[syntax=c]/*
* main.c
*
* Created on: 24-09-2013
* Author: kod z poradnilka
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include <util/delay.h>
#define MOSI (1<<PB5) // A
#define SCK (1<<PB5) // SC
#define LT (1<<PB4) // LT
#define LT_ON PORTB |= LT
#define LT_OFF PORTB &= ~LT
void InitSpi (void);
void s( uint64_t word );
int main( void ) {
while(1)
{
InitSpi();
s( 0xffffffffffffffff); // zapal wszystkie diody
_delay_ms(1000);
s( 0x00000000000000ff); // pierwsze diody
_delay_ms(1000);
s( 0x000000000000ff00); // drugie diody
_delay_ms(1000);
s( 0x0000000000ff0000); // trzecie diody
_delay_ms(1000);
s( 0x00000000ff000000); // czwarte diody
_delay_ms(1000);
s( 0x000000ff00000000); // piąte diody
_delay_ms(1000);
s( 0x0000ff0000000000); // szóste diody
_delay_ms(1000);
s( 0x00ff000000000000); // siudme diody
_delay_ms(1000);
s( 0xff00000000000000); // ósme diody
_delay_ms(1000);
}}
// sei();
void s( uint64_t word ) {
SPDR = word>>56;
while( !(SPSR & (1<<SPIF)) );
SPDR = word>>48;
while( !(SPSR & (1<<SPIF)) );
SPDR = word>>40;
while( !(SPSR & (1<<SPIF)) );
SPDR = word>>32;
while( !(SPSR & (1<<SPIF)) );
SPDR = word>>24;
while( !(SPSR & (1<<SPIF)) );
SPDR = word>>16;
while( !(SPSR & (1<<SPIF)) );
SPDR = word>>8;
while( !(SPSR & (1<<SPIF)) );
SPDR = word;
while( !(SPSR & (1<<SPIF)) );
LT_ON;
LT_OFF;
}
void InitSpi(void) {
DDRB |= MOSI|SCK|LT; // piny SPI jako wyjścia
DDRB = 0xff;
SPCR |= (1<<SPE)|(1<<MSTR); // włącz SPI i ustaw Master
SPSR |= (1<<SPI2X); // fosc/2
}[/syntax]Statystyki: Napisane przez mariuszkz — 1 mar 2014, o 15:47
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