51单片机的FIFO(先入先出)循环队列实现

串口扩展芯片，可以扩展单片机的串口，使单片机的串口由一个变为3个甚至更多，降低成本。

S3C2410 PCB LAYOUT的一些技巧-S3C2410 PCB LAYOUT some skills

开发环境为：iarEWARM5.20 语言为c语言 2378的启动文件，为EWARM5.20 例程中的文件 利用lpc2378的io口控制ocmj12232c-1液晶的程序。程序有详尽接口说明和完整的注释。ocmj12232c-1是st7920控制的显示模块。使用lpc2378移植的程序这是第一个。-Xi Yuan-kai为alas iarEWARM5.20 To:为c Pang Pang Sheng Sheng-hung 启 cavity 2378 ， glass text为bird

12232液晶控制（sed1520）驱动程序-12232 LCD control (sed1520) driver

MSP430单片机C语言应用程序设计实例精讲(2)-MSP430 Singlechip C language application design example精讲(2)

电话机的工作原理,有振铃电路,电话极性保护电路,还有双音多频发送接收电路-Telephone the working principle, has ringing circuit, Phone polarity protection circuit, as well as send DTMF receiver circuit

键盘程序。主要实现按一个键就在数码管上显示相应的数。本程序中，数码管是带地址的！ 主要子程序是键盘扫描程序！ 下面英文用工具译的！用的软件是keil-Keyboard procedures. The main achievement of the press of a button on the control in the digital display the corresponding number. This procedure, the digital control is intended to bring the address! The main subroutine is the keyboard scanning process! The following translation tools in English!

单片机C语言程序设计教程与实训源代码及图片 单片机C语言程序设计教程与实训源代码及图片-Single-chip C programming language tutorial with source code and Training Photos Single-chip C programming language tutorial with source code and Training Photos

用MSP430F149的普通输入输出口模拟SPI，读写FM25l256铁电的测试程序。-MSP430F149 with ordinary analog input and output mouth SPI, literacy FM25l256 ferroelectric testing procedures.

该时钟以24小时制显示时间，并可显示2000年至2049年之间的任何日期及星期，日期与时间经按键可相互切换，可输入8个闹钟时间设置，每个闹钟设置包括响铃的时间（小时与分钟）、对工作日有效还是对周末有效的标志，以及本项设置是否启用的标志等三部分。这8个闹钟设置均保存在EEPROM中，即使掉电也不用重新输入。-The 24-hour clock to display time, and shows from 2000 to 2049 and any date between the weeks, the date and time as may be mutually switch button, enter the eight alarm time settings, each set including the ringing of an alarm clock Duration (hours and minutes), the effective working days or weekends effective road signs, as well as whether or not to enable this setting, such as a symbol of three parts. This 8 alarm settings are stored in EEPROM, even brown-out do not have to re-enter.