A simple mbed OS application providing an example of asynchronous access to the X-NUCLEO_NFC01A1 Dynamic NFC Tag board.
Dependencies: NDefLib X_NUCLEO_NFC01A1
Fork of mbed-os-example-NFC01A1 by
The application provides a simple example of asynchronous access to the X-NUCLEO-NFC01A1 Dynamic NFC Tag Expansion Board. It represents the multi-threaded mbed OS 5 version of the mbed classic HelloWorld_Async_NFC01A1 application.
The program writes a URI link to the M24SR dynamic tag using the asynchronous programming model.
The URI can then be read and printed on the serial console by pressing the user button and/or via RF from an NFC enabled smartphone/tablet.
WriteUriCallbacks.h
- Committer:
- nikapov
- Date:
- 2017-08-10
- Revision:
- 0:3e88cb856f63
File content as of revision 0:3e88cb856f63:
/** ****************************************************************************** * @file WriteUriCallbacks.h * @date 12/07/2017 * @brief Class to write a URI tag. ****************************************************************************** * * COPYRIGHT(c) 2017 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 "NDefLib/RecordType/RecordURI.h" /** * 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 on_session_open(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; mOnCloseSession=0; NDefLib::RecordURI *rUri = new NDefLib::RecordURI(NDefLib::RecordURI::HTTP_WWW,"http://www.st.com"); msg = new NDefLib::Message(); msg->add_record(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 on_message_write(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 NDefLib::Message::remove_and_delete_all_record(*msg); delete msg; tag->close_session(); } /** * switch on the led * @param tag where the session is closed * @param success true if the session is correctly close */ virtual void on_session_close(NDefLib::NDefNfcTag*, bool success) { if (success) { printf("Session closed\r\n"); mOnCloseSession=1; mOnOpenSession=0; mOnWrite=0; } else { printf("Error closing the session\r\n"); } } };