精度为20位的数模转换芯片CS5503数据手册，有需要的朋友可以下来...

本设计主要是运用单片机设计一个最小系统――电子时钟，它具有24小时计时功能，能够对时间进行调整，并且能实现时、分、秒的显示，同时还有内设闹钟，时间到时候会响铃，响铃时可以通过按键控制延时再启动或关断。与此同时还设置了整点报时功能；并采用采用了软件去抖的方法扫描键盘，动态刷新显示数码管，并通过查表实现译码输出时间等编程方法；-This design is the use of single-chip design of a minimum system- Electronic clock, it has a 24-hour timer function, capable of time to adjust, and can achieve the hours, minutes and seconds display, but also equipped with alarm clocks, time to When ringing the bell to ring when the button control can delay re-start or shutdown. At the same time also set up the whole point timekeeping function and adopt the use of the software to scan the keyboard shaking method, dynamic refresh display digital tube, and through the realization of decoding look-up table output time programming method

单片机测试串口通信程序，使用KEIL　ｃ进行开发，适合初学者学习-microcontroller serial communications testing procedures, the use of KEIL c develop suitable for beginners learning

宏晶公司单片机的下载程序，支持ISP下载，支持自定义ISP，那包含串口调试软件-Acer crystal company SCM download and support ISP download, support custom ISP, it contains the serial debugging software

c8051f系列单片机pwm控制必备源程序，无密码，解压缩即可-c8051f Series MCU PWM control essential source, no password, can decompress

单片机控制光驱程序，通过按键实现光驱的播放，暂停，出仓，快进，后退等功能-SCM control procedures drive, drive through the realization of the key players, suspended from the warehouses, fast forward, rewind functions

利用8051完成读写紧凑型闪存卡文件系统的实现

系统采用52单片机作为系统核心处理器，通过串口手法图像数据，利用那个TR800最为GSM模块，接收和发送图片。-System uses 52-core processor as the system microcontroller via serial port means the image data, using that TR800 most GSM module, to receive and send pictures.

高速电路信号完整性问题，有一定的参考价值-Based on the Signal Integrality theory, the key problem met during signal processing module design and its solution is given

一个在89c52单片机上实现的多路温度采集通信程序-A 89c52 single-chip to achieve the multi-channel temperature acquisition Communication Program

rc500 c语言库函数，对RC500的开发提供了捷径-rc500 c language library functions, the development of RC500 provides a shortcut