SD卡的简单介绍，包括SD卡的分类，协议，脚位定义等。

非常有用 毕业设计的朋友需要的请下载 好的话记得回复 直流稳压电源-Very useful design graduate of the Friends, please download necessary so well remember the reply of DC regulated power supply

C语言编写的，控制蜂鸣器唱出一段音乐。 是猪八戒背媳妇。-Written in C language to control the buzzer to sing a piece of music. The Pig is back a wife.

DESCRIPTION =========== This example project shows how to use the IAR Embedded Workbench for ARM to develop code for the Atmel AT91SAM9261 evaluation boards. It shows basic use of parallel I/O, timer and the interrupt controller. It starts by showing different patterns on the LED s separated by half second. COMPATIBILITY ============= The project is compatible with the AT91SAM9261-EK board.

自己写的CH452的驱动，用keil C51写的-himself wrote the CH452 drive with the Keil C51 write

凌阳61板单片机应用，用到两块61板和一块以太网模组，模组和一块61板实现以太网驱动，另一块61板实现音频播放及辨识-Sunplus 61 plate SCM application, used two plates and a 61 Ethernet module 61 modules and a plate Ethernet driver and the other a 61 plate achieve literacy and Audio Player

最小二乘法拟合用在嵌入式系统的代码,单片机上可以测试过-Least square method used in embedded systems code, single-chip can be tested

8051单片机控制Max7221实现动态显示数据-8051 Dynamic control of display data Max7221

实验名称：看门狗实验 功能描述：使能系统看门狗。 如果将PA0连接到LED上观察到实验现象为LED灯闪烁。 如果连接到SPK上将会听到SPK间歇性鸣叫。 如果将watchdog_init() 注释掉或者将WDT_off() 前面的注释去掉则将看门狗禁止 此时连接到LED上观察到的现象为LED常亮 实验目的：熟悉看门狗的操作 实验说明：MCU--M16 外部7.3728M晶振 -AVR for Watchdog!

Scart To Tv 的源代码,作为接口转换是个很好的参考代码-Scart To Tv source code, as Interface Converter is a good reference code

IgorPlugUSB_AVRUB应用与管理，内含IgorPlugUSB相应资料-IgorPlugUSB_AVRUB application and management, including the corresponding information IgorPlugUSB