模拟分频器是音箱内的一种电路装置，用以将输入的模拟音频信号分离成高音、中音、低音等不同部分，然后分别送入相应的高、中、低音喇叭单元中重放。
Analog frequency divider is a circuit device in the speaker box, which is used to separate the input analog audio signal into different parts such as treble, medium and bass, and then send them into the corresponding high, medium and woofer units for replay. (2021-04-11, C/C++, 131KB, 下载0次)
51单片机中断，定时器中断，跑马灯，中断时钟等一系列程序，里面包含详细讲解
This is a good procedure. I hope you can adopt it and put forward your opinions. (2021-03-23, C/C++, 116KB, 下载0次)
用户自定义函数，或 UDF，是用户自编的程序，它可以动态的连接到 Fluent 求解器上来提高求解器性能。用户自定义函数用 C 语言编写。使用 DEFINE 宏来定义。UDF 中可使用标准 C 语言的库函数，也可使用 Fluent Inc.提供的预定义宏，通过这些预定义宏，可以获得 Fluent 求解器得到的数据。
User-defined functions (UDFs) allow you to customize ANSYS Fluent and can significantly enhance its capabilities. The ANSYS Fluent UDF Manual presents detailed information on how to write, compile, and use UDFs in ANSYS Fluent. Examples have also been included, where available. General information about C programming basics is included in an appendix. (2020-10-12, C/C++, 7674KB, 下载0次)
目前市面上最常用的加速度传感器芯片，最多应用于智能穿戴设备。
At present, the most commonly used acceleration sensor chip on the market is mostly used in intelligent wearable devices. (2020-09-04, C/C++, 1834KB, 下载3次)
ADV7630、LMT85、SSD1306的datasheet，非常详细，ADV7630是HDMI的转换芯片，LMT85是温度传感器
Adv7630, lmt85, ssd1306 datasheets, very detailed, adv7630 is HDMI conversion chip, lmt85 is temperature sensor (2020-08-25, C/C++, 2384KB, 下载3次)
《疯狂STM32实战讲学录》面向立志于进行STM32处理器开发的初学者以及从单片机向STM32处理器转型的工程师，依照理论与实践相结合的思想，介绍了STM32开发过程中的基础理论，并给出了具体的实例。全书针对STM32处理器裸机开发过程中的重点、难点问题，特别是库函数的使用方法，既有基础知识的讲述，又有相关配套实验，使读者能容易、快速、全面地掌握STM32处理器开发。
"Crazy STM32 actual combat lecture record" is for beginners who are determined to develop STM32 processor and engineers who are transforming from single chip processor to STM32 processor. According to the idea of combining theory with practice, this paper introduces the basic theory in the development process of STM32, and gives a specific example. The book focuses on the key and difficult problems in the development of STM32 processor, especially the use of library functions. It not only describes the basic knowledge, but also has related supporting experiments, so that readers can easily, quickly and comprehensively master the development of STM32 processor. (2020-08-20, C/C++, 48050KB, 下载3次)
UDF中文教程全集 UDF第5章 使用宏存取FLUENT解算器变量
Chapter 5 of UDF USES macros to access FLUENT solver variables (2020-01-02, C/C++, 1659KB, 下载1次)
单片机低功耗设计实例集合，低功耗程序设计
A collection of low power design examples of single chip microcomputer (2019-10-29, C/C++, 13182KB, 下载3次)
深入浅出的讲解了抗饱和PI控制器原理的论文，有助于开发设计。
Anti-Windup PIDcontroller (2019-08-06, C/C++, 1274KB, 下载3次)
新中新一卡通开发文档
库函数使用规则
（1）程序开始，需要调用TA_Init3 ()函数初始化动态库，如果不需要对卡内容进行读写操作，而只是读卡片的序列号，则不需要调用TA_Init3()函数。
（2）程序调用需要读写卡操作的函数时，必须首先调用TA_CRInit()函数对读卡器进行初始化，当程序不再使用读卡器时，需要调用TA_CRClose()关闭读卡器。
（3）当程序调用模糊查询操作时，如果查询成功，查询成功的文件放在RecvTemp目录下，如果是下载控制文件，下载成功的文件放到ControlFile目录下，控制文件的名称是：Control.bin;如果下载相片文件，下载成功的文件放到Photo目录下。
Card Development Document (2019-04-03, C/C++, 241KB, 下载1次)
AD7124芯片手册，AD模拟转换各个寄存器的作用
AD7124 Chip Manual, AD analog conversion of the role of each register (2018-12-11, C/C++, 1633KB, 下载18次)
本书在全面介绍Cortex-A8处理器的体系结构、编程模型、指令系统及开发环境的同时，以基于Cortex-A8的应用处理器——S5PV210为核心，详细介绍了系统的设计及相关接口技术。接口技术涵盖了I/O、中断、串口、存储器、PWM、A/D、DMA、IIC、SPI、Camera、LCD等，并提供了大量的实验例程。
This book introduces the architecture of Cortex-A8 processor, programming model, instruction system and development environment, and introduces the design of the system and related interface technology in detail, with the application processor of Cortex-A8 based on S5PV210 as the core. Interface technology covers I/O, interrupt, serial port, memory, PWM, A/D, DMA, IIC, SPI, Camera, LCD and so on, and provides a large number of experimental routines. (2018-06-01, C/C++, 4871KB, 下载0次)
简单的红外解码程序，通过测量高低电平长度，记录时间
Simple infrared decoding program, by measuring the length of high and low level, recording time. (2018-05-14, C/C++, 1787KB, 下载5次)
C的简易计算器代码，支持括号，优先级等等运算但是不支持散件函数等处等函数
Calculator of C but is not repreciable for the function like sin cos tan (2018-04-28, C/C++, 1KB, 下载1次)
串口发数据,速度为192000K，寄存器操作方法，测试已成功
Serial port send data, speed is 192000K, register operation method, the test has been successful. (2018-04-27, C/C++, 1KB, 下载1次)
PIC单片机 编程必读，熟悉MPLAB开发环境，专门针对PIC 8位单片机
The required reading of PIC single chip computer programming (2018-03-23, C/C++, 665KB, 下载3次)
ADXL362开发例子，主要是寄存器配置，说明的很清楚，可以参考。
ADXL362 development examples, mainly register configuration, the description is very clear, you can refer to. (2017-11-12, C/C++, 584KB, 下载7次)
AD9361参考配置的文档。UG-570
AD9361configuration UG-570 (2017-09-27, C/C++, 652KB, 下载47次)
文中介绍了铁氧体磁珠的特性，并且根据它的特性详细分析和介绍了其在开关电源EMC设计中的重要应用，给出了在电源线滤波器中的实验和测试结果。
Bead Application (2009-10-12, C/C++, 8KB, 下载3次)
这是我做的词法分析器的 需求分析和系统设计 请大家指教！
I developed the requirement analysis and system design of grammar analyzer. Advices are welcome. (2005-08-29, C/C++, 38KB, 下载70次)