为什么我的MP3 ram测试返回值是一堆乱码？以及MP3播放显示000kbps，显示播放时间 92：15

aucheng · 发表于 2018-7-28 22:20:33

本帖最后由 aucheng 于 2018-7-28 22:27 编辑

RT，希望各位大佬指教一下，下面是图和我的代码，还有我的MP3模块是正点原子的VS1053MP3模块，但是我的开发板不是探索者的板，是我自己画的F4板，MP3模块代码仿照F1战舰板的代码，这部分代码中的引脚初始化也改成了我的F4板的代码，其余代码仿照探索者的板的代码。
#include "mp3player.h"
#include "vs10xx.h"
#include "delay.h"
#include "led.h"
#include "key.h"
#include "lcd.h"
#include "malloc.h"
#include "text.h"
#include "string.h"
#include "exfuns.h"
#include "ff.h"
#include "flac.h"
#include "usart.h"

void mp3_index_show(u16 index,u16 total)
{

LCD_ShowxNum(30+0,230,index,3,16,0X80);
LCD_ShowChar(30+24,230,'/',16,0);
LCD_ShowxNum(30+32,230,total,3,16,0X80);
}

void mp3_vol_show(u8 vol)
{
LCD_ShowString(30+110,230,200,16,16,"VOL:");
LCD_ShowxNum(30+142,230,vol,2,16,0X80);
}
u16 f_kbps=0;

void mp3_msg_show(u32 lenth)
{
static u16 playtime=0;//²¥·ÅÊ±¼ä±ê¼Ç
   u16 time=0;// Ê±¼ä±äÁ¿
u16 temp=0;
if(f_kbps==0xffff)
{
      playtime=0;
      f_kbps=VS_Get_HeadInfo();
}
time=VS_Get_DecodeTime();
if(playtime==0)playtime=time;
else if((time!=playtime)&&(time!=0))
{
      playtime=time;
      temp=VS_Get_HeadInfo();
      if(temp!=f_kbps)
      {
         f_kbps=temp;
      }

