ST / Mbed OS mbed-os-example-NFC01A1

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 Nicola Capovilla

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@0:3e88cb856f63, 2017-08-10 (annotated)

Committer:
nikapov
Date:
Thu Aug 10 16:59:44 2017 +0000
Revision:
0:3e88cb856f63
First revision

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nikapov 0:3e88cb856f63 1 /**
nikapov 0:3e88cb856f63 2 ******************************************************************************
nikapov 0:3e88cb856f63 3 * @file WriteUriCallbacks.h
nikapov 0:3e88cb856f63 4 * @date 12/07/2017
nikapov 0:3e88cb856f63 5 * @brief Class to write a URI tag.
nikapov 0:3e88cb856f63 6 ******************************************************************************
nikapov 0:3e88cb856f63 7 *
nikapov 0:3e88cb856f63 8 * COPYRIGHT(c) 2017 STMicroelectronics
nikapov 0:3e88cb856f63 9 *
nikapov 0:3e88cb856f63 10 * Redistribution and use in source and binary forms, with or without modification,
nikapov 0:3e88cb856f63 11 * are permitted provided that the following conditions are met:
nikapov 0:3e88cb856f63 12 * 1. Redistributions of source code must retain the above copyright notice,
nikapov 0:3e88cb856f63 13 * this list of conditions and the following disclaimer.
nikapov 0:3e88cb856f63 14 * 2. Redistributions in binary form must reproduce the above copyright notice,
nikapov 0:3e88cb856f63 15 * this list of conditions and the following disclaimer in the documentation
nikapov 0:3e88cb856f63 16 * and/or other materials provided with the distribution.
nikapov 0:3e88cb856f63 17 * 3. Neither the name of STMicroelectronics nor the names of its contributors
nikapov 0:3e88cb856f63 18 * may be used to endorse or promote products derived from this software
nikapov 0:3e88cb856f63 19 * without specific prior written permission.
nikapov 0:3e88cb856f63 20 *
nikapov 0:3e88cb856f63 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
nikapov 0:3e88cb856f63 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
nikapov 0:3e88cb856f63 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
nikapov 0:3e88cb856f63 24 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
nikapov 0:3e88cb856f63 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
nikapov 0:3e88cb856f63 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
nikapov 0:3e88cb856f63 27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
nikapov 0:3e88cb856f63 28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
nikapov 0:3e88cb856f63 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
nikapov 0:3e88cb856f63 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
nikapov 0:3e88cb856f63 31 *
nikapov 0:3e88cb856f63 32 ******************************************************************************
nikapov 0:3e88cb856f63 33 */
nikapov 0:3e88cb856f63 34
nikapov 0:3e88cb856f63 35 #include "mbed.h"
nikapov 0:3e88cb856f63 36 #include "NDefLib/RecordType/RecordURI.h"
nikapov 0:3e88cb856f63 37
nikapov 0:3e88cb856f63 38 /**
nikapov 0:3e88cb856f63 39 * Chain of callback that will crate a Uri record and write it.
nikapov 0:3e88cb856f63 40 * After each operation the class will switch on a led
nikapov 0:3e88cb856f63 41 */
nikapov 0:3e88cb856f63 42 class WriteUriCallbacks : public NDefLib::NDefNfcTag::Callbacks {
nikapov 0:3e88cb856f63 43
nikapov 0:3e88cb856f63 44 DigitalOut &mOnOpenSession;
nikapov 0:3e88cb856f63 45 DigitalOut &mOnWrite;
nikapov 0:3e88cb856f63 46 DigitalOut &mOnCloseSession;
nikapov 0:3e88cb856f63 47 NDefLib::Message *msg;
nikapov 0:3e88cb856f63 48
nikapov 0:3e88cb856f63 49 public:
