/*
* ======== DSK6713_AIC23_loopback ========
* Enable/disable codec loopback mode
*/
void DSK6713_AIC23_loopback(DSK6713_AIC23_CodecHandle hCodec, Int16 mode)
{
int regval;
/* Set bypass bit if mode is true */
regval = (mode) ? 0x8 : 0x0;
/* Write to codec register */
DSK6713_AIC23_rset(hCodec, DSK6713_AIC23_ANAPATH,
(DSK6713_AIC23_rget(hCodec, DSK6713_AIC23_ANAPATH) & 0xfff7 | regval));
}
// dsp-peripheral initialization
void c6713_dsk_init() {
// call BSL to init DSK-EMIF,PLL)
DSK6713_init();
// handle(pointer) to codec
hAIC23_handle=DSK6713_AIC23_openCodec(0, &config);
// set sample rate
DSK6713_AIC23_setFreq(hAIC23_handle, fs);
// choose mic or line in
DSK6713_AIC23_rset(hAIC23_handle, 0x0004, inputsource);
// interface 32 bits toAIC23
MCBSP_config(DSK6713_AIC23_DATAHANDLE,&AIC23CfgData);
// start data channel again
MCBSP_start(DSK6713_AIC23_DATAHANDLE, MCBSP_XMIT_START | MCBSP_RCV_START |
MCBSP_SRGR_START | MCBSP_SRGR_FRAMESYNC, 220);
}