9017a88ed226001b1091ad0065de6612

2006nios嵌入式系统电子设计大赛时用过的完整工程。

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <io.h>
#include <fcntl.h>
#include <unistd.h>
#include <math.h>
#include "altera_avalon_pio_regs.h"
#include "system.h"  
#include "VGA.h"
#include <sys/alt_timestamp.h>
#define PI 3.1415926
#define M1 17                   
#define M2 15
void main(void)
{ 
  unsigned int i=0;
  unsigned int j=0;
  unsigned int k;
  unsigned int l;
  unsigned long pixelindex;
  unsigned long  pixel=0;
  unsigned long  temp;
  unsigned long buffer[180];
  unsigned long pic1[180][180],pic2[180][180],pic3[180][180],pic4[180][180];
  unsigned long time1,time2;
  printf("\nstart!"); 
  //usleep(2000000);
  unsigned int d,m,a=0;   
 IOWR(VGA_0_BASE,32400+256,RGB(0,0,1023)) ;
 
 
 if (alt_timestamp_start() < 0) 
 {
 printf("Timer init failed \n");
 }
 for(i=100;i<280;i++)
 //for(j=0;j<10;j++)
{
   startconvert(i,100,179+100);
   usleep(13537+300);
   time1 =  alt_timestamp();
   for(k=0;k<180;k++)
  {  
     // buffer[k]=0;
     // while(!(buffer[k]&0x40000000))  
      {buffer[k]=getdata(k);}
   }      
   //printf("%d\n",buffer[k]);
   for(k=0;k<180;k++)
  {
    SetPixel1(k,i-100,(buffer[k])& 1023,(buffer[k]>>10)&1023,(buffer[k]>>20)&1023);
    //usleep(20);
  }
  time2=alt_timestamp();
  printf("\n%d",time2-time1);
 }
/*
for(i=100;i<280;i++)
for(j=100;j<280;j++)
{
   startconvert(i,j,j);
   usleep(13537*2);
    
     buffer[0]=0;
     
     
     
     while(!(buffer[0]&0x40000000))  
      {buffer[0]=getdata(0);}
      
     // printf("%d\n",buffer[0]);
   //for(k=0;k<18;k++)
  {
    SetPixel1((j-100),i-100,(buffer[0])& 1023,(buffer[0]>>10)&1023,(buffer[0]>>20)&1023);
    //printf("in setpixel \n");
  }
 
}
   
  
  */
  
  
  
 

   }