dotnfc Tang
PN532 Driver library This library provides an abstract API to drive the pn532 nfc chip, with I2C/HSU/SPI interface. Its based on the Seeed Studio's Arduino version.
Dependents: PN532_ReadUid Nfctest2
Diff: PN532_IF/PN532_SPI.h
- Revision:
- 0:db8030e71f55
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/PN532_IF/PN532_SPI.h Tue Sep 13 06:01:19 2016 +0000
@@ -0,0 +1,39 @@
+
+#ifndef __PN532_SPI_H__
+#define __PN532_SPI_H__
+
+#include "mbed.h"
+#include "PN532Interface.h"
+
+class PN532_SPI : public PN532Interface
+{
+public:
+ PN532_SPI(SPI &spi, PinName ss);
+ PN532_SPI(SPI *spi, PinName ss);
+
+ virtual void begin();
+ virtual void wakeup();
+ virtual int8_t writeCommand(const uint8_t *header, uint8_t hlen, const uint8_t *body, uint8_t blen);
+ virtual int16_t readResponse(uint8_t buf[], uint8_t len, uint16_t timeout);
+
+private:
+ SPI *_spi;
+ DigitalOut _ss;
+ uint8_t command;
+
+ bool isReady();
+ void writeFrame(const uint8_t *header, uint8_t hlen, const uint8_t *body, uint8_t blen);
+ int8_t readAckFrame();
+
+ inline void write(uint8_t data) {
+ REVERSE_BITS_ORDER(data);
+ _spi->write(data);
+ }
+ inline uint8_t read() {
+ uint8_t data = _spi->write(0);
+ REVERSE_BITS_ORDER(data);
+ return data;
+ }
+};
+
+#endif