/*

 * Copyright (C) 2003 Texas Instruments Incorporated

 * All Rights Reserved

 */

/*

 *---------main_mcasp1.c---------

 * MCASP example to demonstrate DIT transmission for Q31 24-bit data type

 */ 

#include <csl.h>

#include <stdio.h>

#include "mcasp1.h"





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

/* Define data sections                                               */

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

/* for this particular example, setup more src data than needed for

   McASP transmitter. See function SetupSrcLocation for details */

#pragma DATA_SECTION(srcData, "Int_Dat")

Uint32  srcData[TOTAL_RCV_DATA*NUM_RCV_SERIALIZER];



#pragma DATA_SECTION(dstData, "Int_Dat")

Uint32  dstData[TOTAL_RCV_DATA*NUM_RCV_SERIALIZER];



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

/* Global variables for interrupt-serviced testcases                  */

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

volatile Uint32 xmtDone;

volatile Uint32 rcvDone;



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

/* Global Handle                                                      */

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

EDMA_Handle hEdmaAXEVT;

EDMA_Handle hEdmaAREVT;

EDMA_Handle hEdmaNull;



MCASP_Handle hMcasp;





/*----------------------------------------------------------------------------*/



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

/* Main                                                               */

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

void main() {





    int i,port;

    int error = 0;     

    

    /* Configuration for DEVCFG register */



    CHIP_Config devCfgReg = 

     {



          CHIP_DEVCFG_RMK(

               CHIP_DEVCFG_EKSRC_ECLKIN,

               CHIP_DEVCFG_TOUT1SEL_MCASPPIN,

               CHIP_DEVCFG_TOUT0SEL_MCASPPIN,

               CHIP_DEVCFG_MCBSP0DIS_1,

               CHIP_DEVCFG_MCBSP1DIS_1)

               

     };

  

    

    CSL_init();         



    /*---------------------------------------------------------------*/

    /* Initialization                                                */

    /*---------------------------------------------------------------*/     

    /* Sets GIE = 0 and NMIE = 1.  Also disables all interrupts, */

    /* clears all interrupt flags. */



    IRQ_globalDisable(); /* GIE=0 */

    CHIP_FSET(CSR, PGIE, CHIP_CSR_PGIE_DEFAULT);

	

	for (i = 4; i < 16; ++i)

	{

		IRQ_reset(i);

	}	

    

    /* Programs the DEVCFG register so that the muxed pins on the 

            C6713 device functions as MCASP pins.

     */  

 

    CHIP_config(&devCfgReg);



    port =0 ;      

    

    /* clear global variable (test pass/fail info) */ 

    xmtDone = 0;

    rcvDone = 0;

     

    /*---------------------------------------------------------------*/

    /* Initialization                                                */

    /*---------------------------------------------------------------*/       



    /* Setup Source Data */

    /* See function for details on how data is setup for this particular

       example.(mcasp_data.c) */

    SetupSrcLocations((Uint32)srcData, TOTAL_XMT_DATA*NUM_XMT_SERIALIZER, NUM_XMT_SERIALIZER);



    /* Clear Destination Location */

    ClearMem((Uint32)dstData, TOTAL_RCV_DATA*NUM_RCV_SERIALIZER);

    

    hMcasp = MCASP_open(port, MCASP_OPEN_RESET);

    

    /* Initialize MCASP device */

    /* See function for details on how MCASP is setup for this particular

       example.(mcasp_periph.c) */

    

    InitMcasp(port);  

    

    /* Setup EDMA and enable channels to service MCASP */     

    /* See function for details in mcasp_periph.c */

    

    SetupEdma(port);

    

    /* Sets up interrupts to service EDMA transfers */

    /* See function for details in mcasp_interrupt.c */

    

    SetInterruptsEdma();

    

    /* Wake up the Receiver by taking serializer and state machine

            out of reset */

    /* See function for details in mcasp_periph.c */        

    

    WakeRcvXmt(port);

    

    /*Enable internal frame sync of the frame sync master

       This step can be stepped if external frame sync is used. */

    

    MCASP_enableFsync(hMcasp, MCASP_XMT);

    while(!MCASP_FGETH(hMcasp,GBLCTL, XFRST));

     

    while(!(rcvDone & xmtDone));

    

    MCASP_resetRcv(hMcasp);

    

    while ((MCASP_RGETH(hMcasp, GBLCTL) & 0x1F) != 0);

    

    MCASP_resetXmt(hMcasp);

     

    while ((MCASP_RGETH(hMcasp, GBLCTL) & 0x1F00) != 0);



    /*---------------------------------------------------------------*/

    /* Check results                                                 */

    /*---------------------------------------------------------------*/          

    error += CheckTransfer((Uint32)srcData, (Uint32)dstData, TOTAL_RCV_DATA*NUM_RCV_SERIALIZER);



    /*---------------------------------------------------------------*/

    /* Clean up: Reset periperhals and close handles                 */

    /*---------------------------------------------------------------*/   



    /* McASP */    

    MCASP_reset(hMcasp);

    MCASP_close(hMcasp);     

    

    /* EDMA */     

    EDMA_reset(hEdmaAXEVT);

    EDMA_close(hEdmaAXEVT);

    EDMA_reset(hEdmaAREVT);

    EDMA_close(hEdmaAREVT);

    EDMA_reset(hEdmaNull);

    EDMA_close(hEdmaNull);

    

    /* Interrupts */

    IRQ_globalDisable();

        

    if (error) {

      	printf("\nTEST FAILED\n");

    	}

        else {

        printf("\nTEST PASSED\n");

        

    }

    

}





/******************************************************************************\

* End of main.c

\******************************************************************************/