74ls164動(dòng)態(tài)驅(qū)動(dòng)多位數(shù)碼管

1、74ls164能否動(dòng)態(tài)驅(qū)動(dòng)多位數(shù)碼管voiddisplay()/數(shù)碼顯示SCON=0;/初始化串行口方式SBUF=dispcodege;while(!TI);TI=0;led4=0;delay(2);led4=1;SBUF=dispcodeshi;while(!TI);TI=0;led3=0;delay(2);led3=1;SBUF=dispcodebai;while(!TI);TI=0;led2=0;delay(2);led2=1;SBUF=dispcodeqian;while(!TI);TI=0;led1=0;delay(2);led1=1;SBUF=dispcodewan;while(!

2、TI);TI=0;led0=0;delay(2);led0=1;741S164數(shù)碼管WT第二個(gè)程序)#defineclockPORTD.1#definedatePORTD.0#defineclock_enDDRD.1#definedate_enDDRD.0unsignedcharlab210=0x03,0x9F,0x25,0x0D,0x99,0x49,0x41,0x1F,0x01,0x09,0x02,0x9E,0x24,0x0C,0x98,0x48,0x40,0x1E,0x00,0x08;voidsend(unsignedcharw)unsignedchari;for(i=0;i<8;i

3、+)clock=0;date=w&1;clock=1;w=w>>1;return;voidxianshi(longw,unsignedcharweishu)unsignedchari,j;bitflag=0;clock_en=1;date_en=1;if(w<0)flag=1;w=-w;for(i=0;i<8;i+)/8次循環(huán)if(w!=0)if(i!=weishu)j=lab0w%10;elsej=lab1w%10;if(w=0)if(i=0)j=0x03;/當(dāng)數(shù)值直接是0if(i<=weishu)if(i<weishu)j=0x03;if(i=w

4、eishu)j=0x02;elseif(flag)j=0xdf;/show負(fù)號(hào)elseif(i!=O)j=Oxff;/oxff就不顯示flag=0;send(j);w=w/10;/每顯示一位，除10return;51單片機(jī)接74ls164驅(qū)動(dòng)數(shù)碼管的C程序#include<regx52.h>sbitsclk=P2A0;sbitsda=P2Al;sbitslck=P2A2;inttab10=0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F;voiddelay()inti,j;for(i=0;i<255;i+)for(j=0;j&

5、lt;80;j+);voidbit_dat(biti)sclk=0;sda=i;sclk=1;voiddat(chari)slck=0;bit_dat(bit)(tabi&0x80);bit_dat(bit)(tabi&0x40);bit_dat(bit)(tabi&0x20);bit_dat(bit)(tabi&0x10);bit_dat(bit)(tabi&0x08);bit_dat(bit)(tabi&0x04);bit_dat(bit)(tabi&0x02);bit_dat(bit)(tabi&0x01);slck=1;m

6、ain()inti;while(1)for(i=0;i<10;i+)dat(i);delay();i=0;39P0.0/AD0P0.1/AD1P0-AD2P0:.3/ADSP0.4/AD4P0：5/AD5P0.6/ADP0.7/AD7P2：0/AP2.1/A9P2.2/A10P2SZA11P2.4/A12P2:5/A1'3Pi6/A14P17/A15P3.0/RXDP3.1fTXDP3<27iNTO證3S2:12-223+5v.U1痢H:GP00DS"Q1Q2-J-S.T_CPQ4Q5?Q6MR'Q7SeQ7.1-5610l"74HQ595122

7、1411115P3-.NT1Pi4/?0P3：.5/T1g/*/*74LS164數(shù)碼管動(dòng)態(tài)顯示*/*/庫(kù)函數(shù)聲明，管腳定義#include<at89x51.h>#defineucharunsignedcharsbitsimuseri_CLK=P1T;用P1A1模擬串口時(shí)鐘sbitsimuseri_DATA=P1A0；用P"。模擬串口數(shù)據(jù)sbita0=ACCA0;unsignedcharcodedis_code11=0x28,0x7E,0xa2,0x62,/查表顯示0,1、90x74,0x61,0x21,0x7A,0x20,0x60,0x01;ucharnumer,temp

