8051 移动信息为 led 点阵的显示

每次开机都将次数加1 并存储到EEPROM。这样就能直观的看到机器的使用次数。用P1口 LED做为显示，次数大于256是将溢出，按复位模拟开机 或者直接通过开关开机。-Each boot will add a number of times and stored in EEPROM. This will be able to see the intuitive usage of the machine. As with the P1 port LED display, frequency is greater than 256 is the overflow, according to reset the boot, or directly through the analog switch boot.

键盘信号接收的例子--An example for receiving signals from keyboard.

在QuartusII中使用AHDL语言编写一个RS232串行数据通信接口，要求设计输入输出端口，要求能提供的接收端口正确地接收。其中1bit作为start位，8bit作为数据，1bit作为end位。-QuartusII used in the preparation of an AHDL language RS232 serial data communication interface to design input and output ports, require the receiver to provide the correct port to receive. 1bit as one start bit, 8bit as data, 1bit as the end bit.

ARM9.2的第二个程序-The second procedure ARM9.2! ! ! ! ! ! ! ! ! ! !

周立功D12开发板中带的WINDOWS XP驱动程序，在编译后会出现USB设备不能正常工作. 以下是修改的代码,修改后可以正常工作. 在d12.c和Ioctl.c中, 将+256去掉,这个会引去枚举设备时,设备描述符的长度不对,修改后: siz = sizeof(USB_CONFIGURATION_DESCRIPTOR) 在d12.c中的D12_SelectInterface函数中, 设备查询完接口后有一段代码,也会引起驱动返回不对,需要屏蔽下面的代码 // Retrieve the selected Configuration and Interface 修改上面两处后,USB可以正常使用了. -weeks D12 development board, who were brought to the Windows XP drivers, the compiler will happen after the USB device not working properly. Following is the revised code, revised after normal work. In d12.c and Ioctl.c, 256 will be removed, this will generate to Enumerate equipment located descriptors up the length wrong, the revised : not = sizeof (USB_CONFIGURATION_DESCRIPTOR) in the D12_SelectInterface d12.c function, equipment End interface for a period after the code can also lead to wrong drivers need to shield the following code// Retrieve the selected Configuration Interface and the above two changes, USB can use the normal.

嵌入式LInux下C编程。详细具体介绍了linux系统编程的方方面面。请多下载-Embedded C programming under LInux. Detailed and specific description of all aspects of linux system programming. Like him to download

2410嵌入式Linux开发指南，关于嵌入式LINUX的开发环境搭建，S3C2410的应用程序开发比较详细的手册！很有帮助！-2410 Guide to Embedded Linux Development on the embedded LINUX development environment to build, S3C2410 application development a more detailed manual! Very helpful!

内核的剪裁,里面详细介绍了linux内核的剪裁-Kernel tailoring, which detailed the linux kernel tailoring

使用STM32F407的DCMI驱动OV7670，设置为320*240显示在LCD上，测试使用dss8920液晶驱动芯片，代码中实现更改窗口大小，白平衡模式，亮度等的设置。

freetype库的应用demo,里面包含freetype的很多实例-freetype library application demo, which contains many examples freetype