test10.c

KeilC51 下作的8*8LED显示程序。更改delay()时间和tab*表中的值

#include <AT89X52.H> 

sbit P10=P1^0;
unsigned char code taba[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f}; 

unsigned char code tabb[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80}; 
unsigned char code tabc[]={0x00,0x00,0x38,0x44,0x44,0x44,0x38,0x00}; 
unsigned char code tabd[]={0xe7,0xdb,0xdb,0xdb,0xdb,0xdb,0xdb,0xe7}; 
unsigned char code tabe[]={0x7e,0xbd,0xdb,0xe7,0xe7,0xdb,0xbd,0x7e}; 
unsigned char code tabf[]={0x81,0x42,0x24,0x18,0x18,0x24,0x42,0x81}; 
void delay()
{
int n,m;
for(n=0;n<20000;n++);
for(m=0;m<30000;m++);
}

void delay1(void) 

{ 

  unsigned char i,j; 

  for(i=10;i>0;i--) 

  for(j=248;j>0;j--); 

} 

void delay2(void) 

{ 

  unsigned char i,j,k; 

  for(k=10;k>0;k--) 

  for(i=20;i>0;i--) 

  for(j=248;j>0;j--); 

} 

void main() 

{ 

  unsigned char i,j; 







for(j=0;j<8;j++)
{
P3=tabe[j];
P1=tabf[j];
delay1();
};






}