蜂鸣器响 改变蜂鸣器的频率，通过改变延时时间 蜂鸣器的时间要是是靠延时来完成的...

C8051F单片机是完全集成的混合信号系统级芯片（SoC），具有与8051兼容的高速CIP-51内核，与MCS-51指令集完全兼容，片内集成了数据采集和控制系统中常用的模拟、数字外设及其他功能部件；内置FLASH程序存储器、内部RAM，大部分器件内部还有位于外部数据存储器空间的RAM，即XRAM。C8051F单片机具有片内调试电路，通过4脚的JTAG接口可以进行非侵入式、全速的在系统调试。-C8051F is a fully integrated mixed-signal system-on-chip (SoC), and 8051 compatible with the high-speed CIP-51 core, and MCS-51 compatible instruction set, on-chip integration of the data acquisition and control system used in analog and digital peripherals, and other functional components; embedded Flash program memory, internal RAM, the majority of devices located within the external data memory space of RAM, XRAM. C8051F with on-chip debug circuit, through the four legs of the JTAG interface can be non-invasive, full-speed debugging of the system.

读标准韦根26码的程序，效果不错，只是需要后上电-Reading standard Wiegand 26 yards of the procedure, good results, but needs power

单片机外部中断检测程序！！！ 开发环境：keilC 用于检测外部中断-SCM external interrupt testing procedures. ! ! Development environment : keilC for detecting external interrupt

这是一个AD转换程序,可实现多路AD转换,其运行是基于凌阳的spc061A单片机-This is an AD converter, which enables multi-channel AD converter. its operation is based on SCM Sunplus the spc061A

IAR例子，里面是一个完整的定时例子。包含Proteus电路图。-IAR example, which is a complete example of the timing. Include Proteus schematic.

用C8051F060开发的光功率计 由C51编写的程序-Optical Power Meter with C8051F060 development program prepared by the C51

1602的串行输入不用 那么多的引脚就可可以实现1602的读写 显示变量等功能-1602" s serial input pin can not so much can be achieved in 1602 show variable features such as reading and writing

红外解码程序，该程序可为用户提供正确的解码方案，但前提是理解好每个红外的发送过程-IR decoding process, which can provide users with the correct decoding, but the premise is a good understanding of the sending process for each infrared

这是我在我们公司做的C51加油单片机程序-in our company do C51 microcontroller refueling procedures

快速付里叶变换子程序所需 RAM 空间以输入的首地址为基址,向增加的方向扩展-Fast Fourier Transform subroutine RAM space required to input the first address of the site was to increase the direction of expansion