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用8253芯片和单片机产生方波，很好的理解并学习8253芯片的功能。(8253 chip and microcontroller to generate a square wave, a good understanding and learning the function of the 8253 chip.)

电力系统电度表通讯协议，主要针对DL645协议标准(Power system meter communication protocol, mainly for DL645 protocol standards)

中_大功率EMA伺服控制技术与动态性能研究(EMA in power and dynamic performance servo control technology research)

W78E58B单片机参数手册，英文版资料(Singlechip parameters W78E58B manual, English version of the information)

串口与pc机通讯，51单片机例程，只需要修改io口即可实现。(Serial communication with pc, 51 MCU routine, you only need to modify the io port can be realized.)

博世 Bmi160驱动串口输出，spi读取(Bosch Bmi160 drive serial output, spi read)

说明：  C51系列，用C语言编写，驱动1601液晶显示器(C51 series, with the C language, driving liquid crystal display 1601)

99秒马表，在Proteus设计两个数码管动态显示及一个键盘SP。在ucos下结合keil完成开始时，显示“00”，第1次按下SP后就开始计时。 第2次按SP后，计时停止。第3次按SP后，计时归零。 (99 seconds stopwatch, two in the Proteus design dynamic digital tube display and a keyboard SP. Keil in combination ucos completed under the beginning of the show " 00" , 1st timer after pressing the SP. 2nd by SP, the time to stop. The 3rd by the SP, the time zero.)

新唐nano100参考示例代码，很有参考价值 (New tang nano100 reference sample code, is of great reference value)

C8051F040的片内资源所有源码,很适用(C8051F040-chip resources of all source code, it is applicable)