some additional fixes
Fork of PN532 by
Diff: PN532_SPI.h
- Revision:
- 0:9c6b9280c0e1
- Child:
- 1:b8cab5222fd0
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/PN532_SPI.h Tue Oct 08 08:33:22 2013 +0000 @@ -0,0 +1,31 @@ + +#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 buf[], uint8_t len); + 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 buf[], uint8_t len); + 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