#ifndef aSPISlave_h
#define aSPISlave_h

#define DDR_SPI DDRB
#define DD_MOSI PB3
#define DD_MISO PB4
#define DD_SCK PB5
#define DD_SS PB2

extern int index;
extern char data[];

#ifdef __cplusplus
extern "C" {
#endif

  void SPI_SlaveInit(void);
  char CRC8(char *data, int length);

#ifdef __cplusplus
}
#endif

#endif