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D12与电脑通过USB单片机通信的程序，开发人员可以参考

8bit adc This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2, or (at your option) any later version.-8bit adc This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2, or (at your option) any later version.

P89LPC900系列单片机 P89LPC922单片机的ISP下载功能的相关方法-P89LPC900 MCU P89LPC922 MCU ISP download the relevant methods

315遥控，控制4路继电器开关,系统最多可控制16路继电器-315 remote control, control 4-way relay switch, the system can control up to 16 relays

红外的发射和接收 单片机红外发射（原理与设计程序）-SCM infrared emission (theory and design program)

智能吊车，广西壮族自治区电子设计踢 得一等奖-Intelligent cranes, Guangxi Zhuang Autonomous Region, first played in electronic design

pid控制例程,演示一钟摆运行情况,可方便移植到其它应用-pid control routines, a demonstration run of the pendulum may be convenient to other applications transplant

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

C8051系列单片机开发与C语言编程!讲解非常详细!-C8051 Series MCU Development and C language programming! Explain in great detail!

此源码利用单片机实现以太网接口，实现方法简单，实用。-use of this source MCU Ethernet interface method is simple and practical.