lab13

/*****************************************************************************
 * lab11.c
 *****************************************************************************/

#include <sys/platform.h>
#include "adi_initialize.h"
#include "lab13.h"
#include "Talkthrough.h"
#include <sysreg.h>
#include <ccblkfn.h>


/*****************************************************************************

Variables

Description:    The variables ChannelxLeftIn and ChannelxRightIn contain
        the data coming from the codec ADC (AD1871).  The (processed)
        playback data are written into the variables
        ChannelxLeftOut and ChannelxRightOut respectively, which
        are then sent back to the DAC (AD1854) in the SPORT0 ISR.

******************************************************************************/
// left input data from AD1871
int iChannel0LeftIn, iChannel1LeftIn;
// right input data from AD1871
int iChannel0RightIn, iChannel1RightIn;
// left ouput data for AD1854
int iChannel0LeftOut, iChannel1LeftOut;
// right ouput data for AD1854
int iChannel0RightOut, iChannel1RightOut;
// SPORT0 DMA transmit buffer
int iTxBuffer1[2];
// SPORT0 DMA receive buffer
int iRxBuffer1[2];

int wr_ptr = 0;
float LFO = 0.0;
float carrerAmplitude = 0.5;
int FS = 44100;
float carrerFrequency = 20.0 / 44100;
float minValue = 1000;
float maxValue = 3000;
float L=1;

int BUFFER_SIZE = 2500;

int circularBuffer[3000];


//--------------------------------------------------------------------------//
// Function:    main                                                        //
//                                                                          //
// Description: After calling a few initalization routines, main() just     //
//              waits in a loop forever.  The code to process the incoming  //
//              data can be placed in the function Process_Data() in the    //
//              file "Process_Data.c".                                      //
//--------------------------------------------------------------------------//
void main(void)
{
    Init_Flags();
    Audio_Reset();
    Init_Sport0();
    Init_DMA();
    Init_Interrupts();
    Enable_DMA_Sport0();

    while(1)
    {
        if(*pPORTFIO & (1 << 2))
        {
            while(*pPORTFIO & (1 << 2));
            L++;
        }

        if(*pPORTFIO & (1 << 3))
        {
            while(*pPORTFIO & (1 << 3));
            L--;
        }
    }
}