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uchar code leddata[]={
0x3F, //"0"
0x06, //"1"
0x5B, //"2"
0x4F, //"3"
0x66, //"4"
0x6D, //"5"
0x7D, //"6"
0x07, //"7"
0x7F, //"8"
0x6F, //"9"
0x77, //"A"
0x7C, //"B"
0x39, //"C"
0x5E, //"D"
0x79, //"E"
0x71, //"F"
0x76, //"H"
0x38, //"L"
0x37, //"n"
0x3E, //"u"
0x73, //"P"
0x5C, //"o"
0x40, //"-"
0x00, //熄滅
0x00 //自定義
};
void delay(uint z)//毫秒延時
{
uint x,y;
for(x = z; x > 0; x--)
for(y = 114; y > 0 ; y--);
}
void display(uint s)//數(shù)碼管顯示程序
{
we=1;
P0=0x7f;//第一位數(shù)碼管顯示個位
we=0;
P0=0x0;
du=1;
P0=leddata[s%16];
du=0;
delay(5);/*這個延時必不可少,否則掃描太快,數(shù)碼管反應(yīng)不過來*/
P0=0xff;/*此處作用是消除數(shù)碼管殘影*/
we=1;
P0=0xbf;//第二位數(shù)碼管顯示十位
we=0;
P0=0x0;
du=1;
P0=leddata[s/16];
du=0;
delay(5);
P0=0xff;
}
//du數(shù)碼管段選 we 數(shù)碼管位選 P0 數(shù)據(jù)口 s要顯示的數(shù)(00~ff) |
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