Diff: main.cpp

Revision:

0:651138e1c1af

Child:

1:2805113f2386

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Aug 08 14:35:36 2017 +0000
@@ -0,0 +1,103 @@
+#include "mbed.h"
+#include "M24SR.h"
+#include "ReadUriCallbacks.h"
+#include "WriteUriCallbacks.h"
+
+
+#ifdef TARGET_DISCO_L475VG_IOT01A
+// Pins definition for the DISCO_L475VG_IOT01A board
+#define NFC_I2C_SDA_PIN     PB_11
+#define NFC_I2C_SCL_PIN     PB_10
+#define NFC_GPO_PIN         PE_4
+#define NFC_RF_DISABLE_PIN  PE_2
+
+#define LED1_PIN    PA_5
+#define LED2_PIN    PB_14
+#define LED3_PIN    PC_9
+
+#else // X-NUCLEO-NFC01A1
+
+#define NFC_I2C_SDA_PIN     D14
+#define NFC_I2C_SCL_PIN     D15
+#define NFC_GPO_PIN         D12
+#define NFC_RF_DISABLE_PIN  D11
+
+#define LED1_PIN    D5
+#define LED2_PIN    D4
+#define LED3_PIN    D2
+
+#endif // DISCO_L475VG_IOT01A
+
+#define M24SR_ADDR          0xAC 
+
+
+DigitalOut Led1(LED1_PIN);
+DigitalOut Led2(LED2_PIN);
+DigitalOut Led3(LED3_PIN);
+
+
+/** 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 nfc_interrupt_callback()
+{
+    nfcInterruptFlag = true;
+}
+
+static void set_button_press()
+{
+    buttonPress = true;
+}
+
+int main()
+{
+    printf("\n\rNFC HelloWord Async example started\n\r");
+        
+    InterruptIn userButton(USER_BUTTON);
+    userButton.fall(set_button_press);
+
+    // Create the NFC component
+    I2C i2cChannel(NFC_I2C_SDA_PIN, NFC_I2C_SCL_PIN);
+    
+    M24SR nfcTag(M24SR_ADDR,i2cChannel, &nfc_interrupt_callback, NFC_GPO_PIN, NFC_RF_DISABLE_PIN);
+
+    // init needed to enable the component
+    nfcTag.init(NULL);
+    // No call back needed since default behavior is sync
+    nfcTag.get_session();
+    nfcTag.manage_I2C_GPO(M24SR::I2C_ANSWER_READY); // Switch to async mode
+
+    NDefLib::NDefNfcTag &tag = nfcTag.get_NDef_tag();
+
+    printf("Init done\n\r");
+
+    // Create the callback to use to write a tag
+    WriteUriCallbacks NDefWriteCallback(Led1,Led2,Led3);
+    ReadUriCallbacks NDefReadCallback(Led1,Led2,Led3);
+    tag.set_callback(&NDefWriteCallback); // Set the callback
+    tag.open_session(); // Start the callback chain
+
+    printf("Start main loop\n\r");
+
+    while(true) {
+        
+        if (nfcInterruptFlag) {
+            nfcInterruptFlag = false;
+            // Manage an async event from the NFC component
+            nfcTag.manage_event();
+        }
+
+        if (buttonPress) {
+            buttonPress = false;
+            printf("\n\rPressed\n\r");
+            tag.set_callback(&NDefReadCallback);
+            tag.open_session();
+        }
+        
+        __WFE(); // Wait For Event
+    }
+}