代码搜索：4键触控
找到约 10,000 项符合「4键触控」的源代码
代码结果 10,000
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bmp 4.bmp
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asm 4.asm
;************************;
;八路模拟数据采集显示电路;
; 2001.10.08编 ;
;************************;
;
;70H-77H存放采样值，78H-7BH存放显示数据，依次为个位、十位、百位、通道标志
;
;*************************************
;*
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c 4.c
#include //预处理文件里面定义了特殊寄存器的名称如P1口定义为P1
void main(void)
{
//定义花样数据
const unsigned char design[32]={0xFF,0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F,
0x7F
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lst 4.lst
ASEM-51 V1.2 Copyright (c) 1996 by W.W. Heinz PAGE 1
MCS-51 Family Cross Assembler A S E M - 5 1
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asm 4.asm
ORG 0h
AJMP START
ORG 30h
START: MOV P1,#10111111B
SCANK: MOV P2,#0FFH
CLR P2.3 ;P2.3清0,扫描第1行
MOV A,P2 ;读键盘至A
ANL A,#00000111B
XRL A,#00000111B;判断A的低三位是否为1
JZ SCANL2 ;如果低三位为1，则无按键，转第二
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dsn 4.dsn
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pwi 4.pwi
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sdi 4.sdi
,,, ORG 0h
0000,01 30,, AJMP START
,,, ORG 30h
0030,75 90 BF,START,START: MOV P1,#10111111B
0033,75 A0 FF,SCANK,SCANK: MOV P2,#0FFH
0036,C2 A3,, C
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hex 4.hex
:020000000130CD
:100030007590BF75A0FFC2A3E5A0540764076021B7
:10004000E5A0540764076019E5A05407B4060574D9
:10005000000200CCB4050574010200CC7402020059
:10006000CC75A0FFC2A4E5A0540764076021E5A0F9
:10
www.eeworm.com/read/462598/7200117