vs1053模块的扩展音乐播放器我用例程直接烧写却不能播放音乐，求助

32探索者 · 发表于 2015-11-20 16:43:51

为什么例程不能直接用啊？而且按键也没办法用，播放的时间也没有正常的显示，这个do那边的if我觉得有点问题

[mw_shl_code=c,true]u8 mp3_play_song(u8 *pname) { FIL* fmp3; u16 br; u8 res,rval; u8 *databuf; u16 i=0; u8 key; static u8 pause=0; //????±ê?? rval=0; fmp3=(FIL*)mymalloc(SRAMIN,sizeof(FIL));//?ê?????? databuf=(u8*)mymalloc(SRAMIN,4096); //??±?4096×????????????ò if(databuf==NULL||fmp3==NULL)rval=0XFF ;//?????ê???§°?. if(rval==0) { VS_Restart_Play(); //??????·? VS_Set_All(); //?è???????????? VS_Reset_DecodeTime(); //?????????±?? res=f_typetell(pname); //?????????ó×? if(res==0x4c)//??????flac,????patch { VS_Load_Patch((u16*)vs1053b_patch,VS1053B_PATCHLEN); } res=f_open(fmp3,(const TCHAR*)pname,FA_READ);//?ò?????? //printf("sram :%d",mem_perused(0)); if(res==0)//?ò??????. { VS_SPI_SpeedHigh(); //???? while(rval==0) { res=f_read(fmp3,databuf,4096,(UINT*)&br);//????4096??×??? i=0; do//?÷??·????· { if((VS_Send_MusicData(databuf+i)==0)&&(pause==0))//??VS10XX·??????????? { i+=32; }else { key=KEY_Scan(); switch(key) { case KEY0_VAL: rval=KEY0_VAL; //?????ú break; case KEY1_VAL: rval=KEY1_VAL; //?????ú break; case KEY_UP_VAL: //????/??·? pause = !pause; break; default: break; } mp3_msg_show(fmp3->fsize);//???????? } }while(i<4096);//???··???4096??×??? if(br!=4096||res!=0) { rval=KEY0_VAL; break;//???ê??. } } f_close(fmp3); }else rval=0XFF;//?????í?ó } myfree(SRAMIN,databuf); myfree(SRAMIN,fmp3); return rval; }[/mw_shl_code]