gpio.c

S3C2410基础试验源代码 AD转换

//====================================================================
// File Name : 2410test.c
// Function  : S3C2410 Test Main Menu
// Program   : Shin, On Pil (SOP)
// Date      : May 30, 2002
// Version   : 0.0
// History
//   0.0 : Programming start (February 20,2002) -> SOP
//   1.0 (20020530) : First release for customer
//   1.1 (20020801) : Strata NOR Flash Added and etc. -> SOP
//====================================================================

#include <stdlib.h>
#include <string.h>

#include "def.h"
#include "option.h"
#include "2410addr.h"
#include "2410lib.h"
#include "2410slib.h"
#include "mmu.h"


void Isr_Init(void);
void HaltUndef(void);
void HaltSwi(void);
void HaltPabort(void);
void HaltDabort(void);
void Led_Display(int data);


//===================================================================
void Main(void)
{
    int i;

    Led_Display(0x0f);
    Led_Display(0x00);    
   
    
    
    MMU_Init();
   
    ChangeClockDivider(1,1);          // 1:2:4    

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

    Uart_Init(0,115200);
    Uart_Select(0);

    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
        }
        
    }
}

//===================================================================
//Active is low.(LED On)
// GPF7  GPF6   GPF5   GPF4
//nLED_1 nLED2 nLED_4 nLED_3
void Led_Display(int data)
{
//    rGPFDAT = (rGPFDAT & 0xf) | !((data & 0xf)<<4);
    rGPFDAT = (rGPFDAT & ~(0xf<<4)) | ((~data & 0xf)<<4);    
}


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

}

//===================================================================
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);                
    }
//=========================   
*/