/* * Author: Jon Trulson * 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 #include #include "m24lr64e.h" using namespace std; using namespace upm; int main(int argc, char **argv) { //! [Interesting] // Instantiate an M24LR64E on I2C bus 0 upm::M24LR64E *nfcTag = new upm::M24LR64E(M24LR64E_I2C_BUS); // This example accesses the device in the 'user' (default) mode, // reads the last byte of data in the EEPROM, inverts it, writes // it back, and then re-reads it. // Read the last byte of the EEPROM area int addr = M24LR64E::EEPROM_I2C_LENGTH - 1; printf("Address: %d\n", addr); uint8_t byte = nfcTag->readByte(addr); printf("Read byte: %02x\n", byte); // Now change it to it's opposite and write it byte = ~byte; nfcTag->writeByte(addr, byte); printf("Wrote inverted byte: %02x\n", byte); // Now read it back. byte = nfcTag->readByte(addr); printf("Read byte: %02x\n", byte); //! [Interesting] cout << "Exiting..." << endl; delete nfcTag; return 0; }