main.c

该压缩包为ARM S3C44B0的源代码

#include "..\inc\44b.h"
#include "..\inc\44blib.h"
#include "..\inc\def.h"
#include "..\inc\option.h"
void Display_Rtc(void);
int Test_Rtc_Alarm(void);
void Test_Rtc_Tick(void);
void DisplayRtc(void);
 void Isr_Init(void);
void Main(void)
{
char c;
  Isr_Init(); 
  Port_Init ();  
  Uart_Init (0,115200);
  Uart_Select (0);
 Uart_Printf("hahahaha\n");
  while(1)
  {Uart_Printf("\n0.    RTC(display)\n");
   Uart_Printf("1.    RTC(Alarm)\n");
   Uart_Printf("2.    RTC Tick\n");
   Uart_Printf("3.    DisplayRtc\n");
  c= Uart_Getch();
   switch(c)
   {case '0':Display_Rtc();break;                  //实时报时
   case  '1': Test_Rtc_Alarm();Uart_Getch();break;//闹钟报警
   case  '2':Test_Rtc_Tick();break;          //秒表计时
   case  '3':DisplayRtc();Uart_Getch();break;  //预设时间
   default:Uart_Printf("error\n");break;
   }
   
  }
  
 }
 void Isr_Init(void)
{
   U32 i;
     
  for(i=_RAM_STARTADDRESS;i<(_RAM_STARTADDRESS+0x20);i+=4)
    {
	    *((volatile unsigned *)i)=0xEA000000+0x1FFE;
    }  //相当于B指令，计算了一下它跳到哪里：1FFE<<2 + PC + 8
     //跳到0x0c008000->0x0c008020
  
    rINTCON=0x5;	  // Non-vectored,IRQ enable,FIQ disable    

    rINTMOD=0x0;	  // All=IRQ mode
    rINTMSK|=BIT_GLOBAL|BIT_EINT4567;	  // All interrupt is masked.
}