//=============================================
//      pass.c
//=============================================

#include "dsk6713.h"
#include "dsk6713_aic23.h"
#include "dsk6713_dip.h"
#include "dsk6713_led.h"
#include "coeff_pb.h"

#include "pass.h"

 union union_AIC_data CodecIn, CodecOut;
 // defines CodecIn and CodecOut as 32 bits unsigned integer or
 // union of 2 short 16 bits signed integers CodecIn.channel[], CodecOut.channel[]
short memo[2048], index=0;
//Sampling frequency
uint32_t fs=DSK6713_AIC23_FREQ_8KHZ;

float y_c;
float X[N+1];
//New ADC sample interrupt
interrupt void c_int11()
{
  //uint32_t yn;

  DSK6713_LED_off(0);

  CodecIn.uint =input_sample();
  memo[index]= CodecIn.channel[1];
  if (index++ ==2048)index=0;
//...
  //...
  //...
  X[N] = CodecIn.channel[0];
  int i = 0;
  for(i = 0; i < N+1; i++){
	  y_c += b[i]*X[N-i];
  }

  for(i=0; i < N-1; i++){
	  X[i] = X[i+1];
  }

  CodecOut.channel[0]= CodecIn.channel[0];
  CodecOut.channel[0]= CodecIn.channel[0];
  output_sample(CodecOut.uint);               //real-time output

  DSK6713_LED_on(0);
  // permet de vérifier la durée du traitement avec une sonde sur la broche de la LED
}

void main()
{
    DSK6713_DIP_init();
    DSK6713_LED_init();

    //init codec,DSK, MCBSP
 	comm_intr();   // or without interrupt: comm_poll();

	while(1)
	{
	   //Dip switchs and leds example
 	   if (DSK6713_DIP_get(2) == 1)
 	      DSK6713_LED_off(1);
 	   else
 	      DSK6713_LED_on(1);
	}
}                                               //end of main