利用52单片机通过8254定时器实现控制电机的PWM调速程序，可实现开始，停止，加速，减速。

本程序为某企业的税控机固件程序.基于东芝TMP93CS41 16位单片机编写,符合国家标准.该程序已经经过多次长期调试.-the procedures for a business tax control machines firmware procedures. Based on Toshiba TMP93CS41 16 MCU development, in line with the national standard. The program has after many long debugging.

实现ATmel公司的支持SPI总线的存储芯片AT45DB011B的存取操作，kei c编写环境-Realize Atmel

内容为89c52单片机的基本实验 内容涵盖比较多 所采用的实验板是网上和容易找到的TX-1C。是新手比较好的参考资料-89c52 microcontroller content covers the basic experiments are more used in experimental board is easy to find online and the TX-1C. Is a good reference novice

全国飞思卡尔智能车大赛中，关于pwm方面的源代码-Freescale national smart car competition, with regard to aspects of the source code pwm

protel99做的电力载波采集器硬件原理图,PCB图-Does the power line carrier protel99 hardware schematic capture, PCB map

MSP430 串口通讯 利用查询实现，经运行通过-MSP430 serial communication using Query, running through

用于手持时钟受时，时钟芯片的工作稳定性，以D18B20温度传感器的采集，微调时钟芯片的内置电容，改变震荡频率-For hand-held by the clock, the clock chip of job stability to temperature sensor D18B20 collection, fine-tuning of the built-in clock chip capacitors to change the vibration frequency

使用RTX-51 tiny操作系统的em12864液晶驱动程序-use RTX-51 operating system em12864 tiny LCD Driver

交通信号控制keil源码-traffic signal control Keil FOSS

51单片机浮点子程序库(小),直接嵌入,方便使用.-51 single-chip floating-point subroutine library (small), directly embedded, user-friendly.