some additional fixes
Fork of PN532 by
PN532_SPI.h
- Committer:
- yihui
- Date:
- 2013-10-08
- Revision:
- 0:9c6b9280c0e1
- Child:
- 1:b8cab5222fd0
File content as of revision 0:9c6b9280c0e1:
#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