在nrf9e5芯片基础上编写的C51源代码，可实现点到点无线通信的发送部分。...

使用89S52设计的电子钟，C51 编写，本例没有使用1302等时钟芯片，但本例完全具有时钟芯片的功能。比如基本的年月日，时分秒和星期功能，而且还有平闰年的天数自动补偿。由于采用的是全软件算法，时钟误差较大，采用高质量晶振可以减少误差。本例重在培养与训练初学者对C51的学习。-89S52 designed using an electronic clock, C51 preparation, in this case did not use 1302 clock chip, etc., but in this case complete with a clock chip functions. For example the basic date, time, and every second week of features, but also the number of days flat leap automatic compensation. As a result of the full software algorithms, the clock error of greater use of high-quality crystal can reduce the error. In this case focuses on training and training for beginners to learn on the C51.

应用背景 VB写的控制程序，通过PC端上位机控制，在电路板上实现相应的演示效果。  VB write control procedures, through the PC side of the upper computer control, on the circuit board to achieve the corresponding demonstration effect. 关键技术首先 烧写程序到单片机   晶振 11.0592MHZ连接好串口线打开上位机软件 选择好COM端口  设置波特率为9600 First of all burn to write programs to chip crystal 11.0592Mhz serial line connection open PC software select the COM port to set the baud rate of 9600

使用单片机发送彩信的代码，借花献佛。错误之处望指正-MMS

这是S3C2443的BOOTLOADER-This is the S3C2443 BootLoader

对于上位机而言： 1、建立项目；  2、在项目中插入MSComm控件   3、利用ClassWizard定义CMSComm类控制变量  4、在对话框中添加控件     5、添加串口事件消息处理函数OnComm()  6、打开和设置串口参数  7、发送数据   8、发送十六进制字符   9、在接收框中以十六进制显示  对于下位机来说：只需要将串口通信程序下载到下位机即可，不过在连接串口猎人时一定要匹配端口号和波特率。 

在keil c 51编译器环境下 4x6键盘扫描程序

Dos下中断驱动的串口类(CPP)-Dos Interrupt-driven serial port type (CPP)

This research project evaluates startup times of the linux boot process from power-on until user login. Time consuming parts of the boot process are investigated and methods how to speed up the whole process are discussed.

一些关于Nios II学习的好资料，很适合初学者-Nios II study on good information, it is suitable for beginners

lpc2294 Bootloader Linux嵌入开发-err