SD卡和FAT16读写源代码 支持长文件名和子目录

改c程序基于stm32，开发环境是keil4.7，利用stm32的高级定时器TM1产生4路两两互补的SPWM波，分别去驱动H桥的四个桥臂，死区可通过程序自行设定，改程序利用查表法，一个正弦周期采样256个点，输出8位精度的spwm波。自带稳压程序，离散pid。输出波形较好。

it is usb based power switch controlled via usb based on avr microcontroller

xilinx virtex architecture

c嵌入式编程经验，很有价值，有需要的可以参考-good source for embedded program

详细说明：F2812使用EVA的QEP模块捕捉正交编码器的正交脉冲，记录编码器的当前位置与时间信号（可判断正反转）-F2812 using the EVA QEP module captures the quadrature encoder quadrature pulse encoder records the current position and time signals (can be judged Reversible)

SAM9261 BasicMMU Example code with ADS1.2 (163 kB) The goal of this project is to show how to use a PC100 SDRAM and the MMU to perform a rating with a 100MHz Bus Clock. The rating is based on Dhrystone 2.1. It shows the rate when I+D Caches are disabled or enabled, with or without MMU and I Cache is disable or enabled, with or without MMU. -SAM9261 BasicMMU Example code with ADS1.2 (163 kB) The goal of this project is to show how to use a PC100 SDRAM and the MMU to perform a rating w praxiology a 100MHz Bus Clock. The rating is based on Dhr ystone 2.1. It shows the rate when I Caches are d D. isabled or enabled, with or without MMU and I Cache is disable or enab led, with or without MMU.

这是一种自适应FIR陷波滤波器，用于消除50/60Hz的线路噪声，并针对嵌入式系统进行了优化。它是C和ASM的混合物

Flexray 源代码，提供Flexray通信。用于 MC9S12XF512 。代码提供了低速通讯的过程

红外遥控器已被广泛使用在各种类型的家电产品上，它的出现给使用家器提供了很多的便利。红外遥控系统一般由红外发射装置和红外接受设备两大部分组成。红外发射装置又可由键盘电路、红外编码芯片、电源和红外发射电路组成。红外接收设备可由红外接收电路、红外解码芯片、电源和应用电路组成。通常为了使信号能更好的被传输发送端将基带二进制信号调制为脉冲串信号，通过红外发射管发射。本设计采用Atmega8作为红外发射编码和接收解码芯片。-Infrared remote control has been widely used in various types of household electrical appliances, it" s there to provide the users a lot of convenience. Infrared remote control system in general by the infrared emission devices and infrared devices to accept the composition of two major parts. Infrared emission circuit device can be by keyboard, infrared encoder chip, power and infrared emission circuit. By the infrared receiver infrared receiver circuit equipment, infrared decoder chip, power supply and application circuit. Usually better in order to signal the sending end of the transmission to binary base-band signal for pulse modulation, through the launch tube infrared emission. The design uses infrared emission Atmega8 as encoding and decoding chip receiver.

freescale的关于Imax21的digi程序,好用-Freescale Imax21 the digi on procedures, use