while position_play if position_play 16 position_play CurrentIndex SD_

    while(1)
    {


        position_play++;
        if (position_play == 16)
        {
         position_play = 0;
         CurrentIndex++;
         SD_READ(CurrentSector + CurrentIndex);
        }

        XDCS_SET();
        for(R2 = 0; R2 < 32; R2++)
        SPI_I2S_SendData(SPI2, BUFFER[(position_play * 32) + R2]);
        while (!GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_12)){}
        XDCS_RESET();
   }