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通过AD0809将输入的模拟量转化为数字量， 通过调节电位器来改变模拟电压输入，通过数码管显示电压的变化-Through the AD0809 analog input into digital, By adjusting the potentiometer to change the analog voltage input, digital display voltage changes

2051解码GPS数据装置的源代码,有详细的中文注释，是初次接触GPS解码开发人员不错的参考资料-GPS data decoding device 2051 source code, the Chinese have detailed notes, is the initial contact with GPS decoder developers good reference

C51单片机上的嵌入式操作系统,具有任务调度,文件服务,等功能-C51 MCU embedded operating system, with task scheduling, documentation services, etc.

介绍了在使用pdiusbd12进行usb开发时常遇到的问题以及回答。-Describes the development of the use of pdiusbd12 to usb problems and to answer questions from time to time.

飞思卡尔智能小车 AD驱动程序示例代码 芯片为MC9S12XS128-AD Freescale" s Smart car driver sample code chip MC9S12XS128

数字温度传感器DS18B20的汇编程序，调试可用-Digital temperature sensor DS18B20 the assembler, debugging can be used

凌阳最出的超声波测距模组，通过555产生40KHz的超声波，有SPE061A单片机控制超声波的发射和接收，最初的版本在程序方面比第二版本来得简单，主要是通过了硬件电路减少了程序，附电路图、PCB图等-Sunplus most of the ultrasonic ranging modules, 40KHz generated through 555 of the ultrasound, ultrasound has SPE061A single-chip microcomputer to control the transmitting and receiving an initial version of the procedure than the second version is more simple, mainly through the reduction of hardware circuit procedures, with schematics, PCB map

程序包括的内容是单片机与电脑通过串口通讯的程序，读者可以很容易将此代码移植到自己的系统上。-Procedures, including the content is single-chip serial communication with the computer through the process, readers can easily transfer this code to your system.

在C8051中用I/O口模拟SPI的C代码.-using I/O simulation SPI C code.

430学习书籍,好东西,希望大家下载-430 learning books, good things, I hope everyone downloads