led.c

基于MDK的公版44B0的程序

#include "44B.H"

#define DELAY 300

void delay(unsigned int i)
{
    unsigned int j,k;
    for(j=0;j<i;j++)
       for(k=0;k<i;k++)
        ;
}

int main (void) 
{
	rPCONC = 0x55555555;   //设置端口寄存器
	rPCONE = 0x55555555;  
    while (1) 
    {
        rPDATE = 0x0020;  //送出数据
        rPDATC = 0x0000;
        delay(DELAY);                           
        rPDATC = 0x0002;
        delay(DELAY);
        rPDATC = 0x0004;
        delay(DELAY); 
        rPDATC = 0x0008;
        delay(DELAY); 
        rPDATC = 0x0004;
        delay(DELAY);
        rPDATC = 0x0002;
        delay(DELAY);           
        rPDATC = 0x0000;
        delay(DELAY); 
         
        rPDATE = 0x0000;  //此口接的蜂鸣器
        delay(DELAY);
        rPDATE = 0x0020;
        delay(DELAY); 
        rPDATE = 0x0000;
        delay(DELAY);
        rPDATE = 0x0020;
        delay(DELAY); 
          
        rPDATC = 0x000E;
        delay(DELAY);
        rPDATC = 0x0000;
        delay(DELAY);  
        rPDATC = 0x000E;
        delay(DELAY);
        rPDATC = 0x0000;
        delay(DELAY);  
        rPDATC = 0x000E;
        delay(DELAY);             
 
        }
}