// hlavickovy soubor pro praci s SPI rozhranim


#ifndef SPI
#define SPI "SPI.H"
#endif

//////----------KONSTANTY-----------/////////
#define SS 4 
#define MOSI 5
#define MISO 6
#define SCK 7
#define SET_SS_DP   PORTB |=(1<<SS)
#define CLEAR_SS_DP   PORTB &= ~(1<<SS)
#define SET_SS_MEGA162   PORTB |=(1<<PB0)
#define CLEAR_SS_MEGA162  PORTB &= ~(1<<PB0)

//////----------FUNKCE-----------/////////
//fce. pro inicializeci SPI v rezimu master
void SPI_MasterInit(void){
		
	DDRB |= (1<<MOSI)|(1<<SCK)|(1<<SS);
	SPCR |= (1<<SPE)|(1<<MSTR)|(1<<SPR0);//povoleni preruseni od SPI, set master, set fosc/16

}
//fce. pro inicializeci nastaveni vysilani v rezimu master
void SPI_MasterTransmit(uint8_t cData){
	/* Start transmission */
	SPDR = cData;
	/* Wait for transmission?complete */
	while(!(SPSR & (1<<SPIF))); 
}