用单片机实现电子钟功能，供初学者学习单片机使用

MCS-51单片机有5个中断源，其中两个是由-INT0、-INT1引脚输入的外部中断源；另外三个是内部中断源即由T0、T1的溢出引起中断和串行口发送完一个字节或接收到一个字节数据引起中断。触发外部中断有两种方式，即下降沿引起中断或低电平引起中断。当编程TCON中的ITi（i=0、1）为1时，则引起触发的方式为边沿触发方式，反之(ITi=0)为低电平触发方式。每个中断源的中断请求能否得到响应要受两级“开关”的控制，即一个总“开关”-MCS-51 single-chip has five interrupt sources, two of which are by-INT0,-INT1 pin input external interrupt source the other three internal interrupt sources from the T0, T1 overflow caused by the disruption and serial port sending or receiving end of a byte to a byte of data caused by interruption. Triggered external interrupt has two modes, namely, falling edge or low-level disruption caused disruption caused. When programming TCON in ITi (i = 0,1) for the 1:00 has been the subject of a way to trigger the way to the edge of the trigger, on the contrary (ITi = 0) for low-level trigger mode. Each interrupt source interrupt request can be subject to levels in response to

msp430f149的A/D转换。单通道单次转换和时钟模块操作的程序-msp430f149 A/D converter. Single-channel switch and clock module operating procedures

flow of ic design是一个很好的关于如何去设计ASIC的的教程，虽然是英文的，但是很容易看明白。是每一个想在EDA领域有作为的人都应看的教程！-flow of IC design is a good design on how the ASIC Guide, in English, but can easily understand this. Every one of the EDA to the field as a person should look at the handbook!

//115.2k串行口通信程序，校验方式为简单双向校验, //而且是必要的，因为任何采用中断、crc等的方法 //均很难保证速度和避免错误. //总体速度5KB/秒 //单片机程序 //使用22.1184晶振-//115.2k serial port communication procedures and testing methods for the simple two-way check,// it is necessary, because any interruption used, the method crc// it is very difficult to ensure speed and avoid mistakes.// Overall speed 5KB/s// MCU procedures// crystal use 22.1184

基于DS18B20温度测量系统-Temperature measurement system based on DS18B20

LCD显示模块C51源程序-C51 LCD display module source

OSD开发和软件控制,不同环境平台做法,通用平台应用-OSD development and software control, the different environmental platform approach, universal platform for applications

A Bubble Sort - This is a sort that can be used on small numbers of records. Bubble Sorts file orig.txt in the application path.-A Bubble Sort- This is a sort that can be used on small numbers of records. Bubble Sorts file orig.txt in the application path.

这是单片机编程的一些资料，让大家一起看看吧-MCU programming information, so we take a look at it

AD转换用的很广泛的一款芯片的资料，觉得好分享了 大家用得时候可以尽管下！-AD converter is used in a wide range of information on a chip that everyone shared a good time can be used even though the next!