CD4094驅(qū)動程序

CD4094用的比較廣...可以用在靜態(tài)顯示...串口轉(zhuǎn)并口...驅(qū)動數(shù)碼管LED等...

程序...

#include
#include

#define uint? unsigned int
#define uchar unsigned char

/*
sbit K1?? =? P3^4;
sbit K2?? =? P3^5;
sbit K3?? =? P2^4;
sbit K4?? =? P2^5;
*/

sbit STR? =? P2^0;//定義CD4094各端口;
sbit DATA =? P2^1;
sbit CLK? =? P2^2;

//code unsigned char C51BOX2[3] _at_ 0x43;

void Out_4094(uchar data1);//CD4094寫數(shù)據(jù)子函數(shù);
void Delay(uint a);???? //延時子函數(shù);

???????? //主程序開始;
void main()
{
? uchar i;?????? //無限循環(huán);
? while(1)
? {
??? for(i=0;i<255;i++)??? //讓CD4094端口的LED不斷從0-255顯示;
???? {
?????? Delay(10000);??? //延時;
??? Out_4094(i);???? //調(diào)用顯示子函數(shù);
??? Delay(10000);??? //延時;
? }
? }
? //while(1);
}

void Out_4094(uchar data1) //寫CD4094子函數(shù);
{
? uchar i;?????? //定義子函數(shù);
? STR="0";?????? //保持然來的狀態(tài)不變;
? for(i=0;i<8;i++)???? //寫八位數(shù)據(jù)進CD4094;
? {
?? if(data1&0x01)???? //判斷并發(fā)串行數(shù)據(jù);
??? {
?? DATA="1";????? //發(fā)高電平;
?}
?else
?{
?? DATA="0";????? //發(fā)低電平;
?}
??? CLK="0";?????? //形成上升延脈沖;
?_nop_();
?_nop_();????? //延時;
?_nop_();
?CLK=1;
?data1>>=1;????? //數(shù)據(jù)移位,送下一位數(shù)據(jù);
?? }
?? STR="1";?????? //數(shù)據(jù)送完;更新顯示;
}

void Delay(uint a)???? //延時子函數(shù);
{
? uint b;
? for(b=0;b}