点亮一盏灯include <>void main(){ P0=0初始化P0 P1=0x80 while(1) { P0_4=1点亮D0 } }闪亮一盏灯include <>void main(){ unsigned int i=0 P0=0 P1=0x0c0000 1100 P1_2=0244使能 while(1) { P0_4=1闪亮D0
<>int main(){int nint sum = 0 fact = 1printf(Please Enter N:)scanf(d n)累加for(int i = 1 i <= 2n - 1 i=2){for(int j = 1 j <= i j){fact = j}sum = factfact = 1}printf(Result:dn sum)return 0} <>int MyS
第二课:跟我来编一个最简单的单片机程序在汇编语言中让某个端口输出高电平或低电平都有专用的语句以端口为例: 让该端口输出高电平的语句是: SETB 让该端口输出低电平的语句是: CLR 好了现在我们将小灯接在单片机的端口上如下图所示: 图6由上图可知当端口输出高电平时小灯D不亮因为小灯中不会有电流通过当端口输出低电平时小灯就亮因为此时小灯中有电流通过 要让小灯亮一会儿灭一会儿还必须要有一个延时的
单片机程序include <>include <>extern float sqrt(float x)extern float exp(float x)extern float tan(float x)extern float cos(float x)extern float sin(float x)extern float log10(float x)void reset()void di
行线接-列线接-根据扫描键盘返回的键值编码查键值编码表从而得到键值并送数码管显示开机时数码管显示-当键按下时数码管显示按下键的键值蜂鸣器响一声 include <>include <>define uchar unsigned chardefine uint unsigned intsbit BEEP = P36 蜂鸣器驱动线uchar keyunsig
1. 延时跑马灯 ORG 0 AJMP MAINMAIN: MOV SP5FH MOV DPTRTAB LOOP0: MOV A0 MOV R28LOOP: MOV BA MOVC AADPTR MOV P0A LCALL DEL MOV AB INC A
5include <>void delay(void){unsigned int aa=55400while(a--)}void main(){while(1){P0=0xfe11111110delay()P0=0xffdelay()}}61include <>sbit led0=P00sbit led1=P01sbit led2=P02sbit led3=P03sbit led4=P04sbit
#
ORG0000HLJMPSTARTORG001BHT1中断入口地址LJMPINTT1ORG0030HSTART:MOVR717定时1S循环次数MOVR660秒钟定时60SMOVR560分种钟定时60SMOVR424时钟定时60SMOVSP30H设置栈底movp00ffh读P0口数据初始化(读引脚)ACALLDISPLAY1显示初始化acallDISPLAY2显示初始化acallDISPLAY3显示
8255数码管滚动显示20120818ALE的作用:访问片外存储器时ALE为有效高电平P0口可做外部地址锁存器的锁存信号include<>include<>define uint unsigned intdefine uchar unsigned chardefine PA XBYTE[0xfff8] 1111 1111 111 1000 define PB XBYTE[0xfff9]
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