针对avr单片机编的精确延时程序，可达1微妙

把单片机串口通讯改造为SPI通讯接口源程序，使用C51语言编写，可以用于MCS8051单片机-put microcontroller serial communications to transform SPI interface source, the use of C51 language, which can be used Mcs8051 MCU

ep2c5q208c8开发板原理图（完整），pdf文件。-ep2c5q208c8 development board schematic diagram (complete), pdf file.

在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct

这是一个基于c8051F060的示波器程序，开发软件为keil。希望给这方面研究的朋友提供一些帮助。-This is a c8051F060 Based on the oscilloscope procedures, to develop software for keil. I hope to study this area with some friends to help.

专用看门狗芯片5045的单片机C语言驱动程序-Dedicated watchdog chip 5045 microcontroller C language driver

AT89C51与字符型液晶模块16x2联接的C语言程序-AT89C51

针对51单片机的中断触发按键的程序，利用P3.2口接行列按键。-For 51 single-chip key interrupt to trigger the process, I then use the ranks of P3.2 button.

ATMEGA128的LED驱动程序，对自己编写端口驱动的同志有很大的帮助！-ATMEGA128 the LED driver, port driver of their comrades in the preparation of great help!

这是一个holtek单片机HT47R20_A读写at24c01的子程页，具有分页读写功能。-This is a HOLTEK SCM HT47R20_A literacy at24c01 the son-page tabs with read and write capabilities.

51写的拼音输入法-51 write phonetic input method