      LCD_ShowxNum(30,210,time/60,2,16,0X80);
      LCD_ShowChar(30+16,210,':',16,0);
      LCD_ShowxNum(30+24,210,time%60,2,16,0X80);
      LCD_ShowChar(30+40,210,'/',16,0);
      //ÏÔÊ¾×ÜÊ±¼ä
      if(f_kbps)time=(lenth/f_kbps)/125;
      else time=0;
      LCD_ShowxNum(30+48,210,time/60,2,16,0X80);
      LCD_ShowChar(30+64,210,':',16,0);
      LCD_ShowxNum(30+72,210,time%60,2,16,0X80);
      //ÏÔÊ¾Î»ÂÊ
         LCD_ShowxNum(30+110,210,f_kbps,3,16,0X80);    //ÏÔÊ¾Î»ÂÊ
      LCD_ShowString(30+134,210,200,16,16,"Kbps");
      LED0=!LED0;       //DS0·×ª
}
}
//µÃµ½pathÂ·¾¶ÏÂ,Ä¿±êÎÄ¼þµÄ×Ü¸öÊý
//path:Â·¾¶
//·µ»ØÖµ:×ÜÓÐÐ§ÎÄ¼þÊý
u16 mp3_get_tnum(u8 *path)
{
u8 res;
u16 rval=0;
   DIR tdir;          //ÁÙÊ±Ä¿Â¼
FILINFO tfileinfo; //ÁÙÊ±ÎÄ¼þÐÅÏ¢
u8 *fn;
res=f_opendir(&tdir,(const TCHAR*)path); //´ò¿ªÄ¿Â¼
   tfileinfo.lfsize=_MAX_LFN*2+1;                      //³¤ÎÄ¼þÃû×î´ó³¤¶È
tfileinfo.lfname=mymalloc(SRAMIN,tfileinfo.lfsize); //Îª³¤ÎÄ¼þ»º´æÇø·ÖÅäÄÚ´æ
if(res==FR_OK&&tfileinfo.lfname!=NULL)
{
      while(1)//²éÑ¯×ÜµÄÓÐÐ§ÎÄ¼þÊý
      {
         res=f_readdir(&tdir,&tfileinfo);             //¶ÁÈ¡Ä¿Â¼ÏÂµÄÒ»¸öÎÄ¼þ
         if(res!=FR_OK||tfileinfo.fname[0]==0)break; //´íÎóÁË/µ½Ä©Î²ÁË,ÍË³ö
         fn=(u8*)(*tfileinfo.lfname?tfileinfo.lfname:tfileinfo.fname);
         res=f_typetell(fn);
         if((res&0XF0)==0X40)//È¡¸ßËÄÎ»,¿´¿´ÊÇ²»ÊÇÒôÀÖÎÄ¼þ
         {
            rval++;//ÓÐÐ§ÎÄ¼þÊýÔö¼Ó1
         }
      }
}
myfree(SRAMIN,tfileinfo.lfname);
return rval;
}
//²¥·ÅÒôÀÖ
void mp3_play(void)
{
u8 res;
   DIR mp3dir;          //Ä¿Â¼
FILINFO mp3fileinfo;//ÎÄ¼þÐÅÏ¢
u8 *fn;             //³¤ÎÄ¼þÃû
u8 *pname;          //´øÂ·¾¶µÄÎÄ¼þÃû
u16 totmp3num;       //ÒôÀÖÎÄ¼þ×ÜÊý
u16 curindex;       //Í¼Æ¬µ±Ç°Ë÷Òý
u8 key;             //¼üÖµ
   u16 temp;
u16 *mp3indextbl; //ÒôÀÖË÷Òý±í
   while(f_opendir(&mp3dir,"0:/MUSIC"))//´ò¿ªÍ¼Æ¬ÎÄ¼þ¼Ð
   {
      Show_Str(30,190,240,16,"MUSICÎÄ¼þ¼Ð´íÎó!",16,0);
      delay_ms(200);
      LCD_Fill(30,190,240,206,WHITE);//Çå³ýÏÔÊ¾
      delay_ms(200);
}
totmp3num=mp3_get_tnum("0:/MUSIC"); //µÃµ½×ÜÓÐÐ§ÎÄ¼þÊý
   while(totmp3num==NULL)//ÒôÀÖÎÄ¼þ×ÜÊýÎª0
   {
      Show_Str(30,190,240,16,"Ã»ÓÐÒôÀÖÎÄ¼þ!",16,0);
      delay_ms(200);
      LCD_Fill(30,190,240,146,WHITE);//Çå³ýÏÔÊ¾
      delay_ms(200);
}
   mp3fileinfo.lfsize=_MAX_LFN*2+1;                      //³¤ÎÄ¼þÃû×î´ó³¤¶È
mp3fileinfo.lfname=mymalloc(SRAMIN,mp3fileinfo.lfsize); //Îª³¤ÎÄ¼þ»º´æÇø·ÖÅäÄÚ´æ
   pname=mymalloc(SRAMIN,mp3fileinfo.lfsize);             //Îª´øÂ·¾¶µÄÎÄ¼þÃû·ÖÅäÄÚ´æ
