#include "io.h"
#include "altera_avalon_fifo_regs.h"
#include "altera_avalon_fifo_util.h"
#include "system.h"
#include "sys/alt_irq.h"
#include <stdio.h>
#include <stdlib.h>
#define ALMOST_EMPTY 2
#define ALMOST_FULL FIFO_0_IN_CSR_FIFO_DEPTH-3

int main(){
int a, b, c, d;
//initializes the FIFO
a = altera_avalon_fifo_init(FIFO_0_IN_CSR_BASE, //the base address of the FIFO control slave
0, //the value to write to the interruptenable register
ALMOST_EMPTY, //the value for the almost empty threshold (порог) level
ALMOST_FULL); //the value for the most full threshold level

//write a, b into fifo

b = 0xffff;
c = altera_avalon_fifo_write_fifo(FIFO_0_IN_BASE, //the base address of the fifo write slave
FIFO_0_IN_CSR_BASE, //the base address of the fifo control slave
b ); //value to write to address

//read a,b from fifo
d = altera_avalon_fifo_read_fifo(FIFO_0_IN_BASE, //the base address of the fifo read slave
FIFO_0_IN_CSR_BASE); //the base address of the fifo control slave
return 0;
}

#include "system.h"
#include "altera_avalon_spi_regs.h"

int main ()
{
        int spi = 0x5;
        IOWR_ALTERA_AVALON_SPI_TXDATA(SPI_0_BASE, spi);
        return 0;
}