Mathematical modeling has become an important part of the research and devclopment work in engineering and scicnce. Retaining a competitive edge requiresa fast path between ideas and prototypes, and in this regard mathematical modeling and simulation provide a valuable shortcut for understanding both qualitative and quantitative aspects of scientific and engineering design. To assist you in gaining this edge, COMSOL Multiphysics offers state-of-the art performance, being built from the ground up with a Java3D interface and C/C++ solvers.The Acoustics Module is an optional package that extends the COMSOL Multiphysicsmodcling cnvironment with customized user interfaces and functionality optimizcd for the analysis of acoustics. Like all modules in the COMSOL family, it provides a brary of prewritten ready-to-run models that make it quicker and casier to analyze disciplinc-specific problcms.
上传时间： 2022-06-19
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INTRODUCTION In the past, adding speech recording and playback capability to a product meant using a digital signal processor or a specialized audio chip. Now, using a simplified Adaptive Differential Pulse Code Modulation(ADPCM) algorithm, these audio capabilities can be added to any PICmicro device. This application note will cover the ADPCM compression and decompression algorithms, performance comparison of all PICmicro devices, and an application using a PIC16C72 micro-controller.DEFINITION OF TERMS step size -value of the step used for quantization of ana-log signals and inverse quantization of a number of steps.quantization -the digital form of an analog input signal is represented by a finite number of steps.adaptive quantization -the step size of a quantizer is dramatically changed with time in order to adapt to a changing input signal.inverse quantizer -a finite number of steps is converted into a digital representation of an analog signal.
上传时间： 2022-06-20
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這包 BSP 支持了NUC970 系列芯片. 新唐科技的 NUC970 系列芯片是以 ARM926EJS 為核心的系统级單芯片. 包含了 16kB I-Cache 以及 16kB D-Cache 以及MMU 記憶體管理模塊. 最高支援到 300MHz 的頻率, 並且提供了豐富的外設接口周邊. 有USB 快速Host/Device, SDHC, 支援TFT LCD介面, 網路接口 和I2S audio介面, 有11 組UART…等. 並可以由 NAND flash, SPI Flash 開機.
标签： NUC970
上传时间： 2022-06-23
上传用户：slq1234567890
Introduction The Sil9135/Sil9135A HDMI Receiver with Enhanced Audio and Deep Color Outputs is a second-generation dual-input High Definition Multimedia Interface(HDMI)receiver. It is software-compatible with the Sil9133receiver, but adds audio support for DTS-HD and Dolby TrueHD. Digital televisions that can display 10-or 12-bit color depth can now provide the highest quality protected digital audio and video over a single cable. The Sil9135and Sil9135A devices, which are functionally identical, can receive Deep Color video up to 12-bit,1080p @60Hz. Backward compatibility with the DVI 1.0specification allows HDMI systems to connect to existing DVI 1.0 hosts, such as HD set-top boxes and PCs. Silicon Image HDMI receivers use the latest generation Transition Minimized Differential Signaling(TMDS) core technology that runs at 25-225 MHz.The chip comes pre-programmed with High-bandwidth?
上传时间： 2022-06-25
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MotioninterfaceTM is becoming a "must-have"function being adopted by smartphone and tablet manufacturers due to the enormous value it adds to the end user experience. In smartphones, it finds use in applications such as gesture commands for applications and phone control, enhanced gaming, augmented reality, panoramic photo capture and viewing, and pedestrian and vehicle navigation. With its ability to precisely and accurately track user motions, MotionTracking technology can convert handsets and tablets into powerful 3D intelligent devices that can be used in applications ranging from health and fitness monitoring to location-based services. Key requirements for Motionlnterface enabled devices are small package size, low power consumption, high accuracy and repeatability, high shock tolerance, and application specific performance programmability-all at a low consumer price point.
标签： mpu6050
上传时间： 2022-07-06
上传用户：zhaiyawei
Agenda■Motor Types Overview■BLDC Motor Applications■Comparison of DC to Brushless DC Motors■Hall Sensors■Six-Step Commutation■Sensorless Commutation with Back-EMFVector Motor Control basicsClosed-Loop Speed Control■Introduction to BLDC Motor Control Evaluation Kit■SummaryAll the popular motor types have their specific applications, and all can be controlled with microcontrollers.We wll talk about Brushless DC motors as it is the fast growing motor type today.Motors used in modern Air conditioners, home appliances, tools, even electric bikes are all going to Brushless DC.
