spi.h

/* spi.h - initialization of SPI device */
#ifndef SPI_H
#define SPI_H

//#include "task.h"

#include "sysconfig.h"
#include <avr/io.h>

#define FOSC 6400000
#define CS (1<<PB4)
#define MOSI (1<<PB5)
#define MISO (1<<PB6)
#define SCK (1<<PB7)
#define CS_DDR DDRB
#define CS_PORT PORTB
#define CS_ENABLE() (CS_PORT &= ~CS)    // set SS high
#define CS_DISABLE() (CS_PORT |= CS)    // set SS low

/* function prototypes */
void spi_init_master(void);                 // initialize spi master device (usually MC)
unsigned char spi_write(unsigned char c);   // write to slave device via spi
char spi_command(bool cmd, unsigned long arg, bool crc, uint16_t read);

#endif