一个简单的利用查表法的反正切和正、余弦函数，在处理速度不快的单片机编程中，这是一个使用的方法。...

51单片机控制ISD1420实现选段播放功能的实现-ISD1420 single-chip implementation of 51 selections to control playback of the implementation

中断串口程序-interruption procedures

STC12C5410AD 系列和STC12C2052AD 系列单片机EEPROM/IAP 功能测试程序演示 本演示程序在STC-ISP Ver 3.0A.PCB 的下载编程工具上测试通过,EEPROM 的数据在P1口上显示 本程序根据宏晶科技提供的演示程序改编，是本人学习C51的学习笔记，供有需要的同仁参考 -STC12C5410AD series and STC12C2052AD Series MCU EEPROM/IAP function test procedure in the presentation of the demo program STC-ISP Ver 3.0A.PCB download programming tools on the test, EEPROM data in the P1 I show this program in accordance with the provision of macro crystalline technology demo program adaptation, learning my C51 study notes, for there is a need to refer to the Tongren

KEIL的接口函数，对于打算做仿真器的朋友可能有帮助-KEIL interface function, for the intention to make the simulator might be helpful to Friend

Proteus的使用教程，该教程介绍了如何用proteus进行电路模拟仿真，包含了元件的加载、原理图的制作及在keil中如何联调。该教程综合了网上的比较详细的使用说明，出现的各种版本（包括英文文档）。最后还有一些proteus仿真例子及源码供大家学习用。-Proteus use of tutorials, the tutorial describes how to use proteus for circuit simulation, contains the components of the load, schematic diagram of the production and how the FBI in keil. The synthesis of an online tutorial more detailed instructions, there" s various versions (including English documents). Finally, there are proteus simulation examples and source code available for everyone to learn from.

用AT89C2051实现程序A/D转换程序，用PWM模拟输出。-Procedures using AT89C2051 realize A/D conversion process, using PWM analog outputs.

PHILIPS LPC900 PWM CRTL 时间可调 -PHILIPS LPC900 time adjustable PWM CRTL

freescale MCF5485EVB开发板上中断操作示例，利用一个timer产生中断，另外3个timer作为GPIO，使3g个LED每隔1秒钟轮换亮一次。-freescale MCF5485EVB interrupt the operational example of the development board, using a timer generate an interrupt, another three timer as a GPIO, so 3g a LED light at one-second rotation time.

单片机与电脑一体机数据传送的接收部分.请多多支持-Single-chip machine and computer to receive data transmission part.

免费开源实时RTOS--FreeRTOSV5.0.3源代码-Free open-source real-time RTOS- FreeRTOSV5.0.3 source code