   mp3indextbl=mymalloc(SRAMIN,2*totmp3num);             //ÉêÇë2*totmp3num¸ö×Ö½ÚµÄÄÚ´æ,ÓÃÓÚ´æ·ÅÒôÀÖÎÄ¼þË÷Òý
   while(mp3fileinfo.lfname==NULL||pname==NULL||mp3indextbl==NULL)//ÄÚ´æ·ÖÅä³ö´í
   {
      Show_Str(30,190,240,16,"ÄÚ´æ·ÖÅäÊ§°Ü!",16,0);
      delay_ms(200);
      LCD_Fill(30,190,240,146,WHITE);//Çå³ýÏÔÊ¾
      delay_ms(200);
}
VS_HD_Reset();
VS_Soft_Reset();
vsset.mvol=250;                      //Ä¬ÈÏÉèÖÃÒôÁ¿Îª220.
mp3_vol_show((vsset.mvol-100)/5); //ÒôÁ¿ÏÞÖÆÔÚ:100~250,ÏÔÊ¾µÄÊ±ºò,°´ÕÕ¹«Ê½(vol-100)/5,ÏÔÊ¾,Ò²¾ÍÊÇ0~30
//¼ÇÂ¼Ë÷Òý
res=f_opendir(&mp3dir,"0:/MUSIC"); //´ò¿ªÄ¿Â¼
if(res==FR_OK)
{
      curindex=0;//µ±Ç°Ë÷ÒýÎª0
      while(1)//È«²¿²éÑ¯Ò»±é
      {
            temp=mp3dir.index;                               //¼ÇÂ¼µ±Ç°index
         res=f_readdir(&mp3dir,&mp3fileinfo);             //¶ÁÈ¡Ä¿Â¼ÏÂµÄÒ»¸öÎÄ¼þ
         if(res!=FR_OK||mp3fileinfo.fname[0]==0)break; //´íÎóÁË/µ½Ä©Î²ÁË,ÍË³ö
            fn=(u8*)(*mp3fileinfo.lfname?mp3fileinfo.lfname:mp3fileinfo.fname);
            res=f_typetell(fn);
         if((res&0XF0)==0X40)//È¡¸ßËÄÎ»,¿´¿´ÊÇ²»ÊÇÒôÀÖÎÄ¼þ
         {
            mp3indextbl[curindex]=temp;//¼ÇÂ¼Ë÷Òý
            curindex++;
         }
      }
}
   curindex=0;                                           //´Ó0¿ªÊ¼ÏÔÊ¾
   res=f_opendir(&mp3dir,(const TCHAR*)"0:/MUSIC");    //´ò¿ªÄ¿Â¼
while(res==FR_OK)//´ò¿ª³É¹¦
{
      dir_sdi(&mp3dir,mp3indextbl[curindex]);          //¸Ä±äµ±Ç°Ä¿Â¼Ë÷Òý
res=f_readdir(&mp3dir,&mp3fileinfo);             //¶ÁÈ¡Ä¿Â¼ÏÂµÄÒ»¸öÎÄ¼þ
if(res!=FR_OK||mp3fileinfo.fname[0]==0)break; //´íÎóÁË/µ½Ä©Î²ÁË,ÍË³ö
fn=(u8*)(*mp3fileinfo.lfname?mp3fileinfo.lfname:mp3fileinfo.fname);
      strcpy((char*)pname,"0:/MUSIC/");             //¸´ÖÆÂ·¾¶(Ä¿Â¼)
      strcat((char*)pname,(const char*)fn);             //½«ÎÄ¼þÃû½ÓÔÚºóÃæ
      LCD_Fill(30,190,240,190+16,WHITE);             //Çå³ýÖ®Ç°µÄÏÔÊ¾
      Show_Str(30,190,240-30,16,fn,16,0);             //ÏÔÊ¾¸èÇúÃû×Ö
      mp3_index_show(curindex+1,totmp3num);
      key=mp3_play_song(pname);                //²¥·ÅÕâ¸öMP3
      if(key==2)       //ÉÏÒ»Çú
      {
         if(curindex)curindex--;
         else curindex=totmp3num-1;
      }else if(key<=1)//ÏÂÒ»Çú
      {
         curindex++;
         if(curindex>=totmp3num)curindex=0;//µ½Ä©Î²µÄÊ±ºò,×Ô¶¯´ÓÍ·¿ªÊ¼
      }else break; //²úÉúÁË´íÎó
}
myfree(SRAMIN,mp3fileinfo.lfname); //ÊÍ·ÅÄÚ´æ
myfree(SRAMIN,pname);             //ÊÍ·ÅÄÚ´æ
myfree(SRAMIN,mp3indextbl);          //ÊÍ·ÅÄÚ´æ
}

