单片机驱动4X4矩阵式键盘输入程序.doc

Forpersonaluseonlyinstudyandresearch;mercialuse单片机驱动4X4矩阵式键盘输入程序用AT89S51单片机的并行口P1接4×4矩阵键盘,-,-;在数码管上显示每个按键的“0-F”序号。实现键盘输入的识别。我将给大家提供c和汇编两个版本的4X4矩阵式键盘输入程序。如果网页上不清楚点此处下载本键盘输入程序源代码汇编语言源程序:00HSTART:MOVKEYBUF,#2WAIT:MOVP3,#,P3ANLA,#0FHXRLA,#0FHJZNOKEY1LCALLDELY10MSMOVA,P3ANLA,#0FHXRLA,#0FHJZNOKEY1MOVA,P3ANLA,#0FHCJNEA,#0EH,NK1MOVKEYBUF,#0LJMPDK1NK1:CJNEA,#0DH,NK2MOVKEYBUF,#1LJMPDK1NK2:CJNEA,#0BH,NK3MOVKEYBUF,#2LJMPDK1NK3:CJNEA,#07H,NK4MOVKEYBUF,#3LJMPDK1NK4:NOPDK1:MOVA,KEYBUFMOVDPTR,#TABLEMOVCA,***@A+DPTRMOVP0,ADK1A:MOVA,P3ANLA,#0FHXRLA,#0FHJNZDK1ANOKEY1:MOVP3,#,P3ANLA,#0FHXRLA,#0FHJZNOKEY2LCALLDELY10MSMOVA,P3ANLA,#0FHXRLA,#0FHJZNOKEY2MOVA,P3ANLA,#0FHCJNEA,#0EH,NK5MOVKEYBUF,#4LJMPDK2NK5:CJNEA,#0DH,NK6MOVKEYBUF,#5LJMPDK2NK6:CJNEA,#0BH,NK7MOVKEYBUF,#6LJMPDK2NK7:CJNEA,#07H,NK8MOVKEYBUF,#7LJMPDK2NK8:NOPDK2:MOVA,KEYBUFMOVDPTR,#TABLEMOVCA,***@A+DPTRMOVP0,ADK2A:MOVA,P3ANLA,#0FHXRLA,#0FHJNZDK2ANOKEY2:MOVP3,#,P3ANLA,#0FHXRLA,#0FHJZNOKEY3LCALLDELY10MSMOVA,P3ANLA,#0FHXRLA,#0FHJZNOKEY3MOVA,P3ANLA,#0FHCJNEA,#0EH,NK9MOVKEYBUF,#8LJMPDK3NK9:CJNEA,#0DH,NK10MOVKEYBUF,#9LJMPDK3NK10:CJNEA,#0BH,NK11MOVKEYBUF,#10LJMPDK3NK11:CJNEA,#07H,NK12MOVKEYBUF,#11LJMPDK3NK12:NOPDK3:MOVA,KEYBUFMOVDPTR,#TABLEMOVCA,***@A+DPTRMOVP0,ADK3A:MOVA,P3ANLA,#0FHXRLA,#0FHJNZDK3ANOKEY3:MOVP3,#,P3ANLA,#0FHXRLA,#0FHJZNOKEY4LCALLDELY10MSMOVA,P3ANLA,#0FHXRLA,#0FHJZNOKEY4MOVA,P3ANLA,#0FHCJNEA,#0EH,NK13MOVKEYBUF,#12LJMPDK4NK13:CJNEA,#0DH,NK14MOVKEYBUF,#13LJMPDK4NK14:CJNEA,#0BH,NK15MOVKEYBUF,#14LJMPDK4NK15:CJNEA,#07H,NK16MOVKEYBUF,#15LJMPDK4NK16:NOPDK4:MOVA,KEYBUFMOVDPTR,#TABLEMOVCA,***@A+DPTRMOVP0,ADK4A:MOVA,P3ANLA,#0FHXRLA,#0FHJNZDK4ANOKEY4:LJMPWAITDELY10MS:MOVR6,#10D1:MOVR7,#248DJNZR7,$DJNZR6,D1RETTABLE:DB3FH,06H,5BH,4FH,66H,6DH,7DH,07HDB7FH,6FH,77H,7CH,39H,5EH,79H,71HENDC语言源程序:#includeunsignedcharcodetable[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};unsignedchartemp;unsignedcharkey;unsignedchari,j;//我的程序没有注释,不