ST
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 
ST Expansion SW Team
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.
Diff: ReadUriCallbacks.h
- Revision:
- 7:cd34abf10350
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ReadUriCallbacks.h Wed Jul 12 15:51:19 2017 +0000
@@ -0,0 +1,120 @@
+/**
+ ******************************************************************************
+ * @file ReadUriCallbacks.cpp
+ * @date 12/07/2017
+ * @brief Class to read and print 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 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 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;
+
+ 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 on_message_read(NDefLib::NDefNfcTag *tag,bool success,
+ const NDefLib::Message*){
+
+ if (!success) {
+ printf("Error Reading tag!\r\n");
+ } else {
+ const uint32_t nRecords =mMsg.get_N_records();
+ printf("Read %d records!\r\n",nRecords);
+ for (uint32_t i=0;i<nRecords;i++) {
+ if (mMsg[i]->get_type()== NDefLib::Record::TYPE_URI) {
+ NDefLib::RecordURI *rUri = (NDefLib::RecordURI *)mMsg[i];
+ printf("UriType: %x\r\nUriContent: %s\r\n",
+ rUri->get_uri_id(),
+ rUri->get_content().c_str());
+ }//if
+ }//for
+ NDefLib::Message::remove_and_delete_all_record(mMsg);
+ mOnRead=1;
+ }//if-else
+ 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;
+ } else {
+ printf("Error opening the session\r\n");
+ }
+ }
+};