一种基于新型时钟芯片的时钟设计方法.时间稳定准确.

MSP430 F149的单片机 键盘 便于相应计时器的操作-MSP430 F149 microcontroller keyboard to facilitate operation of the corresponding timer

该软件是一个温度测量软件.并且可以直接生成二进制代码写入单片机中,不需再改动,即可以和计算机进行通信,是学习和参考的好资料.-The software is a temperature measurement software. And can directly generate binary code into SCM, no need for further changes that can and computer communications, and learning is a good reference information.

这是一个GPS方面的资料，可供想在嵌入式方面编程的人员参考-This is a GPS information, can be like in the embedded programming staff members

用C语言通过MCS-51 的并口控制打印 用于 沈阳新荣达电子 微型打印机-Using C language through the MCS-51 for the parallel port to control print Shenyang New??electronic micro-printer

功能描述： 利用AT89S51单片机的T0、T1的定时计数器功能，来完成对输入的信号进行 频率计数，计数的频率结果通过8位动态数码管显示出来。要求能够对2－40KHZ 的信号频率进行准确计数，计数误差不超过2/1-Functional Description: Using AT89S51 MCU T0, T1 timing counter function, to complete the input signal frequency counting, counting the frequency of 8 resulted in the adoption of dynamic digital tube display. Request to the 2-40KHZ signal frequency accurately count, counting error of less than 2/1

pc机串口通信，可以实现计算机与单片机，或者是两个单片机之间的通信-the communication through PC serial, between PC and SCM, or two SCM

该头文件配合key.c，在main函数中调用key.c，都文件中添加key.h，使软件更清晰，一目了然-The header file with key.c, in the main function call key.c, all files add key.h, so that software is more clear at a glance

USB鼠标,单片机的,可以-USB mouse, SCM can be

采用80C51单片机为控制核心，利用超声波传感器检测道路上的障碍，控制电动小汽车的自动避障，快慢速行驶，以及自动停车，并可以自动记录时间、里程和速度，自动寻迹和寻光功能。整个系统的电路结构简单，可靠性能高。 采用的技术主要有： 通过编程来控制小车的速度； 传感器的有效应用； 新型显示芯片的采用.-80C51 single-chip microcomputer used for the control of the core, the use of ultrasonic sensors detect obstacles on the road, control of electric cars automatic obstacle avoidance, fast low traffic speeds, as well as the automatic parking, and can automatically record time, mileage and speed, automatic track finding and searching optical function. Circuit the whole system of simple structure, high reliability. The technologies used are: programmed to control the speed of car the effective application of the sensor new display chip used.

C8051F330部分模块程序,已经调试成功-C8051F330 part of module procedures are debugging success