " + read);
     56 
     57 		// Now read it back
     58 		read = nfcTag.readByte(addr);
     59 		System.out.println("Read: " + read);
     60 
     61 		// ! [Interesting]
     62 	}
     63 
     64 }