奇怪了？index的值怎么不变化呢？大神来看看吧

只看该作者 · 2015-9-25 22:48

源码如下
#include<reg52.h>
#include <intrins.h>
sbit SI_595=P2^1;
sbit RCK_595=P2^2;
sbit SCK_595=P2^0;
unsigned char i=0;
unsigned char code ledchar[]={
0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8,
0x80, 0x90, 0x88, 0x83, 0xC6, 0xA1, 0x86, 0x8E
};
void HC595SendData(unsigned char SendVal);
void HC595ShowData();
void main()
{
unsigned char index=0;
EA=1;
TMOD=0X01;
TH0=0XFC;
TL0=0X67;
ET0=1;
TR0=1;
HC595SendData(0xFF);
      HC595ShowData();
while(1)
{
if(i>=1000)
{
i=0;
index++;
if(index>=16)
{
index=0;
}
}
HC595SendData(ledchar[index]);
HC595ShowData();
}
}
void HC595SendData(unsigned char SendVal)//发送数据
{
unsigned char j;
for(j=0;j<8;j++)
{
if((SendVal<<j)&0x80)
SI_595=1;
else
SI_595=0;
SCK_595=0;
_nop_();
SCK_595=1;
}
}
void HC595ShowData()
{
RCK_595=0;
_nop_();
RCK_595=1;
}
void intertupttimer0() interrupt 1
{
TH0=0XFC;
TL0=0X67;
i++;
}

只看该作者 · 2015-9-25 23:39

已解决

只看该作者 · 2015-9-26 07:31

看了帖子，我只想说一句很好很强大！

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奇怪了？index的值怎么不变化呢？大神来看看吧

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