nikapov 0:3e88cb856f63 50
nikapov 0:3e88cb856f63 51 /**
nikapov 0:3e88cb856f63 52 * create the callback chain
nikapov 0:3e88cb856f63 53 * @param onOpenSession led to switch on when the session open
nikapov 0:3e88cb856f63 54 * @param onWrite led to switch on when the write end
nikapov 0:3e88cb856f63 55 * @param onCloseSession led to switch on when the session end
nikapov 0:3e88cb856f63 56 */
nikapov 0:3e88cb856f63 57 WriteUriCallbacks(DigitalOut &onOpenSession,DigitalOut &onWrite,
nikapov 0:3e88cb856f63 58 DigitalOut &onCloseSession):mOnOpenSession(onOpenSession),
nikapov 0:3e88cb856f63 59 mOnWrite(onWrite),mOnCloseSession(onCloseSession){};
nikapov 0:3e88cb856f63 60
nikapov 0:3e88cb856f63 61 /**
nikapov 0:3e88cb856f63 62 * crate the new message and write it
nikapov 0:3e88cb856f63 63 * @param tag tag where write the message
nikapov 0:3e88cb856f63 64 * @param success true if the session correctly open
nikapov 0:3e88cb856f63 65 */
nikapov 0:3e88cb856f63 66 virtual void on_session_open(NDefLib::NDefNfcTag *tag,bool success) {
nikapov 0:3e88cb856f63 67 if (!success) {
nikapov 0:3e88cb856f63 68 printf("Error opening the session\r\n");
nikapov 0:3e88cb856f63 69 }//else
nikapov 0:3e88cb856f63 70 printf("Session opened\r\n");
nikapov 0:3e88cb856f63 71 //ask to have an interrupt when the command finish
nikapov 0:3e88cb856f63 72 mOnOpenSession=1;
nikapov 0:3e88cb856f63 73 mOnCloseSession=0;
nikapov 0:3e88cb856f63 74
nikapov 0:3e88cb856f63 75 NDefLib::RecordURI *rUri = new NDefLib::RecordURI(NDefLib::RecordURI::HTTP_WWW,"http://www.st.com");
nikapov 0:3e88cb856f63 76 msg = new NDefLib::Message();
nikapov 0:3e88cb856f63 77 msg->add_record(rUri);
nikapov 0:3e88cb856f63 78
nikapov 0:3e88cb856f63 79 tag->write(*msg);
nikapov 0:3e88cb856f63 80 }
nikapov 0:3e88cb856f63 81
nikapov 0:3e88cb856f63 82 /**
nikapov 0:3e88cb856f63 83 * request to close the session
nikapov 0:3e88cb856f63 84 * @param tag tag where close the session
nikapov 0:3e88cb856f63 85 * @param success true if the message is correctly wrote
nikapov 0:3e88cb856f63 86 * @param message wrote
nikapov 0:3e88cb856f63 87 */
nikapov 0:3e88cb856f63 88 virtual void on_message_write(NDefLib::NDefNfcTag *tag,bool success,
nikapov 0:3e88cb856f63 89 const NDefLib::Message&) {
nikapov 0:3e88cb856f63 90
nikapov 0:3e88cb856f63 91 if (!success) {
nikapov 0:3e88cb856f63 92 printf("Error writing tag!\r\n");
nikapov 0:3e88cb856f63 93 } else {
nikapov 0:3e88cb856f63 94 printf("Tag written!\r\n");
nikapov 0:3e88cb856f63 95 mOnWrite=1;
nikapov 0:3e88cb856f63 96 }//if-else
nikapov 0:3e88cb856f63 97
nikapov 0:3e88cb856f63 98 NDefLib::Message::remove_and_delete_all_record(*msg);
nikapov 0:3e88cb856f63 99 delete msg;
nikapov 0:3e88cb856f63 100 tag->close_session();
nikapov 0:3e88cb856f63 101 }
nikapov 0:3e88cb856f63 102
nikapov 0:3e88cb856f63 103 /**
nikapov 0:3e88cb856f63 104 * switch on the led
nikapov 0:3e88cb856f63 105 * @param tag where the session is closed
nikapov 0:3e88cb856f63 106 * @param success true if the session is correctly close
nikapov 0:3e88cb856f63 107 */
nikapov 0:3e88cb856f63 108 virtual void on_session_close(NDefLib::NDefNfcTag*, bool success) {
nikapov 0:3e88cb856f63 109 if (success) {
nikapov 0:3e88cb856f63 110 printf("Session closed\r\n");
nikapov 0:3e88cb856f63 111 mOnCloseSession=1;
nikapov 0:3e88cb856f63 112 mOnOpenSession=0;
nikapov 0:3e88cb856f63 113 mOnWrite=0;
nikapov 0:3e88cb856f63 114 } else {
nikapov 0:3e88cb856f63 115 printf("Error closing the session\r\n");
nikapov 0:3e88cb856f63 116 }
nikapov 0:3e88cb856f63 117 }
nikapov 0:3e88cb856f63 118 };