ledshuma.c

ADS下开发LED的一个简单例子

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "2410addr.h"
#include "option.h"
#include "strata16.h"
volatile  unsigned int * pLedData;

void delay1()
{
  int i;
 for(i=1;i<20000;i++)
   {
    //int b;
   // for (j=0;j<1000;j++);
       
     
   }  
}

//------------------------------------------------------------------------
// 函数名	:	HC164_SendDat()
// 功  能	:	向74HC164发送一字节数据
//------------------------------------------------------------------------
void  HC164_SendDat(unsigned char data_input)
{   unsigned char  j;

   for(j=0; j<8; j++)					// 发送8位数据
   {  
       rGPGDAT=rGPGDAT&(~(0x1<<9));		// CLK = 0
      
										// 设置DATA移位输出
      if( (data_input&0x80)!=0 )
      		rGPGDAT=rGPGDAT|(0x1<<8);
      else 
      		rGPGDAT=rGPGDAT&(~(0x1<<8));
      		
      data_input <<= 1;
      rGPGDAT=rGPGDAT|(0x1<<9);		// CLK = 1
   }
}

// 8段数码管码表                              
unsigned char const  LED_TAB[] = { 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
							0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71 };
void Main(void)
{
	 pLedData=(volatile  unsigned int *)( 0x20000000);
	 rGPGCON = 0x50000;
	while(1)
	
{    int k;
      
       printf("fftchina");
       
       for(k=0;k<16;k++)
       {
       HC164_SendDat(~LED_TAB[k]);
       delay1();
       
       }
       
      /* *pLedData=0xc0c00000;
        delay1(); 
        *pLedData=0xf9f90000;
        delay1();
       *pLedData=0xa4a40000;
       delay1();
       *pLedData=0xb0b00000;
       delay1();
       *pLedData=0x99990000;
       delay1();
       *pLedData=0x92920000;
       delay1();
       *pLedData=0x82820000;
       delay1();
       *pLedData=0xf8f80000;
       delay1();
       *pLedData=0x80800000;
       delay1();
       *pLedData=0x90900000;
       delay1();
    
    */
      
};
}