一个网卡的应用，基于kb9202开发板，SOC是atmel的at91，实现了ICMP和ARP协议，IP太繁，实现个缩水版的又没有意思...

用51单片机作为MCU，C语言编程，实现的电子锁功能，自己可以设定密码，密码用*号显示，在数码管作为显示单元， 另外用户可以更改密码，在很多小区的单元门上得到应用。

世界时钟的一个显示程序及图形。自己下载看看吧-world clock and a graphic display program. Download let"s see it

觉得对于arm的学习很有用，写得也很好！-feel arm of learning useful, written was good!

at91rm9200 和s1d13806接口-at91rm9200 and s1d13806 Interface

我在使用陈明计先生写的small RTOS和51单片机做过几个小项目，起初都很好，开发变的容易了，程序变的容易修改。后来随着任务个数的增多，RAM很快就不够用了。51系列的芯片内部RAM普遍都是256个,很难找出1024个字节RAM或更多，而价格又合适的。记得上一次我没有办法被迫使用了64K flash内部带768字节的XRAM的51芯片，而我根本用不到那么多flash。-I use Mr. Chen Mingji written small RTOS and 51 MCU done several small projects at first were very good to develop easy to change the program become easier to modify. Subsequently, the increase in the number of tasks, RAM is not fast enough. 51 series of chip RAM are generally 256, it is difficult to find 1024 bytes of RAM or more, while prices will be appropriate. I remember the last time I had no way forced to use a 64K flash with 768 bytes of internal XRAM of 51 chips, and I will never use that much flash.

AVR做的SD卡读卡器源程序,带电路原理图-AVR to do the SD card reader source, with circuit schematic diagram

这是一个AVR的看门狗watchdog的程序，它是用ICCAVR开发-This is an AVR watchdog watchdog

基于arm9 s3c2410 的GPRS源代码-jiyu arm 9 s3c2410 s code

arm vhdl rtl code,can synthesis

静态单数码管显示 有详细的文字说明 可方便使用者修改-Static single digital display has a detailed text description can be user-friendly modifications