實驗目的：

1．瞭解觸IIS基本概念與原理。

2．瞭解觸DMA基本概念與原理。。

3．編程實現對IIS的控制。

 本次實驗編寫對IIS進行控制的程式,我們可以進行錄音,放音。

#include <stdlib.h>

#include <string.h>

//Shin, On Pil

#include "def.h"

#include "option.h"

#include "2410addr.h"

#include "2410lib.h"

#include "2410slib.h"

#include "2410iis.h"

#include "mmu.h"

void Isr_Init(void);

void HaltUndef(void);

void HaltSwi(void);

void HaltPabort(void);

void HaltDabort(void);

void * function[][2]=

{

//IIS  

    (void *)Record_Iis,                     "Reco IIS UDA1341    ",

    (void *)Test_Iis,                       "Play IIS UDA1341    ",

    0,0

};

//===================================================================

void Main(void)

{

    int i;

    Led_Display(15);

    MMU_Init();

#if ADS10  

    __rt_lib_init();                //for ADS 1.0

#endif

//    ChangeClockDivider(0,0);          // 1:1:1   

//    ChangeClockDivider(1,0);          // 1:2:2   

    ChangeClockDivider(1,1);          // 1:2:4   

//    ChangeMPllValue(0x92,0x4,0x2);    // FCLK=50MHz   

//    ChangeMPllValue(0x96,0x5,0x1);    // FCLK=135428571Hz

//    ChangeMPllValue(0x2a,0x1,0x0);    // FCLK=200MHz  

//    ChangeMPllValue(0x5c,0x1,0x1);    // FCLK=200MHz

//    ChangeMPllValue(0x5c,0x4,0x0);    // FCLK=200MHz

//    ChangeMPllValue(0x8e,0x7,0x0);    // FCLK=200MHz       

    ChangeMPllValue(0xa1,0x3,0x1);    // FCLK=202.8MHz 

//    ChangeMPllValue(0x66,0x1,0x1);    // FCLK=220MHz  

//    ChangeMPllValue(0x69,0x1,0x1);    // FCLK=226MHz      

//    ChangeMPllValue(0x96,0x2,0x1);    // FCLK=237MHz

    Port_Init();

    Isr_Init();

//    Rtc_Init();

    Uart_Init(0,115200);

    Uart_Select(0);

    //Check whether or not the POWER_OFF wake-up.

    Delay(0);   //calibrate Delay()

    rIISPSR=(2<<5)|(2<<0); //IIS_LRCK=44.1Khz @384fs,PCLK=50Mhz.

    rGPHCON = rGPHCON & ~(0xf<<18)|(0x5<<18);   //CLKOUT 0,1=OUTPUT to reduce the power consumption.

    while(1)

    {

        i = 0;

        Uart_Printf("\n\nSMDK2410 Board (MCU S3C2410) Test Program Ver 1.1(20020801) FCLK = %d Hz\n\n", FCLK);

        while(1)

        {   //display menu

            Uart_Printf("%2d:%s",i,function[i][1]);

            i++;

            if((int)(function[i][0])==0)

            {

                Uart_Printf("\n");

                break;

            }

            if((i%4)==0)

            Uart_Printf("\n");

        }

        Uart_Printf("\nSelect the function to test : ");

        i = Uart_GetIntNum();

        Uart_Printf("\n");

        //GPG4 Output Port [9:8] 01      -> LCD power On

        rGPGCON = (rGPGCON & 0xfffffcff) | (1<<8);

        rGPGDAT = (rGPGDAT & 0xffef) | (1<<4);       

        if(i>=0 && (i<(sizeof(function)/8)) )

            ( (void (*)(void)) (function[i][0]) )();           

    }

}

//===================================================================

void Isr_Init(void)

{

    pISR_UNDEF  = (unsigned)HaltUndef;

    pISR_SWI    = (unsigned)HaltSwi;

    pISR_PABORT = (unsigned)HaltPabort;

    pISR_DABORT = (unsigned)HaltDabort;

    rINTMOD     = 0x0;                     //All=IRQ mode

//    rINTCON=0x5;                           //Non-vectored,IRQ enable,FIQ disable   

    rINTMSK     = BIT_ALLMSK;              //All interrupt is masked.

    rINTSUBMSK  = BIT_SUB_ALLMSK;          //All sub-interrupt is masked. <- April 01, 2002 SOP

//    rINTSUBMSK  = ~(BIT_SUB_RXD0);         //Enable Rx0 Default value=0x7ff

//    rINTMSK     = ~(BIT_UART0);            //Enable UART0 Default value=0xffffffff   

//    pISR_UART0=(unsigned)RxInt;            //pISR_FIQ,pISR_IRQ must be initialized

}

//===================================================================

void HaltUndef(void)

{

    Uart_Printf("Undefined instruction exception.\n");

    while(1);

}

//===================================================================

void HaltSwi(void)

{

    Uart_Printf("SWI exception.\n");

    while(1);

}

//===================================================================

void HaltPabort(void)

{

    Uart_Printf("Pabort exception.\n");

    while(1);

}

//===================================================================

void HaltDabort(void)

{

    Uart_Printf("Dabort exception.\n");

    while(1);

}

/*

//=========================

    while(1)

    {

       Led_Display(3);

    }

//=========================   

*/

/*

//=========================

    while(1)

    {

       Led_Display(1);

       Delay(1500);  

       Led_Display(2);

       Delay(1500);            

       Led_Display(4);

       Delay(1500);  

       Led_Display(8);

       Delay(1500);               

    }

//=========================