本文详细的介绍了高精度定时的实现，并给出了定时器设置的例子。

下面是一个超声波测距的程序，硬件电路由于电脑格盘已丢失，下面的代码是从样机上复制的。 硬件电路包括液晶显示、超声波的发射、超声波的接受、滤波、单片机处理。 液晶显示采用LCD1602模块，下面的代码里有液晶的驱动，可以拷贝用于它处。 超声波发射电路包括压电换能器及其支持电路，发射约44KHz的超声波。 超声波的接收电路包含一块CD40106处理芯片。技术指标大约是测距范围在三米左右，测量精度约在厘米级别。大量用于倒车雷达的测距中。-The following is a range of ultrasound procedures, the hardware circuit as a result of the computer grid plate has been lost, the following code is copied from the prototype. Hardware circuit including liquid crystal display, ultrasonic transmitter, ultrasonic acceptance filtering, single-chip processing. LCD1602 LCD module used, the following code, there are LCD drivers, you can use it to copy. Firing circuit including the piezoelectric ultrasonic transducer and its support circuitry, fired about 44KHz ultrasound. Ultrasonic receiver circuit includes a processing chip CD40106. Technical indicators for a range of about 3 meters range around the measurement precision level of about cm. Reversing a large number for the location of the radar.

ARM COrtex CMSIS interface example

是《linux设备驱动》RD2,的中文版，本书是告诉一个新手，如何开发Linux驱动，本书是根据E文翻译过来的，适合搞嵌入式行业而且英文不太好的朋友，如果英文nice,建议看《linux device drivers 3》，站里有，如果你在本站找不到，也可以发邮件给我，我发给你！ my email: lifei4690277@yahoo.com.cn-Is

单片机复位电路的可靠性设计复位电路的基本功能是 系统上电时提供复位信号直至系统电源稳定后撤销复位信号为可靠起 见电源稳定后还要经一定的延时才撤销复位信号以防电源开关或电源插头分-合过程中引起的抖动而影 响复位-MCU reset circuit reliability design of the circuit" s basic function is to reset the system power-on reset signal until the system is to provide stable power to withdraw the sake of the reset signal as a reliable power supply stable even after a certain delay to revoke a reset signal to prevent the power switch or Power plug points- combined jitter caused in the course affected by reset

ATMEL-Wireless and Microcontrollers 2000 flash api

一个ＰＷＭ输出的好例程,还有一些批注，更值得你的关注-PWM output of a good routine, there are some endorsements, more worthy of your attention

BF 533视频输出源代码-BF 533 video output source code

用51单片机控制cc1100发送接收模块的参考程序.-With 51 single-chip receiver module control cc1100 send a reference procedure.

LCD驱动程序，可以用4个键盘控制，并且可以显示结果-LCD driver, you can use 4 keyboard control, and can display the results

Linux下通过V4L实现视频采集，使用方法： gcc -o XXXX InitVideo.c 我亲自编写，可以运行，现奉献给大家。-Linux through V4L video collection, use : gcc-o XXXX InitVideo.c I personally prepared, can run, it is dedicated to you.