基于AT89Ｃ５１定时器的使用

ID:342728 · 发表于 2018-6-1 17:15

  #include<reg52.h>
#define uchar unsigned char
#define uint  unsigned int

uint Count = 0;
uchar code table[10] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
void Time0_Init()
{
TMOD = 0x01;
TH0  = 0x4c;
TL0 = 0x00;
ET0 = 1;
EA = 1;
TR0 = 1;
}

void Time0_Int() interrupt 1
{
TH0  = 0x4c;
TL0  = 0x00;
Count++;
}

void main()
{
uchar i = 0;
Time0_Init();
P2 = 0xfe;
while(1)
{
P0 = table[i % 10];
if(Count == 20)
{
Count = 0;
i++;
}
}
}

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