上传时间： 2022-07-07
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AP3852 是一款拥有 CPU 和 DSP 双核的智能音频/语音处理芯片。芯片内置有 32 位 CPU 和 32 位 DSP 以及 2M FLASH，配合丰富的外围控制接口，非常适合各 种智能音频/语音处理系统。 该芯片配合菁音科技各种专利音频处理算法，能处理从声音输入、噪声消除、 音频预补偿、音效处理到声音回放的一个完整的音频通路；仅需配备简单的外围 器件即可组成高品质的音频输入/回放系统。能极大的提升产品的性能。 芯片内置 32Bits CPU，拥有良好的开发环境；内置 32Bits 音效处理 DSP，支 持浮点数运算、支持 FFT，方便各种进行各种算法编写；此外，为增加运算能力， 芯片还内置有一块专用的 Hardware Engine 单元，特别适合高速 FIR/IIR 运算。 芯片内置24Bits的Audio Codec，具有较高的SNR、THD。内置112KBytesSRAM； 内置 32 位 OTP Key，支持用户程序加密。 具有丰富的外围接口，包括 Full Speed USB Device、10Bits SAR ADC、SPI、I2C、 I2S、UART、GPIO 等。
上传时间： 2022-07-07
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芯片cx21986 规格书，希望能有帮助
上传时间： 2022-07-17
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MT7688 family integrates a 1T1R 802.11n Wi-Fi radio,a 580MHz MIPS? 24KEcTM CPU,1-port fast Ethernet PHY, USB2.0 host, PCIe, SD-XC,I2S/PCM and multiple slow IOs. MT7688 provides two operation modes-IoT gateway mode and IoT device mode. In IoT gateway mode, the PCI Express interface can connect to 802.1lac chipset for 1lac dual-band concurrent gateway. The high performance USB2.0 allows MT7688 to add 3G/LTE modem support or add a H.264 ISP for wireless IP camera. For the IoT device mode, MT7688 supports eMC, SD-XC and USB 2.0. MT7688 can support the Wifi high quality audio via 192Kbps/24bits I2S interface and VolP application through PCM. In IoT device mode, it further supports PWM, SPI slave,3d UARI and more GPIOs. For IoT gateway, it canl connect to touch panel and BLE, Zigbee/Z-Wave and sub-1G RF for smart home control.
上传时间： 2022-07-24
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VIP专区-嵌入式/单片机编程源码精选合集系列（75）资源包含以下内容：1. PCI9820数据采集卡的安装程序－－可实现双缓存模式的。连续数据采集。.2. 此文件是一个源程序代码.3. 不错的入门例子.4. 3310 的好资料.5. lcd的资料.6. 大三时做的.7. m16 的adc.8. 51上做到tcpip.9. 另一个在mpc8272上产生usb sof帧的demo.10. PIC ICD2仿真器的原理图与PCB.11. SD卡和AIC23数字音频输出实验, FreeDev Audio Dsp Board采用了TI公司的TVL320AIC23 1、控制接口使用I2C.12. quartusII 中文使用手册.13. 用中断方式编写的刷瓶显示程序.14. LCD液晶显示模块驱动程序.15. 基于2410开发板的嵌入式测试程序.16. 51系列的最简但功能齐全之spi总线的使用.17. WIGGLER小板原理图和PCB图.18. 杭州立宇泰的JTAG原理图.19. 在三星44b0开发板下可调试.20. jpeg压缩、解压的C源代码.21. 键盘去抖动CPLD设计经过验证,可以直接用数码管显示,同时也希望大家给于新想法.22. 采用Cypress EZ-USB设计原理图.23. 基于VxWorks的PCI设备驱动程序开发.24. Vx Works操作系统下PCI总线驱动设计.25. niosii实例程序供初学者使用.26. niosii c程序 niosii c程序.27. niosii c程序 niosii c程序.28. niosii c程序 niosii c程序.29. niosii c程序 niosii c程序.30. protel99se核心板原理图及相应PCB库2410.31. 最先进的信号机程序,经过很多重要场合测试通过.32. 该系统加入了led屏的硬件控制器.33. 44B0启动原代码.34. 目录文件结构： 用于s3c44b0 lcd_test ├─ main.c C语言主源文件 ├─ bmp.c 光标图案源文件 ├─ bmp.h 光标图案头文件 ├─ lcd.c LC.35. 晶杂管倒通角的控制！希望能给大家提供帮助！.36. 128*64串行输入数据.37. 红外解码,并带1602显示！希望能给大家提供帮助！.38. da0832的用法,希望能给大家提供帮助！.39. 24c08的用法!希望能给大家提供帮助!.40. ds1302时钟芯片的用法,希望能给大家提供帮助!.
标签： 汽车设计
上传时间： 2013-07-11
上传用户：eeworm
