程序的规划，从开始到结束都有比较详尽的解说，对初学者到比较成熟有帮助...

51单片机驱动LCD的子程序，LCD为定制的液晶，采用HT1621作为LCD驱动芯片-Single-chip LCD driver 51 of the subroutine, LCD for customized liquid crystal, used as the LCD driver IC HT1621

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

ARM LPC2131的LCD1602驱动程序-ARM LPC2131 the LCD1602 driver

93C46读写程序 很不错的程序希望和大家一起交流-93C46 literacy procedure very well and we hope that the procedures together exchanges

５１实现的两个串口通信程序，ＫＥＩＬ环境下开发，可直接使用-51 realize the two serial communication program, KEIL development environment can be directly used

优龙2410板子的BIOS代码，程序清晰明朗，容易移植到类似的开发板上，十分值得推荐。-2410 Liuzhou excellent board of BIOS code, the program clearly uncertain, easily transplanted to a similar development on the board, very much worth recommending.

单片机键盘例子！是学习单片机初级时很好的程序例子！-SCM keyboard example! SCM is the initial learning process when good example!

ZLG7289键盘显示接口芯片是一个很常用的接口芯片，至需4个IO口接可以控制显示8位的数码管显示和64个矩阵键盘的自动扫描，效果很好。-ZLG7289 keyboard display interface chip is a very common interface chip, to take four IO access can be controlled mouth shows 8 digital tube display and keyboard matrix 64 automatically scans, very good.

用C语言读写CF卡程序 非常不错的东西-Used C language literacy CF card procedures very good things

decoder for rc5 in avr microcontrollers