20dfae0f3a21001b1296d4682c4d4515

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"
#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;
  printf("\nstart!"); 
  usleep(2000000);
  //IOWR(VGA_0_BASE,40000+256,RGB(1023,1023,1023));  
  unsigned int d,m,a;
 // for(;;)
  {
  a=0;
 for(j=0;j<624;j++)
  for(i=0;i<852;i++)
  {
  IOWR(LOCK_PIXEL_NUM_BASE,0,a);
   pixelindex=IORD(CURRENT_PIXEL_NUM_BASE,0);
   
  // printf("\n%d,%D",a,pixelindex);
  pixel = 0;
  //if((j>=0&&j<200)&&(i>=0&&i<200))
  {
     while(!(pixel&1073741824))  { pixel = IORD(RGB_DATA_BASE,0); }
     printf("\n%d",pixel);
     //SetPixel1(i,j,(int)(pixel&1023),(int)((pixel>>10)&1023),(int)((pixel>>20)&1023));
  }
  a++;
 // printf("\n.......%d",IORD(PIXELCOUNT_RD_BASE,0));
  }
  }
 /* IOWR(VGA_0_BASE,40000+12,1929178929);
  for(i=0;i<200;i++)
  {
    SetPixel(VGA_0_BASE,i,9,12);
    SetPixel(VGA_0_BASE,i,10,12);
        SetPixel(VGA_0_BASE,i,11,12);
    SetPixel(VGA_0_BASE,i,12,12);
  }*/
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 //以下为光栅产生程序
  /*  for(a=0;a<15;a++)
  {
     usleep(2000000);
    if(!((a/4)%2))
    {     
      for(j=0;j<M1;j++)
      {
        d=(unsigned int)(floor(180+70*sin((2*PI*j/M1)+a*PI/2)));  //I
        d=1024*d/256;
        //printf("\n%d,%d",d,RGB(d,d,d));
        for(i=0; i<11; i++)   
        {
        MoveTo(1,j+M1*i+4);
        LineTo(199,j+M1*i+4,d,d,d); 
         
        }
    
      } 

    }   
    else
    {
      for(j=0;j<M2;j++)
      {
        d=(unsigned int)(floor(180+70*sin((2*PI*j/M2)+a*PI/2)));  //I
        d=1024*d/256;
        for(i=0; i<11; i++)
        {
        MoveTo(1,j+M2*i+4);
        LineTo(199,j+M2*i+4,d,d,d);
        }
      }
    }
      } */
  //////////////////////////////////
  
  
  
  


}