用单片机C语言编的日历芯片PCF8563的实时时间显示C程序源代码，可供单片机开发人员参考。...

我用单片机8952和电压比较器339做了一个简单的电容容量测量表，参数大 致如下： 电容测量范围为1pF-9999.99uF，最小分辨力为1pF。分为5个量程，可以自 动切换量程，也可手动切换。 另外，有简单的频率计功能，能测量0-60MHz的数字信号频率（TTL电平）； 还可以产生几个单点频率的方波信号（比如1KHz）。 采用1602LCD作为显示器；4个按键控制；使用24C01保存当前设置值，不用 每次开机重新设置。可单5V供电，也可9V交流供电 -I used the single-chip 8952 and the voltage comparator 339 to do a simple capacitance measurement table, parameters are as follows: capacitance measurement range 1pF-9999.99uF, the minimum resolution for the 1pF. Divided into five ranges, you can automatically switch range can also be manually switched. In addition, a simple frequency meter function, capable of measuring 0-60MHz frequency digital signal (TTL level) can also lead to several single-point-frequency square-wave signal (for example, 1KHz). 1602LCD used as a monitor 4 button control use 24C01 to preserve the current settings, do not reset each boot. Can be a single 5V power supply, 9V AC power supply can also be

该程序实例可用于基于proteus的单片机仿真开发应用与研究，供大家参考学习。-Instance of the program can be used for emulation of MCU-based development and application of proteus and research for your reference study.

一个用单片机开发的硬盘控制器,可以实现对大容量硬盘数据的读写!-With the development of a single-chip hard disk controller, can realize the large capacity hard disk data read and write!

基于vriloge的数字钟具有调时、分、秒和定时报警功能，开发环境是MAXPUII的开发环境，实际检验是完全符合-Vriloge based on the digital clock has adjusted hours, minutes, seconds and time alarm function, the development environment is MAXPUII development environment, the actual test is fully consistent with the

国人为8位机写的实时操作系统，已经有实际的产品应用。-eight people to write for the real-time operating system, have practical applications.

c8051f040单片机的定时器应用程序。-C8051F040 MCU timer application.

串行通讯_查询方式 有详细的文字说明 可用于单片机 串行通讯时查询连通性用-Serial communication _ query has detailed text description can be used for single-chip serial communications connectivity with inquiries

89c52编写智能化开关电源设计，带A/D,D/A识别全数字开关电源程序。-89c52 prepare intelligent switching power supply design, with A/D, D/A to identify an all-digital switching power supply procedures.

频率计是用单片机89C51和几块数字电路几个三极管-Frequency meter is used and a few 89C51 single-chip digital circuit several triode

电子密码锁源码，VB》NET，加硬件键盘可工作-Electronic Code Lock Source, VB " NET, plus the hardware keyboard to work