这个程序可以使用fpga上的晶振，用于测试晶振得使用

单片机波特率程序--Wave bit frequency program in SCM.

AVR单片机解码普通PC键盘码值，解码后通过串口发送到电脑上显示-tiao shi tong guo

单片机控制和处理外部红外遥控信号，实现单片机的遥控功能，适用于一般家庭使用和电子竞赛-SCM control and processing of external infrared remote control signal, the remote control MCU functions applicable to general family use and electronic competition

本方法的基本思想就是利用单片机具有的PWM端口，在不改变PWM方波周期的前提下，通过软件的方法调整单片机的PWM控制寄存器来调整PWM的占空比，从而控制充电电流-The basic idea of this method is the use of microcontroller has the PWM ports, without changing the PWM square wave cycle, under the premise of the method to adjust by software MCU PWM control registers to adjust the PWM duty cycle and thus control the charge current

C51源程序，实现IAP功能，可实现嵌入式系统的自主学习功能

AVR_ISP: AVR单片机的在线编程原理图及印制板图-AVR_ISP : AVR online programming schematics and PCB plans

BBS水木清华站∶嵌入式精华区，包括对嵌入式问题的疑难解答，信息资源，器件资料，网络资料等。-BBS SMTH : Embedded essence of the district, including the right embedded Troubleshooting, information resources, Device information, network information.

这是一个AVR单片机的串行通讯模块 大家可以合理的用到自己的实验中 -This is an AVR MCU serial communication module used in the U.S. could reasonably own experiments

modbus 通讯程序 物理层rs-485-Modbus communication procedures rs-485 physical layer

利用c8051f020单片机进行串口通讯的软件程序，此型单片机将会成为8位机主流-by Using C8051f020 MCU for serial communication software program, this type of SCM will become mainstream eight-