8、;ucharge,shi;/函數(shù)名稱：out_simuseri/輸入?yún)?shù)：data_buf/輸出參數(shù)：無(wú)/功能說(shuō)明：8位同步移位寄存器，將data_buf的數(shù)據(jù)逐位輸出到simuseri_DATA/voidout_simuseri(uchardata_buf)uchari;i=8;ACC=data_buf;dosimuseri_CLK=0;simuseri_DATA=a0;simuseri_CLK=1;ACC=ACC>>1;while(-i!=0);/*/voiddelay(ucharms)/延時(shí)程序uchari;while(ms-)for(i=0;i<125;i+);/*/

9、voidmain()ucharm;while(1)for(temp=0;temp<99;temp+)ge=temp/10;shi=temp%10;for(m=0;m<20;m+)/顯示頻率200ms加1次P2_0=0;/位段碼numer=dis_codege;out_simuseri(numer);/個(gè)位移位顯示delay(5);P2_0=1;P2_1=0;numer=dis_codeshi;/十位移位out_simuseri(numer);delay(5);P2_1=1;m=0;第二個(gè)程序74HC164是個(gè)移位寄存器，以下程序是我用過(guò)的，絕對(duì)沒問題:其中ShowData為164數(shù)

10、據(jù)腳，ShowClck為164時(shí)鐘腳；voidShow_164(unsignedchar_ShowValue)unsignedcharCount0;for(Count0=0;Count0<=7;Count0+)if(_ShowValue&0x80)=0x80)ShowData=1;elseShowData=0;_ShowValue<<=1;ShowClck=0;_nop_();_nop_();ShowClck=1;簡(jiǎn)易液率計(jì)P1.0)T2P1.1/T2EXPO.O/ADOP0.1/AD1P0.2/AD2P0.3/AD3P0.4/AD4P0.5/AD5P0.6/AD6P

11、0.7/AD7P2.0/A8P2.1/A9P2.2/A10P2.3/A11P2.4/A12P2.5/A13P2.6/A14P2.7/A15P3.0/RXDP3.inXDP3.2/INT0P3.3/iNTTP3.4)T0P3.5)T1P3.6/WRP3.7/RD37"i 353433 322122 232425 2627201077n73U751677基于51單片機(jī)的簡(jiǎn)易數(shù)字頻率計(jì)要求使用定時(shí)計(jì)數(shù)器作定時(shí)用，定時(shí)；定時(shí)計(jì)數(shù)器作計(jì)數(shù)器用，被計(jì)數(shù)的外部脈沖從（）接入。單片機(jī)將在1求程序。懸賞分：30內(nèi)對(duì)脈沖計(jì)數(shù)并送四位數(shù)碼管顯示，最大計(jì)數(shù)顯示值為。解決時(shí)間：最佳答案：這是個(gè)簡(jiǎn)易頻率計(jì)，程序

12、如下計(jì)數(shù)定時(shí)執(zhí)行一次重（新6寫5入5初3始6值外接74系列驅(qū)動(dòng)電路就行，比如74LS164或74LS138。動(dòng)態(tài)掃描就是給各個(gè)數(shù)碼管依次顯示，任意時(shí)間只有一個(gè)數(shù)碼管亮，但閃爍的太快了，人眼分辨不出，給人的感覺就是每個(gè)數(shù)碼管都在亮。一般過(guò)程就是賦值，開顯示，延時(shí)，關(guān)顯示，這是我以前寫過(guò)的程序#include<REGX52.H>main()unsignedinti;while(1)P0=0x3f;個(gè)位賦值P1_0=0;開顯示for(i=0;iv2;i+);延時(shí)P1_0=1；關(guān)顯示P0=0x6;十位P1_1=0;for(i=0;iv2;i+);P1_1=1;P0=0x5b;/百位P1_2=0;for(i=0;iv2;i+);P1_2=1;P0=0x4f;千位P1_3=0;for(i=0;iv2;i+);P1_3=1;這個(gè)是4位數(shù)碼管，P0口接賦值端，P1口低四位接4個(gè)數(shù)碼管的選通端，你要八個(gè)的話就把P1口的高四位再接到另外四個(gè)數(shù)碼管的片選端，程序仿照就可以了p0口接