以比较匹配A达到时交替输出高低电平及写入其维持 时间常数之方法实现脉宽调制输出...

C8051f020从ISD4004分段地址0000H 开始放音，再连续放音120秒后停止放音-C8051F020 from sub-ISD4004 Address 0000H to start playback, then playback for 120 seconds after the playback

ARM里实现 PWM ARM经典 C语言写的-ARM achieve PWM

LPC900单片机与SPI互为主从模式详解，及其C语言程序。-LPC900 SCM and SPI mainly from mutual understandings mode, and C language programming.

PIC16F73 操作iButton信息按钮的源程序，对应于电子门锁的完整应用，如需要原理图请发邮件到：bian_cf@sohu.com-PIC16F73 button operation iButton information source, corresponding to the electronic locks the complete application, if necessary schematics please send mail to : bian_cf@sohu.com

基于51单片机的电压调节系统，可以实时显示电压值。用keil开发环境，protuse仿真。-Based on 51 single-chip voltage regulation system that can display real-time voltage value. Keil development environment with, protuse simulation.

msp430 test code and examples for using a 5438

remote.c 学习型遥控器 使用keil c51 2008.10.12 使用AT89C52单片机，12MHZ晶振，-remote.c learning remote control using keil c51 2008.10.12 using AT89C52 single-chip, 12MHZ crystal,

单片机上支持SD卡。SPI方式通讯，速度几十K-Single-chip support for SD cards. SPI communication, the speed of dozens of K

利用51单片机控制ISD2560语音芯片实现语音的录放和存储，可自动调用，很实用的程序，绝对原创！-51 SCM control the use of voice chip ISD2560 voice playback and storage, can automatically call a very useful procedure, an absolute original!

Michael J. Pont 的嵌入式系统编程讲座2， 8051CPU，keil开发环境。英文的，通俗易懂。-Michael J. Pont Embedded Systems Programming Lecture 2,8051 CPU, keil development environment. English, user-friendly.