A simple application providing an example of asynchronous access to the X-NUCLEO_NFC01A1 Dynamic NFC Tag board.
Dependencies: NDefLib X_NUCLEO_NFC01A1 mbed
Fork of HelloWord_Async_NFC01A1 by
X-NUCLEO-NFC01A1 Dynamic NFC Tag Expansion Board Firmware Package
Introduction
This firmware package includes Components Device Drivers, Board Support Package and example applications for STMicroelectronics X-NUCLEO-NFC01A1 Dynamic NFC Tag Expansion Board based on M24SR.
Example Application
The application provides a simple example of asynchronous access to the X-NUCLEO-NFC01A1 Dynamic NFC Tag Expansion Board. The program writes a URI link to the M24SR dynamic tag using the asynchronous programming model. The URI can then be retrieved from an NFC enabled smartphone/tablet.
A simpler example providing synchronous access to the tag is also available.
main.cpp
- Committer:
- giovannivisentini
- Date:
- 2016-09-30
- Revision:
- 5:adf7d29c9431
- Parent:
- 4:416db8919ca4
- Child:
- 6:01e1182e2320
File content as of revision 5:adf7d29c9431:
/** ****************************************************************************** * @file Sample_async.cpp * @date 22/01/2016 * @brief Test the async comunication api ****************************************************************************** * * COPYRIGHT(c) 2015 STMicroelectronics * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ #include "mbed.h" #include "X_NUCLEO_NFC01A1.h" #include "m24sr/NDefNfcTagM24SR.h" #include "NDefLib/RecordType/RecordURI.h" /** variable set to true when we receive an interrupt from the nfc component*/ static volatile bool nfcInterruptFlag=false; /** variable set to true when the user press the board user button*/ static volatile bool buttonPress=false; /** Nfc ISR called when the nfc component has a message ready*/ static void nfcInterruptCallback(){ nfcInterruptFlag=true; }//nfcInterruptCallback static void setButtonPress(){ buttonPress=true; }//if buttonPress /** * Chain of callback that will crate a Uri record and write it. * After each operation the class will switch on a led */ class WriteUriCallbacks : public NDefLib::NDefNfcTag::Callbacks{ DigitalOut &mOnOpenSession; DigitalOut &mOnWrite; DigitalOut &mOnCloseSession; NDefLib::Message msg; public: /** * create the callback chain * @param onOpenSession led to switch on when the session open * @param onWrite led to switch on when the write end * @param onCloseSession led to switch on when the session end */ WriteUriCallbacks(DigitalOut &onOpenSession,DigitalOut &onWrite, DigitalOut &onCloseSession):mOnOpenSession(onOpenSession), mOnWrite(onWrite),mOnCloseSession(onCloseSession){}; /** * crate the new message and write it * @param tag tag where write the message * @param success true if the session correctly open */ virtual void onSessionOpen(NDefLib::NDefNfcTag *tag,bool success){ if(!success){ printf("Error opening the session\r\n"); }//else printf("Session opened\r\n"); //ask to have an interrupt when the command finish mOnOpenSession=1; NDefLib::RecordURI rUri(NDefLib::RecordURI::HTTP_WWW,"http://www.st.com"); msg.addRecord(&rUri); tag->write(msg); } /** * request to close the session * @param tag tag where close the session * @param success true if the message is correctly wrote * @param message wrote */ virtual void onMessageWrite(NDefLib::NDefNfcTag *tag,bool success, const NDefLib::Message&){ if(!success) printf("Error writing tag!\r\n"); else{ printf("Tag written!