軟件使用說(shuō)明：1Proteus8TerminalMode2、KeilCProjectNewProject單獨(dú)建一個(gè)文件夾，然后命名這個(gè)文件夾，如“MyProject保存到該文件夾下；Atmel”→“AT89C51英文提示“是否添加啟動(dòng)代碼”，選擇“否”；建“cFileNewxxx.c”→“保存”；SourceGroup1AddFilestoGroupSourceGroup1cTarget1optionsforTarget“Target1“outputCreateHEX試驗(yàn)一、流水燈試驗(yàn)任務(wù)做單一燈的左移右移，硬件電路如圖4.4.1L1－L8的P1.0P1.70”時(shí)，發(fā)光二極管亮，開(kāi)頭時(shí)P1.0P1.1→P1.2→P1.3P1.7P1.6→┅→P1.0電路原理圖4.4.1系統(tǒng)板上硬件連線(xiàn)把“單片機(jī)系統(tǒng)”區(qū)域中的P1.0P1.78區(qū)域中的L1－L8P1.0對(duì)應(yīng)著L1，P1.1對(duì)應(yīng)著L2，??，P1.7對(duì)應(yīng)著L8。程序設(shè)計(jì)內(nèi)容我們可以運(yùn)用輸出端口指令MOVP1，A或MOVP1，＃DATA然后執(zhí)行上述的指令，即可到達(dá)輸出把握的動(dòng)作。每次送出的數(shù)據(jù)是不同，具體的數(shù)據(jù)如下表1P1.7P1.P1.5P1.P1.3P1.P1.1P1.0說(shuō)明642L8L7L6L5L4L3L2L111111110L111111101L211111011L311110111L411101111L511011111L610111111L701111111L8.2DELAY:MOVR6,#255匯編源程序ORG0000HMAIN:MOVA,#0FEHLOOP1:MOVR2,#8LOOP2:MOVP1,AACALLDELAYRLADJNZR2,LOOP2AJMPMAIN

DLY0:MOVR7,#255DLY1:NOPNOPNOPDJNZR7,DLY1DJNZR6,DLY0RET{chari;P1=0xff;7．Cwhile(1){#include<reg51.h>P1=0xff;voiddelayfor(i=0;i<8;i++){{inti;P1=~(0x01<<i);i=40000;delay;while(i--);}}}voidmain}試驗(yàn)二、定時(shí)計(jì)數(shù)器T0作定時(shí)應(yīng)用技術(shù)試驗(yàn)任務(wù)用AT89S51的定時(shí)/T022爍，每個(gè)指示閃耀的頻率為0.2L10.22L20.20.2時(shí)/T0電路原理圖系統(tǒng)板硬件連線(xiàn)

4.16.1U119XTAL118XTAL29RSTP0.0/AD0P0.1/AD1U119XTAL118XTAL29RSTP0.0/AD0P0.1/AD1P0.2/AD2P0.3/AD3P0.4/AD4P0.5/AD5P0.6/AD6P0.7/AD73938373635343332R1D1220LED-GREEN293031PSENALEEAP2.0/A8P2.1/A9P2.2/A10P2.3/A11P2.4/A12P2.5/A13P2.6/A14P2.7/A152122232425262728R2D2220LED-GREENR3D312345678220P1.0P1.1P1.2P1.3P1.4P1.5P1.6P1.7AT89C51P3.0/RXDP3.1/TXDP3.2/INT0P3.3/INT1P3.4/T0P3.5/T1P3.6/WRP3.7/RD1011121314151617LED-GREENR4D4220LED-GREEN程序設(shè)計(jì)內(nèi)容〔1/T0000BH，因此在中斷入口地方參與長(zhǎng)跳轉(zhuǎn)指令來(lái)執(zhí)行中斷效勞程序。書(shū)寫(xiě)匯編源程序格式如下所示：ORG0000HLJMPSTARTORG000BH ;定時(shí)/T0LJMPINT_T0START: NOP ;主程序開(kāi)頭..INT_T0:

PUSHACC

PUSHPSW..POPPSWPOPACCRETIEND

;定時(shí)/計(jì)數(shù)器T0中斷效勞程序;中斷效勞程序返回〔221650ms40250ms400.240.2〔3．由于每次2L1－L4IDID＝0時(shí)，L1ID＝1L2ID＝2L3ID＝3時(shí)，L4程序框圖主效勞程序框圖開(kāi)始開(kāi)始Count2S=0，Cnt02S=0，ID＝0TMOD＝01H，TH0，TL0裝入定時(shí)初值TR0＝1，ET0＝1，EA＝1等待中斷中斷程序框圖ID＝0ID＝1ID＝2ID＝3L1閃耀L2閃耀L3閃耀L4閃耀T0中斷入口T0中斷入口Count2S1Count2S=40嗎？Count2S=0ID1ID＝4嗎？ID＝0Cnt02S1Cnt02S=4嗎？Cnt02S=0中斷返回匯編源程序TCOUNT2STCNT02SID

