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嵌入式触摸屏实验-Embedded touch-screen test

这些都是常用的通信设备的电路原理图，很多是高频电子线路的--Circuit diagrams for some commonly used communication devices. Many are operated under high frequency.

在ucos下的一个五子棋游戏，在触摸屏下实现，代码全部由注释。

基于89S51的IO口模拟串口通信，调试通过。-89S51-based simulation of the IO port serial communication, debugging through.

zigbee 2430 演示 就是个演示程序么 说这么多干嘛 晕-zigbee 2430 demo is a demo so much for doing what halo

mcs51单片机键盘扫描程序，很适合单片机初学者使用学习-Singlechip mcs51 keyboard scanning process, it is suitable for beginners to use single-chip learning

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采用美国adi公司的bf系列，基于bf533的ez-kit平台的跑马灯和数码管显示功能的代码-Adoption of the United States adi

本实验利用8253做定时器，用定时器输出的脉冲控制8259产生中断 在8259中断处理程序中，对时、分、秒进行计数，在等待中断的循 环中用LED显示时间。 8253用定时器/计数器1，8253片选接CS4，地址为0C000H。8253时钟 源CLK1接分频电路的F/64输出。分频器的Fin接4MHz时钟。8253的 GATE1接VCC。 8259中断INT0接8253的OUT1，片选接CS5，地址为0D000H。 显示电路的KEY/LED CS 接CS0，地址为08000H。-In this study, the use of 8253 to do the timer, using timer pulse output control 8259 generates an interrupt in 8259 interrupt handler, for hours, minutes and seconds count, waiting for interruption through ring using LED display time. 8253 with the timer/counter 1,8253 chip select access CS4, address 0C000H. 8253 clock source CLK1 of the F/64 then divider circuit output. Fin then 4MHz clock divider. 8253" s GATE1 then VCC. 8259 interrupt INT0 then 8253" s OUT1, chip select access CS5, address 0D000H. Display circuit of the KEY/LED CS access CS0, address 08000H.

软件代码阅读方法与实践 英文原版，Diomidis Spinellis 著-Software code reading method and practice of the original English edition, Diomidis Spinellis the