main.c

来自「这是44B0开发板的一些源代码,对于学习嵌入式系统开发的同志来说,是一个很好的资」· C语言 代码 · 共 45 行

#include "option.h"
#include "def.h"
#include "44b.h"
#include "44blib.h"


void Main(void)
{
    U8 which_key;		
    
   // rSYSCFG=CACHECFG;   // Using 8KB Cache//

    Port_Init();
    
    Led_Display(0x0);

    rPCONG=0x00ff;	//EINT7~0
    rPUPG=0x0;		//pull up enable
     Beep(0);
    while(1) {	  
    	
    	while((rPDATG & 0xf0)==0xf0);
    	which_key=rPDATG&0xf0;
        switch(which_key)
        {
    	case 0xe0:
    	    Led_Display(1);
    	    Beep(1);
    	    break;
    	case 0xd0:
    	    Led_Display(2);
    	    Beep(0);
    	    break;
    	case 0xb0:
    	    Led_Display(3);
    	    break;
    	case 0x70:
    	    Led_Display(0);
    	    break;
    
        }
    }
    
}