\r\n"); mOnWrite=1; }//if-else tag->closeSession(); } /** * switch on the led * @param tag where the session is closed * @param success true if the session is correctly close */ virtual void onSessionClose(NDefLib::NDefNfcTag*,bool success){ if(success){ printf("Session closed\r\n"); mOnCloseSession=1; }else printf("Error closing the session\r\n"); } }; /** * Chain of callback that will read a NDef Message and print all the * record of type URI. * After each operation the class will switch on a led */ class ReadUriCallbacks : public NDefLib::NDefNfcTag::Callbacks{ DigitalOut &mOnOpenSession; DigitalOut &mOnRead; DigitalOut &mOnCloseSession; NDefLib::Message mMsg; public: /** * create the callback chain * @param onOpenSession led to switch on when the session open * @param onWrite led to switch on when the write end * @param onCloseSession led to switch on when the session end */ ReadUriCallbacks(DigitalOut &onOpenSession,DigitalOut &onRead, DigitalOut &onCloseSession):mOnOpenSession(onOpenSession), mOnRead(onRead),mOnCloseSession(onCloseSession){}; /** * crate the new message and write it * @param tag tag where write the message * @param success true if the session correctly open */ virtual void onSessionOpen(NDefLib::NDefNfcTag *tag,bool success){ if(!success){ printf("Error opening the session\r\n"); }//else printf("Session opened\r\n"); //ask to have an interrupt when the command finish mOnOpenSession=1; tag->read(&mMsg); } /** * request to close the session * @param tag tag where close the session * @param success true if the message is correctly wrote * @param message wrote */ virtual void onMessageRead(NDefLib::NDefNfcTag *tag,bool success, const NDefLib::Message*){ if(!success) printf("Error Reading tag!\r\n"); else{ const uint32_t nRecords =mMsg.getNRecords(); printf("Read %d records!\r\n",nRecords); for(uint32_t i=0;i<nRecords;i++){ if(mMsg[i]->getType()== NDefLib::Record::TYPE_URI){ NDefLib::RecordURI *rUri = (NDefLib::RecordURI *)mMsg[i]; printf("UriType: %x\r\nUriContent: %s\r\n", rUri->getUriId(), rUri->getContent().c_str()); }//if }//for NDefLib::Message::removeAndDeleteAllRecord(mMsg); mOnRead=1; }//if-else tag->closeSession(); } /** * switch on the led * @param tag where the session is closed * @param success true if the session is correctly close */ virtual void onSessionClose(NDefLib::NDefNfcTag*,bool success){ if(success){ printf("Session closed\r\n"); mOnCloseSession=1; }else printf("Error opening the session\r\n"); } }; int main(int argc,char *args[]){ (void)argc; (void)args; #if defined(TARGET_STM) InterruptIn userButton(USER_BUTTON); userButton.fall(setButtonPress); #endif //create the nfc component I2C i2cChannel(X_NUCLEO_NFC01A1::DEFAULT_SDA_PIN,X_NUCLEO_NFC01A1::DEFAULT_SDL_PIN); X_NUCLEO_NFC01A1 *nfcNucleo = X_NUCLEO_NFC01A1::Instance(i2cChannel,&nfcInterruptCallback, X_NUCLEO_NFC01A1::DEFAULT_GPO_PIN,X_NUCLEO_NFC01A1::DEFAULT_RF_DISABLE_PIN, X_NUCLEO_NFC01A1::DEFAULT_LED1_PIN,X_NUCLEO_NFC01A1::DEFAULT_LED2_PIN, X_NUCLEO_NFC01A1::DEFAULT_LED3_PIN); //No call back needed since default behavior is sync nfcNucleo->getM24SR().GetSession(); nfcNucleo->getM24SR().ManageI2CGPO(M24SR::I2C_ANSWER_READY); //switch to async mode NDefLib::NDefNfcTag &tag = nfcNucleo->getM24SR().getNDefTag(); printf("System Init done!\n\r"); //crate the callback to use for write a tag WriteUriCallbacks NDefWriteCallback(nfcNucleo->getLed1(),nfcNucleo->getLed2(),nfcNucleo->getLed3()); ReadUriCallbacks NDefReadCallback(nfcNucleo->getLed1(),nfcNucleo->getLed2(),nfcNucleo->getLed3()); tag.setCallback(&NDefWriteCallback); //set the callback tag.openSession(); //start the callback chain printf("Start Main Loop\n\r"); while(true){ if(nfcInterruptFlag){ nfcInterruptFlag=false; //manage an async event from the nfc component nfcNucleo->getM24SR().ManageEvent(); }//if #if defined(TARGET_STM) if(buttonPress){ buttonPress=false; printf("Pressed"); tag.setCallback(&NDefReadCallback); tag.openSession(); } #endif __WFE(); }//while //return 0; }