vga.c

在Altera公司NIOS IDE开发中控制VGA显示

#include "system.h"
#include "VGA.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <io.h>
#include "sys/alt_irq.h"
#include "altera_avalon_pio_regs.h"
volatile int edge_capture;

short s[120000];
long cnttime=0;

//int keyword;
short flag=0,num=0;

unsigned long base;
static void handle_button_interrupts(void* context, alt_u32 id)
{
  volatile int* edge_capture_ptr = (volatile int*) context;
  *edge_capture_ptr = IORD_ALTERA_AVALON_PIO_EDGE_CAP(BUTTON_PIO_BASE);
  IOWR_ALTERA_AVALON_PIO_EDGE_CAP(BUTTON_PIO_BASE, 0);
//  printf("in the button pio!edge capture is:%d\n",edge_capture);
}

static void init_button_pio()
{

  void* edge_capture_ptr = (void*) &edge_capture;
  IOWR_ALTERA_AVALON_PIO_IRQ_MASK(BUTTON_PIO_BASE, 0xf);
  IOWR_ALTERA_AVALON_PIO_EDGE_CAP(BUTTON_PIO_BASE, 0x0);
  alt_irq_register( BUTTON_PIO_IRQ, edge_capture_ptr, handle_button_interrupts ); 
}



void main(void)
{
  init_button_pio();
    unsigned short mmm,site=3,over,xs,ys;
  int i,cnt;
  VGA_Ctrl_Reg vga_ctrl_set;
  
  vga_ctrl_set.VGA_Ctrl_Flags.RED_ON    = 1;
  vga_ctrl_set.VGA_Ctrl_Flags.GREEN_ON  = 1;
  vga_ctrl_set.VGA_Ctrl_Flags.BLUE_ON   = 1;
  vga_ctrl_set.VGA_Ctrl_Flags.CURSOR_ON = 1;
  
  Vga_Write_Ctrl(VGA_0_BASE, vga_ctrl_set.Value);
  Set_Pixel_On_Color(1023,0,0);
  Set_Pixel_Off_Color(0,0,1023);
  
    int cnti=3;
  Vga_Move_instruct(VGA_0_BASE,7);
  usleep(1000000);

//while(1)

  ///////////////////////////////////////
       Vga_Move_instruct(VGA_0_BASE,7);//清屏
       usleep(100000);
       Vga_Move_instruct(VGA_0_BASE,7);//清屏
       usleep(100000);
  ///////////////////////////////////////
 
      Vga_Game_Start(VGA_0_BASE,0);
      usleep(1000);
           Vga_Game_Start(VGA_0_BASE,0);
           usleep(1000);
             IOWR(VGA_0_BASE,OSD_MEM_ADDR+12,0x3);
  Vga_Move_instruct(VGA_0_BASE,7);
  usleep(200000);

  Vga_Game_Start(VGA_0_BASE,1);
usleep(1000);
  Vga_Game_Start(VGA_0_BASE,1);
usleep(1000);
  IORD(VGA_0_BASE,OSD_MEM_ADDR+15);
  IORD(VGA_0_BASE,OSD_MEM_ADDR+15);
  //Vga_Move_instruct(VGA_0_BASE,site%5);
  //          Vga_Move_instruct(VGA_0_BASE,3);
printf("begin:\n");

//usleep(2000000);            Vga_Move_instruct(VGA_0_BASE,2);
//usleep(2000000);            Vga_Move_instruct(VGA_0_BASE,1);
//usleep(2000000);            Vga_Move_instruct(VGA_0_BASE,4);
usleep(2000000);            Vga_Move_instruct(VGA_0_BASE,2);
printf("eheng:\n");
usleep(1000000);
//  while(1);
 while(1) 
 
 {
  
  /////clear the car and the point ,then set the stop bit//////
  IOWR(VGA_0_BASE,OSD_MEM_ADDR+12,0x4);
  /////clear the car and the point ,then set the stop bit//////
  
  /////close the game//////////
        Vga_Game_Start(VGA_0_BASE,0);
        usleep(1000);
  /////close the game//////////    
  /////clear the screen/////////
        Vga_Move_instruct(VGA_0_BASE,7);
        usleep(1000000);
  /////clear the screen/////////      

  /////open the game//////////
        Vga_Game_Start(VGA_0_BASE,1);
        usleep(1000);
  /////open the game//////////    
  
  /////light the car and the point ,then clear the stop bit//////
  IOWR(VGA_0_BASE,OSD_MEM_ADDR+12,0x3);
  /////light the car and the point ,then clear the stop bit//////  


     while(1)
     {

//       printf("begin:\n");
    
       Vga_Move_instruct(VGA_0_BASE,edge_capture%5);
        
        mmm=IORD(VGA_0_BASE,OSD_MEM_ADDR+15);
        mmm=IORD(VGA_0_BASE,OSD_MEM_ADDR+15);
        mmm=IORD(VGA_0_BASE,OSD_MEM_ADDR+15);
        
        if(mmm!=0)
      
        {

  //        usleep(100);
//          mmm=IORD(VGA_0_BASE,OSD_MEM_ADDR+15);
    //      mmm=IORD(VGA_0_BASE,OSD_MEM_ADDR+15);
     //     mmm=IORD(VGA_0_BASE,OSD_MEM_ADDR+15);
                  //if(mmm!=0)
                  {
                  printf("the enter mmm = %x\t",mmm);
                   ///////////stop the game//////////
                   IOWR(VGA_0_BASE,OSD_MEM_ADDR+12,0x0);
                   ///////////stop the game//////////
        
                    ////////////clear the car and set the clear bit//////////
                    Vga_Move_instruct(VGA_0_BASE,4);
                    ////////////clear the car and set the clear bit//////////        
                    Vga_Game_Start(VGA_0_BASE,0);
                    //mmm=0;
                   // mmm=0;
                    
                    break;
 
                     }

        }
        printf(" mmm = %x\n",mmm);
        
     }
/////////////////clear the car and the point///////////  
    IOWR(VGA_0_BASE,OSD_MEM_ADDR+12,0);
    usleep(20);
/////////////////clear the car and the point///////////

/////////////////clear screen/////////////////   
      printf("clear screen!\n");
      Vga_Move_instruct(VGA_0_BASE,7);
      usleep(1000000);
/////////////////clear screen/////////////////   

/////////////show the result///////////////
      if(mmm==1)
      {
      Vga_Move_instruct(VGA_0_BASE,5);
      usleep(5000000);
      printf("fail!\n");
      }
      else if(mmm==2)
      {
      Vga_Move_instruct(VGA_0_BASE,6);
      usleep(5000000);
      printf("win!\n");
      }
      mmm=0;
/////////////show the result///////////////

/////////////get the key data//////////////      
//      
while(1){if(edge_capture==1)break;}
printf("key1:\n");
while(1){if(edge_capture==2)break;}
printf("key2:\n");
/////////////get the key data//////////////


/////////close the game/////////
      Vga_Game_Start(VGA_0_BASE,0);
      usleep(1000);
      Vga_Game_Start(VGA_0_BASE,0);
      usleep(1000);
/////////close the game/////////

    }
}