UT58A数字万用表电原理图，格式为图片，请注意

单片机的中断定时操作，详细介绍了c51中定时器设置和中断设置应用情况-SCM interrupted regular operations, detailing the decoder timer settings and installed applications interruption

EEPROM仿真器有原理图，源代码等详细说明，是硬件调试的好帮手

主要是关于A/D转换的程序，每一个我都试验过，非常好使-Mainly on the A/D conversion process, every test I have been very so

Atmel1508的资料，大家看看阿，不错哦，好东东阿。好东东阿。-Atmel1508 information, we look at Ah, yes, oh good Dongdong A. A good Dongdong.

基于凌阳八位单片机的快速编程手册，可以让你较短时间掌握编程的便利。-Sunplus based on eight single-chip Fast programming manual, which will let you have a relatively short time to facilitate programming.

单片机的程序，关于串口通讯的，对初学者来说说不定有用。-SCM procedures, on the serial communication, and may be useful for beginners.

通过51单片机产生不同频率的信号，在喇叭上产生不同频率的声音信号，实现不同音乐播放-Through 51 different single-chip frequency signal generated in the speaker s voice signals at different frequencies, different music player

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.

AT9200的bsp包，可以位嵌入式开发者提供较快的开发速度。-AT9200 the BSP kits, which could be embedded developers for faster development time.

就像在嵌入系统中使用C语言替代汇编一样,在嵌入系统中使用RTOS是大势所趋。原因主要是现在在大多数情况下编程效率比执行效率重要（单片机便宜嘛）。但纵观51的RTOS，keil c51 所带的RTX Full 太大（6k多），且需要外部ram，又无源代码，很多时候不实用。RTX Tiny虽然小（900多字节），但是任务没有优先级和中断管理，也无源代码，也不太实用。而ucosII虽有源代码，但是它太大，又需要外部ram，所有函数又必须是重入函数，用在51这类小片内RAM的单片机上有点勉强。于是，我借鉴ucosII和RTX Tiny编写了Small RTOS 51,虽然它为51系列编写，但是它还是比较容易移植到其它CPU上。 -err