// lab4bmain.c
// based on main.c by Educational DSP
// Initializes autocorr_out, state, and iseed.
// Can be modified for optimization. 

#include "dsk5510_dual3006cfg.h"
#include "dsk5510.h"

#include <csl.h>
#include "lab4b.h"
#define IIR_order 4

extern int iirptr;
unsigned int *iseed;
extern int autocorr_out[N];
extern int state[IIR_order];

void init_DMA();

void main()
{
    int i;
 
	
    DSK5510_init();						// init BSL
    
    DSK5510_rset(DSK5510_MISC, 0x03);	// route McBSP0/1 to J3


	// Initialize autocorr_out to zero since some values will remain zero
	for (i = 0; i < N; ++i)
	{
		autocorr_out[i] = 0;
	}

	for ( i = 0; i < IIR_order; ++i)
		state[i] = 0;
    
    // Start McBSP0 I2S slave
    MCBSP_start(hMcbsp0, MCBSP_XMIT_START | MCBSP_RCV_START |
	MCBSP_SRGR_START | MCBSP_SRGR_FRAMESYNC, 220);
    
    // Start McBSP1 I2S master
    MCBSP_start(hMcbsp1, MCBSP_XMIT_START | MCBSP_RCV_START |
	MCBSP_SRGR_START | MCBSP_SRGR_FRAMESYNC, 220);
   
	init_DMA();							// configure DMA and interrupts

	*iseed = 1;	
	iirptr = 0;
   
    return;								// let DSP/BIOS scheduler take over
}