DTMF decoder based on FFT algorithm

应用背景用于STM32的EMWIM界面开发，具体开发人员已经忘记了，大家可以在网上查到相应的程序。这个程序可以直接拷机。关键技术这里针对STM32F103ZET ARM芯片的界面开发。采用了新的UCOSiii来开发，程序为网上下载的，只作为分享。

函数发生器是一种在科研和生产中经常用到的基本波形产生器，集成函数 波形发生器一般都采用ICL8038或5G8038，而它们只能产生300kHz以下的中低频正弦波、矩形波和三角波，且频率与占空比不能单独调节，从而给使用带来很大不便。本文介绍由LM324和稳压管组成的低频函数波形发生器，该电路能够产生正弦波、方波和三角波信号，频率能以10Hz的间隔在20Hz～20KHz范围内调整。-Function Generator is a scientific research and production often use the basic waveform generator, integrated function waveform generator usually used ICL8038 or 5G8038, and they only have a 300kHz following the low-frequency sine wave, square wave and triangular wave, and frequency and duty cycle alone is not regulated, so as to enable using bring a lot of inconvenience. This paper introduces the LM324 voltage regulator tubes, and the low-frequency waveform generator function, the circuit can produce sine, square and triangular wave signal frequencies of 10Hz to 20Hz at intervals within ~ 20KHz adjustment.

MifareOne 卡片读写C代码。应用于酒店，家庭，公寓等场所。采用RC522模块。-Mifare one card type A read and write C codes.

以jupiter芯片为例，含有IO口控制和键盘和定时器中断的驱动-to Jupiter chip for example, contain IO population control and keyboard and timer interrupt driven

资源描述 stm32f4系列芯片驱动摄像头OV9655操作代码 工程文件位于：..:...STM32F4xx_Camera_ExampleProjectOV9655_CameraMDK-ARM

温度检测SDFFSDTGDFHRTUJTYJUTYJTY-TEMPERATUREDFYHGRTDYJFGHTRUJYTY

应用背景嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；嵌入式系统lab0。 ；  lab0嵌入式系统；关键技术和/或操作系统Ⅱ。编码为Altera DE2板做的。 ；C、MC / OS II。编码为Altera DE2板做的。 ；C、MC / OS II。编码为Altera DE2板做的。 ；C、MC / OS II。编码为Altera DE2板做的。 ；C、MC / OS II。编码为Altera DE2板做的。 ；C、MC / OS II。编码为Altera DE2板做的。 ；C、MC / OS II。编码为Altera DE2板做的。 ；C、MC / OS II。编码为Altera DE2板做的。 ；C、MC / OS II。编码为Altera DE2板做的。 ；

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

文章讨论了Linux 作为实时应用操作系统的一些不足，从实现机制上分析了产生这些不足的原因。详细阐述了实时操作系统RTLinux 的实现原理，着重介绍了嵌入式RTLinux 系统的开发过程，并给出了该系统实时性能测试的方法和结果-article discusses the Linux operating system as a real-time application of a number of shortcomings, from the mechanism analysis on the causes of these deficiencies. Detailed real-time operating system RTLinux Principle, highlighting the RTLinux embedded system development process, and the system is real-time performance testing methods and results

立宇泰44B0开发板上时间中断0的实现，armsys－c型开发板，希望大家拍砖！：）-44B0 development board time interrupt 0 realized armsys-c-development board, we hope that the Twins! :)