main.cpp

00001 /**
00002   ******************************************************************************
00003   * @file       main.cpp
00004   * @date       22/01/2016
00005   * @brief      Test the async comunication api
00006   ******************************************************************************
00007   *
00008   * COPYRIGHT(c) 2015 STMicroelectronics
00009   *
00010   * Redistribution and use in source and binary forms, with or without modification,
00011   * are permitted provided that the following conditions are met:
00012   *   1. Redistributions of source code must retain the above copyright notice,
00013   *      this list of conditions and the following disclaimer.
00014   *   2. Redistributions in binary form must reproduce the above copyright notice,
00015   *      this list of conditions and the following disclaimer in the documentation
00016   *      and/or other materials provided with the distribution.
00017   *   3. Neither the name of STMicroelectronics nor the names of its contributors
00018   *      may be used to endorse or promote products derived from this software
00019   *      without specific prior written permission.
00020   *
00021   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00022   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00023   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00024   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
00025   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00026   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00027   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00028   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00029   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00030   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00031   *
00032   ******************************************************************************
00033   */
00034 
00035 #include "mbed.h"
00036 #include "XNucleoNFC01A1.h"
00037 #include "ReadUriCallbacks.h"
00038 #include "WriteUriCallbacks.h"
00039 #include "NDefNfcTagM24SR.h"
00040 #include "NDefLib/RecordType/RecordURI.h"
00041 
00042  
00043 /** variable set to true when we receive an interrupt from the nfc component*/
00044 static volatile bool nfcInterruptFlag=false;
00045  
00046 /** variable set to true when the user press the board user button*/
00047 static volatile bool buttonPress=false;
00048  
00049 /** Nfc ISR called when the nfc component has a message ready*/
00050 static void nfc_interrupt_callback() {
00051     nfcInterruptFlag=true;
00052 }//nfcInterruptCallback
00053  
00054 static void set_button_press() {
00055     buttonPress=true;
00056 }//if buttonPress
00057  
00058 int main(int argc,char *args[]) {
00059     (void)argc; (void)args;
00060  
00061 #if defined(TARGET_STM)
00062     InterruptIn userButton(USER_BUTTON);    
00063     userButton.fall(set_button_press);
00064 #endif
00065  
00066     //create the nfc component
00067     I2C i2cChannel(XNucleoNFC01A1::DEFAULT_SDA_PIN,XNucleoNFC01A1::DEFAULT_SDL_PIN);
00068 
00069     XNucleoNFC01A1 *nfcNucleo = XNucleoNFC01A1::instance(i2cChannel,&nfc_interrupt_callback,
00070         XNucleoNFC01A1::DEFAULT_GPO_PIN,XNucleoNFC01A1::DEFAULT_RF_DISABLE_PIN,
00071         XNucleoNFC01A1::DEFAULT_LED1_PIN,XNucleoNFC01A1::DEFAULT_LED2_PIN,
00072         XNucleoNFC01A1::DEFAULT_LED3_PIN);
00073  
00074     //No call back needed since default behavior is sync
00075     nfcNucleo->get_M24SR().get_session();
00076     nfcNucleo->get_M24SR().manage_I2C_GPO(M24SR::I2C_ANSWER_READY); //switch to async mode
00077  
00078     NDefLib::NDefNfcTag &tag = nfcNucleo->get_M24SR().get_NDef_tag();
00079     printf("System Init done!\n\r");
00080  
00081     //crate the callback to use for write a tag
00082     WriteUriCallbacks NDefWriteCallback(nfcNucleo->get_led1(),nfcNucleo->get_led2(),nfcNucleo->get_led3());
00083     ReadUriCallbacks NDefReadCallback(nfcNucleo->get_led1(),nfcNucleo->get_led2(),nfcNucleo->get_led3());
00084     tag.set_callback(&NDefWriteCallback); //set the callback
00085     tag.open_session(); //start the callback chain
00086  
00087     printf("Start Main Loop\n\r");
00088     while(true) {
00089         if (nfcInterruptFlag) {
00090             nfcInterruptFlag=false;
00091             //manage an async event from the nfc component
00092             nfcNucleo->get_M24SR().manage_event();
00093         }//if
00094 #if defined(TARGET_STM)
00095         if (buttonPress) {
00096             buttonPress=false;
00097             printf("Pressed");
00098             tag.set_callback(&NDefReadCallback);
00099             tag.open_session();
00100         }
00101 #endif
00102         __WFE();
00103     }//while
00104  
00105     //return 0;
00106 }