Revision 1:b90509addac2, committed 2017-12-28

Comitter:

zhangyx

Date:

Thu Dec 28 03:06:15 2017 +0000

Parent:

0:54a12c4b19c2

Commit message:

gpio demo

Changed in this revision

diff -r 54a12c4b19c2 -r b90509addac2 LibPN532.lib
--- a/LibPN532.lib	Tue Sep 13 06:18:59 2016 +0000
+++ b/LibPN532.lib	Thu Dec 28 03:06:15 2017 +0000
@@ -1,1 +1,1 @@
-https://developer.mbed.org/users/dotnfc/code/LibPN532/#b5922b3b3257
+https://os.mbed.com/users/zhangyx/code/LibPN532/#d8e57d5776b3

diff -r 54a12c4b19c2 -r b90509addac2 main.cpp
--- a/main.cpp	Tue Sep 13 06:18:59 2016 +0000
+++ b/main.cpp	Thu Dec 28 03:06:15 2017 +0000
@@ -12,52 +12,19 @@
 #include "PN532_SPI.h"
 #include "PN532_I2C.h"
 
-DigitalOut ledBrd (LED1);   // arducleo onboard led
-
-DigitalOut ledNFC (D9);     // status led
-
-DigitalOut rstNFC (D4);     // pn532 chip reset control
-
-PwmOut buz(PB_1);
-
 Serial pc(SERIAL_TX, SERIAL_RX);
 
 // ----------------------------------------- HSU
-//HardwareSerial pn532_hsu (PC_10, PC_11);
-//PN532_HSU pn532_if (pn532_hsu);
-
-// ----------------------------------------- SPI
-SPI pn532_spi (SPI_MOSI, SPI_MISO, SPI_SCK);
-PN532_SPI pn532_if (pn532_spi, SPI_CS);
-
-// ----------------------------------------- I2C
-//I2C pn532_i2c (I2C_SDA, I2C_SCL);
-//PN532_I2C pn532_if (pn532_i2c);
-
-
+HardwareSerial pn532_hsu (PC_10, PC_11);
+PN532_HSU pn532_if (pn532_hsu);
 
 PN532 nfc(pn532_if);
 
 /*==============================================================================
- * \brief reset the pn532 chip
- */
-void reset_chip (void)
-{
-    rstNFC = 0;
-    wait_ms (100);
-    rstNFC = 1;
-}
-
-
-/*==============================================================================
  * \brief init the peripheral
  */
 void setup(void)
 {
-    ledBrd = 0;
-    ledNFC = 0;
-    reset_chip ();
-
     uint32_t versiondata = 0;
     pc.baud(115200);
     pc.printf ("Hello!\n");
@@ -93,62 +60,23 @@
 
 
 /*==============================================================================
- * \brief find a tag
- */
-void loop(void)
-{
-    bool success;
-    uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 };  // Buffer to store the returned UID
-    uint8_t uidLength;  // Length of the UID (4 or 7 bytes depending on ISO14443A card type)
-
-    // configure board to read RFID tags
-    nfc.SAMConfig();
-
-    // Wait for an ISO14443A type cards (Mifare, etc.).  When one is found
-    // 'uid' will be populated with the UID, and uidLength will indicate
-    // if the uid is 4 bytes (Mifare Classic) or 7 bytes (Mifare Ultralight)
-    success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, &uid[0], &uidLength);
-
-    printf ("\n");
-
-    if (success) {
-        tone (buz, 800);        // turn on the buzzer
-        ledNFC = 1;             // led on
-
-        pc.printf("Found a card!\n");
-
-        pc.printf("UID Length: %d bytes\n", uidLength);
-        pc.printf("UID Value: ");
-
-        for (uint8_t i=0; i < uidLength; i++)
-            pc.printf(" 0x%02X", uid[i]);
-
-        pc.printf("\n");
-
-        wait_ms (100);
-        tone (buz, 0);          // turn off the buzzer
-
-        // wait until the card is taken away
-        while (nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, &uid[0], &uidLength, 500)) {}
-
-        ledNFC = 0;         // led off
-    } else {
-        // PN532 probably timed out waiting for a card
-        pc.printf("\nTimed out waiting for a card\n");
-        ledNFC = 0;
-        wait_ms (200);
-    }
-}
-
-
-/*==============================================================================
  * \brief main entry
  */
 int main()
 {
     setup();
 
-    while (1)
-        loop ();
+    //PN532 GPIO 例子
+    //对于P3
+    nfc.writeGPIOP3(PN532_GPIO_P30); //把P30设置为1，其余P3设置为0
+    nfc.writeGPIOP3(PN532_GPIO_P30|PN532_GPIO_P32); //把P30,P32设置为1，其余P3设置为0
+    nfc.writeGPIOP3(0); //把P3全部设置为0
+
+    //对于P7
+    nfc.writeGPIOP7(PN532_GPIO_P70); //把P70设置为1，其余P7设置为0
+    nfc.writeGPIOP7(PN532_GPIO_P70|PN532_GPIO_P72); //把P70,P72设置为1，其余P7设置为0
+    nfc.writeGPIOP7(0); //把P7全部设置为0
+
+    while (1);
 }