Clock PCF8563 51 procedures, debugging, and can be used.

FlashFlex51单片机

在外部环境中检测亮度，温湿度，其中带232及485控制-Detected in the external environment brightness, temperature and humidity, which with 232 and 485 control

St7920串口驱动12864 KeilV51很实用

关干高速PCB设计的设计技巧，PCB硬件开发指南。-Dry off the design of high-speed PCB design techniques, PCB hardware development guide.

PDIUSBD12 USB1.1 C51源代码-PDIUSBD12 USB1.1 C51 source code

采用4046实现的10m以下信号的锁相环 电路图。-used to achieve the 4046 10m below the signal phase-locked loop circuit.

串口通讯的XModem协议源码，有兴趣的朋友可以参考！-serial communications IEEE-source agreement, interested can refer friends!

0802液晶 0802液晶-0802 LCD 0802 LCD

STC单片机IO口模拟RS232测试程序,Keil Cx51应用开发技术中的程序主要的功能是在利用串口调试工具发送一个8bit的数据，而后单片机接收后把这个数据发送给模拟串口-STC Single-chip analog IO port RS232 test procedures, Keil Cx51 technology application development process is essentially the function is in the use of serial debug tools send an 8bit data, and then after the single-chip receive the data sent to the simulation of serial

提出了一个由AT89C52单片机控制步进电机的实例。可以通过键盘输入相关数据, 并 根据需要, 实时对步进电机工作方式进行设置, 具有实时性和交互性的特点。该系统可应用于 步进电机控制的大多数场合。实践表明, 系统性能优于传统的步进电机控制器。-Put forward a AT89C52 single-chip stepper motor control example. Through the keyboard input data, and in accordance with the needs of real-time work on the stepper motor set up, with real-time and interactive features. The system can be applied to stepper motor control of the majority of occasions. Practice shows that system performance is superior to traditional stepper motor controller.