main.c

包含s3c2440几乎所有测试程序代码

#include "def.h"
#include "option.h"
#include "2440addr.h"
#include "2440lib.h"

static void __irq Eint0_ISR(void)
{
    ClearPending(BIT_EINT0);
    Uart_Printf("EINT0  is occurred.\n");
}

static void __irq Eint2_ISR(void)
{
    ClearPending(BIT_EINT2);
    Uart_Printf("EINT2 is occurred.\n");
}

static void __irq Eint11_19_ISR(void)
{
    if(rEINTPEND & (1<<11))
    {  
	Uart_Printf("EINT11 is occurred.\n");
	rEINTPEND=(1<<11);
    ClearPending(BIT_EINT8_23);
    }
    else if(rEINTPEND & (1<<19))
    {
	Uart_Printf("EINT19 is occurred.\n");
	rEINTPEND=(1<<19);
    ClearPending(BIT_EINT8_23);
    }
    else
    {
	Uart_Printf("others ENTs are occurred\n");
	rEINTPEND=0xffffff;
    ClearPending(BIT_EINT8_23);
    }
}


void xmain(void)
{
	ChangeClockDivider(3,1);
	ChangeMPllValue(127,2,1);		//405MHZ
	
	Isr_Init();
	Uart_Init(0, 115200);
	Uart_Select(0);
	Uart_Printf("the main is running\n");
	
	rGPFCON = (rGPFCON & ~((3<<4)|(3)))|(1<<5)|(1<<1);		//GPF0/2 = EINT0/2
    rGPGCON = (rGPGCON & ~((3<<22)|(3<<6)))|(1<<23)|(1<<7);	//GPG3/11 = EINT11/19
	
	rEXTINT0 = (rEXTINT0 & ~(7<<8))|(2<<8); //EINT0/2=falling edge triggered
	rEXTINT0 = (rEXTINT0 & ~(7<<0))|(2<<0);
	rEXTINT1 = (rEXTINT1 & ~(7<<12))|(0x2<<12); //EINT11=falling edge triggered
	rEXTINT2 = (rEXTINT2 & ~(7<<12))|(0x2<<12); //EINT19=falling edge triggered
	
    pISR_EINT0=(U32)Eint0_ISR;
    pISR_EINT2=(U32)Eint2_ISR;
    pISR_EINT8_23=(U32)Eint11_19_ISR;
	
	
	rEINTPEND = 0xffffff;
    rSRCPND |= BIT_EINT0|BIT_EINT2|BIT_EINT8_23; //to clear the previous pending states
    rINTPND |= BIT_EINT0|BIT_EINT2|BIT_EINT8_23;
    
    rEINTMASK=~( (1<<11)|(1<<19) );
    rINTMSK=~(BIT_EINT0|BIT_EINT2|BIT_EINT8_23);
    
    while(1)
    {
    Uart_Printf("the main is running\n");
    Delay(100000);
    }
}