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AMBA总线规范，能对从事嵌入式的同行们有一些帮助，让大家更好的理解ARM 结构和AMBA 体系(AMBA Specification)

linux的多进程处理与调度，处理阻塞与非阻塞(linux multi-process handling and scheduling, handle blocking and non-blocking)

串口输出：LED_KEP test!； 程序运行后8LED会数字滚动，LED跑马，然后按键盘8LED会显示不同的键值； 屏幕上显示相关的文字。(Serial port output: LED_KEP test!; After the program runs, the 8LED will scroll digitally, the LED will run horse, and then the keypad 8LED will display different keys. The relevant text is displayed on the screen.)

这个文档非常经典的介绍了关于嵌入式开发的一些精髓，非常适合初学者(This document is the classic description of some of the essence on embedded development, is very suitable for beginners)

嵌入式linux下mjpg-streamer采集视频源码，采用V4L2架构写的

嵌入式linux 下使用 v4l2采集USB摄像头图像的完整代码,输出文件可播放(Using v4l2 to collect the complete code of USB camera image under embedded linux, the output file can be played.)

210的UBOOT源码，UBOOT-1.3.4(210 UBOOT source, UBOOT-1.3.4)

ESP32最新驱动代码 TI官方支持无缝衔接(ESP32 latest driver codeTI officially supports seamless connection)

说明：  选用ZYNQ SoC作为智能相机系统的硬件处理平台，依据系统设计需求，将系统整体功能结构的开发划分到用户空间、内核空间、底层硬件三个层面。在硬件层，对系统硬件功能进行了模块化设计，分别对基于USB和OV7725的双通道图像采集模块、HDMI显示模块进行开发。(Zynq SOC is selected as the hardware processing platform of the intelligent camera system. According to the system design requirements, the development of the overall functional structure of the system is divided into three levels: user space, kernel space and bottom hardware. In the hardware layer, the hardware functions of the system are modularized, and the dual channel image acquisition module and HDMI display module based on USB and ov7725 are developed respectively.)

linux下视频传输代码，使用套接字编程(Linux under the video transmission code，use socket)