myrj

摘要： 不同频率晶振产生的机器周期不一样：公式为：机器周期=晶振频率/12,这是在该晶振频率下每秒产生多少M机器周期。如当晶振频率为11.0592M的晶振。则每秒可产生机器周期为11.0592/12=0.9216M的机器周期，也就是921600个机器周期。50ms等于0.05秒，所以需要921600*0.0 阅读全文

摘要： @echo off&setlocal enabledelayedexpansionfor /f "tokens=1-3 delims=-:/ " %%a in ("%date%") do (set Y=%%a&set M=%%b&set D=%%c&if "!M:~0,1!"=="0" set M= 阅读全文

摘要： #include <reg51.h> #define uchar unsigned char #define uint unsigned int sbit led1=P1^0; sbit led2=P1^1; sbit led3=P1^6; sbit led4=P1^7; sbit key1=P3^ 阅读全文

摘要： #include <reg51.h> #define uchar unsigned char #define uint unsigned int sbit led1=P1^0; sbit led2=P1^3; sbit k1=P3^2; sbit k2=P3^3; uchar num0,num1; 阅读全文

摘要： 安装AE,出错，不能完成安装.打开提示信息显示如下： EXIT CODE :34 please see specific errors below for troubleshooting. fatal:payload 'Camera Profiles Installer .....informati 阅读全文

摘要： #include <reg51.h> #define uchar unsigned char #define uint unsigned int sbit led1=P1^0; uchar num; void main() { TMOD=0x01; //设置定时器0位工作模式1(M1,M0位0，1) 阅读全文

摘要： #include<reg51.h> #define uchar unsigned char uchar cnt; sbit fmq=P2^5; sbit key=P3^2; void t0isr() interrupt 1 { TH0=(65536-50000)/256; TL0=(65536-50 阅读全文

摘要： #include "reg52.h" typedef unsigned char u8; typedef unsigned int u16; sbit beep = P2^5; void delay(u16 i) { while(i--); } void main() { while(1){ bee 阅读全文

摘要： 11.0592M Hz，工作方式1: 50ms 4C00 5ms EE00 1ms FC66 0.5ms FE33 0.2ms FF47 0.1ms FFA3 0.05ms FFD1 0.01ms FFF6 12MHZ 50ms 0x3cb0 (65536-50000)/256:0X3C (6553 阅读全文

摘要： #include<reg51.h> #define uchar unsigned char; #define uint unsigned int; uchar position; uchar tt; uchar second; uchar minute; uchar hour; uchar code 阅读全文