SPI/SPI.h

#ifndef __SPI_H__
#define __SPI_H__



#define SPI_TIMEOUT   10  //milli-seconds

#define NB1A_MOSI_PIN  11  //PB3
#define NB1A_MISO_PIN  12  //PB4
#define NB1A_SCK_PIN   13  //PB5

#define NB2A_MOSI_PIN   5  //PB5
#define NB2A_MISO_PIN   6  //PB6
#define NB2A_SCK_PIN    7  //PB7

#define NB2AS_MOSI_PIN  5  //PB5
#define NB2AS_MISO_PIN  6  //PB6
#define NB2AS_SCK_PIN   7  //PB7


class SPI {
 private:
  unsigned char _timeout; 
  unsigned char _mosi_pin;
  unsigned char _miso_pin;
  unsigned char _sck_pin;
 public:
  SPI(unsigned char timeout = SPI_TIMEOUT, 
      unsigned char mosi_pin = NB1A_MOSI_PIN,
      unsigned char miso_pin = NB1A_MISO_PIN,
      unsigned char sck_pin  = NB1A_SCK_PIN);
  void init(unsigned char spcr, unsigned char spsr);
  char write(unsigned char *data, unsigned char num_chars);
  char read(unsigned char *data, unsigned char max_num_chars);
};

extern SPI spi;

#endif