EQU30HEQU31H

EQU32HORG00HLJMPSTARTORG0BHLJMPINT_T0START: MOVTCOUNT2S,#00HINT_T0:NEXT:SID1:SID2:SID3:SID4:DONE:

MOVTCNT02S,#00HMOVID,#00HMOVTMOD,#01HMOVTH0,#(65536-50000)/256MOVTL0,#(65536-50000)MOD256SETBTR0SETBET0SETBEASJMP$MOVTH0,#(65536-50000)/256MOVTL0,#(65536-50000)MOD256INCTCOUNT2SMOVA,TCOUNT2SCJNEA,#40,NEXTMOVTCOUNT2S,#00HINCIDMOVA,IDCJNEA,#04H,NEXTMOVID,#00HINCTCNT02SMOVA,TCNT02SCJNEA,#4,DONEMOVTCNT02S,#00HMOVA,IDCJNEA,#00H,SID1CPLP1.0SJMPDONECJNEA,#01H,SID2CPLP1.1SJMPDONECJNEA,#02H,SID3CPLP1.2SJMPDONECJNEA,#03H,SID4CPLP1.3SJMPDONERETIC#include<AT89X51.H>unsignedchartcount2s;unsignedchartcount02s;unsignedcharID;voidmain(void){

ENDTMOD=0x01;TH0=(65536-50000)/256;TL0=(65536-50000)%256;TR0=1;ET0=1;EA=1;while(1);}voidt0(void)interrupt1using0{tcount2s++;if(tcount2s==40){P1=0xff;tcount2s=0;ID++;if(ID==4){ID=0;}}tcount02s++;if(tcount02s==4){tcount02s=0;switch(ID){case0:P1_0=~P1_0;break;case1:P1_1=~P1_1;break;case2:P1_2=~P1_2;break;case3:P1_3=~P1_3;break;}}}試驗(yàn)任務(wù)

試驗(yàn)三、動(dòng)態(tài)數(shù)碼顯示技術(shù)4.13.1P0P2端，P1.712345示“HELLO”字樣。電路原理圖系統(tǒng)板上硬件連線(xiàn)

4.13.1〔1．把“單片機(jī)系統(tǒng)”區(qū)域中的P0.0/AD0P0.7/AD78a－h(huán)〔2．把“單片機(jī)系統(tǒng)”區(qū)域中的P2.0/A8P2.7/A158S1－S8〔3．把“單片機(jī)系統(tǒng)”區(qū)域中的P1.7SP1上；程序設(shè)計(jì)內(nèi)容〔1動(dòng)態(tài)接口承受各數(shù)碼管循環(huán)輪番顯示的方法，當(dāng)循環(huán)顯示頻率較高時(shí)，利用人眼的暫留特性，看不出閃耀顯示現(xiàn)象，這種顯示需要一個(gè)接口完成字形碼的輸出〔字形選擇〕，另一接口完成各數(shù)碼管的輪番點(diǎn)亮〔數(shù)位選擇〕?！?8示的不同數(shù)據(jù)即可?！?程序框圖開(kāi)頭開(kāi)頭K1按鍵識(shí)別成功否？置顯示“12345”字形碼首地址置顯示“HELLO”字形碼首地址置字形碼偏移量和位選代碼查表并送出顯示延時(shí)2ms，并指向下一個(gè)偏移量5個(gè)數(shù)碼管顯示完否？匯編源程序START:DIR1:DIR:

ORG00HJBP1.7,DIR1MOVDPTR,#TABLE1SJMPDIRMOVDPTR,#TABLE2MOVR0,#00H

4.13.2NEXT:

MOVR1,#11111110B;bitcodeMOVP2,#0FFHMOVA,R0DAY:D1:

MOVCA,@A+DPTRMOVP0,A;MOVA,R1;bitcodeMOVP2,ALCALLDAYINCR0RLAMOVR1,ACJNER0,#5,NEXTSJMPSTARTMOVR6,#4MOVR7,#248TABLE1:TABLE2:

DJNZR7,$DJNZR6,D1RETDB06H,5BH,4FH,66H,6DHEND7.C/****************************C程序*********************************************/#include<AT89X51.H>#defineucharunsignedcharsbitK1=P1^7;voiddelay_ms(ucharms);voidmain(void){unsignedcharcodetable1[]={0x06,0x5b,0x4f,0x66,0x6d,0x7D,0x07,0xff};//CCunsignedcharcodetable2[]={0x76,0x79,0x38,0x38,0x3f,0x00,0x00,0x00};//CCunsignedcharbitDisp[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};//bitdispunsignedchari;while(1){

”12345678””HELLO”P(pán)2=0xff;delay_ms(1);if(K1==1){delay_ms(5);if(K1==1){for(i=0;i<8;i++){P2=0xff;