//²¥·ÅÒ»ÇúÖ¸¶¨µÄ¸èÇú
//·µ»ØÖµ:0,Õý³£²¥·ÅÍê³É
//       1,ÏÂÒ»Çú
//    2,ÉÏÒ»Çú
//    0XFF,³öÏÖ´íÎóÁË
u8 mp3_play_song(u8 *pname)
{
   FIL* fmp3;
u16 br;
u8 res,rval;
u8 *databuf;
u16 i=0;
u8 key;

rval=0;
fmp3=(FIL*)mymalloc(SRAMIN,sizeof(FIL));//ÉêÇëÄÚ´æ
databuf=(u8*)mymalloc(SRAMIN,4096);       //¿ª±Ù4096×Ö½ÚµÄÄÚ´æÇøÓò
if(databuf==NULL||fmp3==NULL)rval=0XFF ;//ÄÚ´æÉêÇëÊ§°Ü.
if(rval==0)
{
      VS_Restart_Play();                   //ÖØÆô²¥·Å
      VS_Set_All();                         //ÉèÖÃÒôÁ¿µÈÐÅÏ¢
      VS_Reset_DecodeTime();                   //¸´Î»½âÂëÊ±¼ä
      res=f_typetell(pname);                   //µÃµ½ÎÄ¼þºó×º
      if(res==0x4c)//Èç¹ûÊÇflac,¼ÓÔØpatch
      {
         VS_Load_Patch((u16*)vs1053b_patch,VS1053B_PATCHLEN);
      }
      res=f_open(fmp3,(const TCHAR*)pname,FA_READ);//´ò¿ªÎÄ¼þ    ''
      if(res==0)//´ò¿ª³É¹¦.
      {
         VS_SPI_SpeedHigh(); //¸ßËÙ
         while(rval==0)
         {
            res=f_read(fmp3,databuf,4096,(UINT*)&br);//¶Á³ö4096¸ö×Ö½Ú
            i=0;
            do//Ö÷²¥·ÅÑ»·
            {
                  if(VS_Send_MusicData(databuf+i)==0)//¸øVS10XX·¢ËÍÒôÆµÊý¾Ý
                  {
                     i+=32;
                  }else
                  {
                     key=9;
                     switch(key)
                     {
                        case KEY0_PRES:
                              rval=1;       //ÏÂÒ»Çú
                              break;
                        case KEY2_PRES:
                              rval=2;       //ÉÏÒ»Çú
                              break;
                        case WKUP_PRES: //ÒôÁ¿Ôö¼Ó
                              if(vsset.mvol<250)
                              {
                                 vsset.mvol+=5;
                                 VS_Set_Vol(vsset.mvol);
                              }else vsset.mvol=250;
                              mp3_vol_show((vsset.mvol-100)/5); //ÒôÁ¿ÏÞÖÆÔÚ:100~250,ÏÔÊ¾µÄÊ±ºò,°´ÕÕ¹«Ê½(vol-100)/5,ÏÔÊ¾,Ò²¾ÍÊÇ0~30
                              break;
                        case KEY1_PRES: //ÒôÁ¿¼õ
                              if(vsset.mvol>100)
                              {
                                 vsset.mvol-=5;
                                 VS_Set_Vol(vsset.mvol);
                              }else vsset.mvol=100;
                              mp3_vol_show((vsset.mvol-100)/5); //ÒôÁ¿ÏÞÖÆÔÚ:100~250,ÏÔÊ¾µÄÊ±ºò,°´ÕÕ¹«Ê½(vol-100)/5,ÏÔÊ¾,Ò²¾ÍÊÇ0~30
                              break;
                     }
                     mp3_msg_show(fmp3->fsize);//ÏÔÊ¾ÐÅÏ¢
                  }
            }while(i<4096);//Ñ»··¢ËÍ4096¸ö×Ö½Ú
            if(br!=4096||res!=0)
            {
                  rval=0;
                  break;//¶ÁÍêÁË.
            }
         }
         f_close(fmp3);
      }else rval=0XFF;//³öÏÖ´íÎó
}
myfree(SRAMIN,databuf);
myfree(SRAMIN,fmp3);
return rval;
}