用emwin加ucos实现的录音机功能在放音模式下没有退出又进入录音模式就会卡死，怎么解决？

LVZHENHAI · 发表于 2016-10-11 21:39:54

[mw_shl_code=c,true]void recoder_enter_rec_mode(void)          //这是录音模式的函数
{
      WM8978_ADDA_Cfg(0,1);             //¿aÆôADC
      WM8978_Input_Cfg(1,1,0);       //¿aÆôêäèëí¨μà(MIC&LINE IN)
      WM8978_Output_Cfg(0,1);             //¿aÆôBYPASSêä3ö
      WM8978_MIC_Gain(46);             //MICÔöòæéèÖÃ

      WM8978_I2S_Cfg(2,0);             //·éàûÆÖ±ê×¼,16Î»êy¾Y3¤¶è
      I2S2_Init(I2S_Standard_Phillips,I2S_Mode_MasterTx,I2S_CPOL_Low,I2S_DataFormat_16b);                      //·éàûÆÖ±ê×¼,Ö÷»ú·￠Ëí,ê±ÖóμíμçÆ½óDD§,16Î»Ö¡3¤¶è
      I2S2ext_Init(I2S_Standard_Phillips,I2S_Mode_SlaveRx,I2S_CPOL_Low,I2S_DataFormat_16b);             //·éàûÆÖ±ê×¼,′ó»ú½óêÕ,ê±ÖóμíμçÆ½óDD§,16Î»Ö¡3¤¶è
      I2S2_SampleRate_Set(16000);       //éèÖÃ2éÑùÂê
      I2S2_TX_DMA_Init((u8*)&i2splaybuf[0],(u8*)&i2splaybuf[1],1);                //ÅäÖÃTX DMA
      DMA1_Stream4->CR&=~(1<<4);       //1Ø±Õ′«êäíê3éÖD¶Ï(Õaàï2»óÃÖD¶ÏËíêy¾Y)
      I2S2ext_RX_DMA_Init(i2srecbuf1,i2srecbuf2,I2S_RX_DMA_BUF_SIZE/2);       //ÅäÖÃRX DMA
      i2s_rx_callback=rec_i2s_dma_rx_callback;//»Øμ÷oˉêyÖ¸wav_i2s_dma_callback
      I2S_Play_Start();       //¿aê¼I2Sêy¾Y·￠Ëí(Ö÷»ú)
      I2S_Rec_Start();       //¿aê¼I2Sêy¾Y½óêÕ(′ó»ú)
//       recoder_remindmsg_show(0);
}
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void recoder_enter_play_mode(void)             //这是放音模式的函数
{
      WM8978_ADDA_Cfg(1,0);             //¿aÆôDAC
      WM8978_Input_Cfg(0,0,0);       //1Ø±Õêäèëí¨μà(MIC&LINE IN)
      WM8978_Output_Cfg(1,0);             //¿aÆôDACêä3ö
      WM8978_MIC_Gain(0);                      //MICÔöòæéèÖÃÎa0
      I2S_Play_Stop();                      //í￡Ö1ê±Öó·￠Ëí
      I2S_Rec_Stop();                      //í￡Ö1Â¼òô
//       recoder_remindmsg_show(1);
}[/mw_shl_code]