b0c0809e8b0b001c1f8c8bc8b5c84589

FPGA开发,DE2开发板上实现,从SD卡读出MP3文件并播放,(即是开发一个简单的MP3播放器)

#include "basic_io.h"
#include "LCD.h"
#include "SD_Card.h"
#include <math.h>

int main(void)
{
  //UINT16 i=0,Tmp1=0,Tmp2=0;

  UINT32 j=720;

  BYTE Buffer[512]={0};
  
  BYTE Buffer1[512]={1,2,3,4,5,6,7};
  SD_card_init();
  LCD_Test();
  SD_write_lba(Buffer1,j,1);
  
    for(x=0;x<5;x++)
    cmd_buffer[x]=cmd13[x];
    y = send_cmd(cmd_buffer);
    Ncr();
    
    SD_read_lba(Buffer,j,1);
  
  /*while(1)
  {
    
    SD_read_lba(Buffer,j,1);
    
    while(i<512)
    {
      if(!IORD(AUD_FULL_BASE,0))
      {
        Tmp1=(Buffer[i+1]<<8)|Buffer[i];
        IOWR(AUDIO_0_BASE,0,Tmp1);
        i+=2;
      }
    }
    if(j%64==0)
    {
      Tmp2=Tmp1*Tmp1;
      IOWR(LED_RED_BASE,0,Tmp2);
      IOWR(LED_GREEN_BASE,0,Tmp1);
    }
    IOWR(SEG7_DISPLAY_BASE,0,j);
    j++;
    i=0;
  }*/
 printf("successful");
}