some additional fixes
Fork of PN532 by
PN532_SPI.h@1:b8cab5222fd0, 2013-10-17 (annotated)
- Committer:
- yihui
- Date:
- Thu Oct 17 06:37:26 2013 +0000
- Revision:
- 1:b8cab5222fd0
- Parent:
- 0:9c6b9280c0e1
- Child:
- 3:4189a10038e6
format code
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
yihui | 0:9c6b9280c0e1 | 1 | |
yihui | 0:9c6b9280c0e1 | 2 | #ifndef __PN532_SPI_H__ |
yihui | 0:9c6b9280c0e1 | 3 | #define __PN532_SPI_H__ |
yihui | 0:9c6b9280c0e1 | 4 | |
yihui | 0:9c6b9280c0e1 | 5 | #include "mbed.h" |
yihui | 0:9c6b9280c0e1 | 6 | #include "PN532Interface.h" |
yihui | 0:9c6b9280c0e1 | 7 | |
yihui | 1:b8cab5222fd0 | 8 | class PN532_SPI : public PN532Interface |
yihui | 1:b8cab5222fd0 | 9 | { |
yihui | 0:9c6b9280c0e1 | 10 | public: |
yihui | 0:9c6b9280c0e1 | 11 | PN532_SPI(SPI &spi, PinName ss); |
yihui | 1:b8cab5222fd0 | 12 | PN532_SPI(SPI *spi, PinName ss); |
yihui | 1:b8cab5222fd0 | 13 | |
yihui | 0:9c6b9280c0e1 | 14 | virtual void begin(); |
yihui | 0:9c6b9280c0e1 | 15 | virtual void wakeup(); |
yihui | 0:9c6b9280c0e1 | 16 | virtual int8_t writeCommand(const uint8_t buf[], uint8_t len); |
yihui | 0:9c6b9280c0e1 | 17 | virtual int16_t readResponse(uint8_t buf[], uint8_t len, uint16_t timeout); |
yihui | 1:b8cab5222fd0 | 18 | |
yihui | 0:9c6b9280c0e1 | 19 | private: |
yihui | 1:b8cab5222fd0 | 20 | SPI *_spi; |
yihui | 0:9c6b9280c0e1 | 21 | DigitalOut _ss; |
yihui | 0:9c6b9280c0e1 | 22 | uint8_t command; |
yihui | 1:b8cab5222fd0 | 23 | |
yihui | 0:9c6b9280c0e1 | 24 | bool isReady(); |
yihui | 0:9c6b9280c0e1 | 25 | void writeFrame(const uint8_t buf[], uint8_t len); |
yihui | 0:9c6b9280c0e1 | 26 | int8_t readAckFrame(); |
yihui | 1:b8cab5222fd0 | 27 | |
yihui | 1:b8cab5222fd0 | 28 | inline void write(uint8_t data) { |
yihui | 1:b8cab5222fd0 | 29 | REVERSE_BITS_ORDER(data); |
yihui | 1:b8cab5222fd0 | 30 | _spi->write(data); |
yihui | 1:b8cab5222fd0 | 31 | } |
yihui | 1:b8cab5222fd0 | 32 | inline uint8_t read() { |
yihui | 1:b8cab5222fd0 | 33 | uint8_t data = _spi->write(0); |
yihui | 1:b8cab5222fd0 | 34 | REVERSE_BITS_ORDER(data); |
yihui | 1:b8cab5222fd0 | 35 | return data; |
yihui | 1:b8cab5222fd0 | 36 | } |
yihui | 0:9c6b9280c0e1 | 37 | }; |
yihui | 0:9c6b9280c0e1 | 38 | |
yihui | 0:9c6b9280c0e1 | 39 | #endif |