C语言基于NIOSII的软件开发及流水灯设计

一、Quartus II 12.1 (32-Bit)进行硬件设计

1.所需要的系统元器件组成

2.系统电路图

 

二、Nios II 12.1 Software Build Tools for Eclipse进行软件学号及流水灯设计

1.程序代码

/*
 * "Hello World" example.
 *
 * This example prints 'Hello from Nios II' to the STDOUT stream. It runs on
 * the Nios II 'standard', 'full_featured', 'fast', and 'low_cost' example
 * designs. It runs with or without the MicroC/OS-II RTOS and requires a STDOUT
 * device in your system's hardware.
 * The memory footprint of this hosted application is ~69 kbytes by default
 * using the standard reference design.
 *
 * For a reduced footprint version of this template, and an explanation of how
 * to reduce the memory footprint for a given application, see the
 * "small_hello_world" template.
 *
 */

#include 
#include "system.h"
#include "altera_avalon_pio_regs.h"
#include "io.h"
#include "unistd.h"
#include "alt_types.h"

typedef unsigned int u16;
typedef unsigned char u8;

#define led_on IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,0x00)
#define led_off IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,0xff)
#define cs_off IOWR_ALTERA_AVALON_PIO_DATA(DTUBE_CS_RL_BASE,0xff)

u8 csdm[4]={0xf7,0xfb,0xfd,0xfe};
u8 xhdm[4]={0x1e,0x1e,0x14,0x14};

u8 i,j,k,v,h;

void delay(u16 i)
{
	while(i--);
}

void led1()
{
	IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,0x00);
	delay(50000);
	for(v=0;v<2;v++)
	{
		k=0;
		for(i=0;i<9;i++)
		{
			j=0x01<>i);
			IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,j);
			delay(1000000);
		}
	}
}

void led3()
{
	IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,0xff);
	delay(50000);
	for(v=0;v<2;v++)
	{
		for(i=0;i<9;i++)
		{
			j=0xff<>i;
			IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,j);
			delay(1000000);
		}
		IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,0xff);
	}
}

void led50()
{
	IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,0xff);
	delay(50000);
	for(v=0;v<2;v++)
	{
		k=0x01;
		j=0xff;
		for(i=0;i<8;i++)
		{
			if(i%2==0)
			{
				h=k^j;
				IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,h);
				k=0x01<>i+2;
				delay(1000000); //大约延时1s
			}
		}
		j=0x80;
		for(i=0;i<9;i++)
				{
					if(i%2==0)
					{
						k=~j;
						IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,k);
						j=0x80>>i+2;
						delay(1000000); //大约延时1s
					}
				}
	}
}

void led7()
{
	IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,0x00);
	delay(50000);
	for(v=0;v<2;v++)
	{
		for(i=0;i<8;i++)
		{
			if(i%2!=0)
			{
				j=0x80>>i;
				IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,j);
				delay(1000000);
				k=j<<1;
				IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,k);
				delay(1000000);
			}
		}
	}
}

void led8()
{
	IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,0x00);
	delay(50000);
	for(v=0;v<2;v++)
	{
		for(i=0;i<8;i++)
		{
			if(i%2!=0)
			{
				j=0x01<>1;
				IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,k);
				delay(1000000);
			}
		}
	}
}

void xhxs()
{
	for(i=0;i<4;i++)
	{

		IOWR_ALTERA_AVALON_PIO_DATA(DTUBE_CS_RL_BASE,csdm[i]);
	    IOWR_ALTERA_AVALON_PIO_DATA(LED_BASE,xhdm[i]);
	    delay(100);
	}
	return 0;
}

int main()
{
	led_off;
	  while(1)
	  {
		if(IORD_ALTERA_AVALON_PIO_DATA(SWITCH0_BASE)==0)
		{
			xhxs();
		}
		if(IORD_ALTERA_AVALON_PIO_DATA(SWITCH1_BASE)==0)
		{
			cs_off;
			led1();
			led2();
			led3();
			led4();
			led5();
			led6();
			led7();
			led8();
		}
	  }

	  return 0;
}

2.实验现象