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发表于 2019-6-26 11:30:14
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显示全部楼层
void check()
{
unsigned char i,j,counter;
unsigned char cache,cache_1;
unsigned char c;
for(i=2;i<10;i++)
{
counter=0;
cache=g_ucData[i];
cache_1=g_ucData[i];
for(j=0;j<4;j++)
{
cache&=0x80; //计算有几个1
if(cache==0x80)
{
counter++;
}
cache_1 <<=1;
cache=cache_1;
}
if((counter==0) ||(counter==2) ||(counter==4))
{
check_bit=0;
}
else if((counter==1) || (counter ==3))
{
check_bit=1;
}
c=g_ucData[i];
c&=0x08;
if(c==0x08)
{
PC_bit=1;
}
else
{
PC_bit=0;
}
if(check_bit==PC_bit)
{
flag= 1; //表示检验正确
}
else
{
flag=0;
LED_ON;
}
if(flag==0)
{
return;
}
}
}
怎么感觉有问题,不符合的也可以打印出来 大神帮我看看呗 |
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