C51的一个小CODE，自己看了就知道了，适合初学着学习

RTL8019中文数据手册，不是原创，转载而已，不过内容不错！-RTL8019 Chinese manual data is not created, reproduced it, but the contents Yes!

脉冲宽度的测量，利用1602液晶显示，和4*4键盘输入，AT89C52单片机控制，实现对长脉冲宽度的测量-Pulse width measurement, the use of liquid crystal display 1602, and 4* 4 keyboard input, AT89C52 single-chip control, realize the long pulse width measurement

ZLG7289测试程序，用于调整你的程序，网站上下载的程序不能正常显示，使用ATMEL公司的Atmega单片机-ZLG7289 testing procedures used to adjust your procedures, site to download the program should not display properly, use the ATMEL ATmega company

本资料是本人在网上收集到的两款时钟芯片ds1302和sd2400的读写程序，适用于单片机开发时钟-This information is collected from the I-line two clock chip ds1302 and sd2400 literacy program for developing MCU clock

51单片机对AT45D041卡（大容量IC卡）的读写程序 把.rar改成.c即可-51 micro AT45D041 card (large-capacity IC card) reading and writing procedure. Rar changed. C can

DDS数字信号发生器,采用AD9835DDS 专用芯片 输出范围1K--10MHZ 采用X25045作看门狗及数据存储器，用于设置各项参数的存储 内含电路图， 源程序 及一些相关资料-DDS digital signal generator, using AD9835DDS ASIC output range 1K-- Knoxville watchdog for the use of X25045 and data memory, used to set various parameters of storage containing circuit, the source and related information

51单片机的按键程序，汇编编写，适合初学者-51 Single-chip key procedures, the compilation of the preparation, suitable for beginners

使用W77e58读写PCF8563时钟芯片，包含所有的子函数，均可以直接使用。-Use W77e58 literacy PCF8563 clock chip that contains all of the subroutine, can be used directly.

单片机和GPS接收机构成的车载卫星定位系统-Single-chip GPS receiver and the vehicle constitutes a satellite positioning system

CRC 算法原理及C 语言实现单片机和嵌入式系统使用-CRC algorithm principle and C language microcontroller and embedded systems use