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技术资料 spi协议英文详解
In this presentation, we will look at what the Serial Peripheral Interface, otherwise known as the SPI, is. and how it is used to communicate data to and from the PICmicro microcontroller.SPl is frequently used when few 1/O lines are available, but communication between two or more devices must be f ...
技术资料 cyclone IV FPGA系列datasheet
因为官网是外网，可能会被墙，所以留一份备用，顺便大家可以一起学习。This chapter describes the electrical and switching characteristics for Cyclone IV
devices. Electrical characteristics include operating conditions and power
consumption. Switching characteristics include transceiver specifications, ...
技术资料 Stm32编译函数库
The STM32F10x Standard Peripherals Library is a complete package, consisting of device drivers for all of the standard device peripherals, for STM32 Value line(Medium and Low), Connectivity line, XL-, High-, Medium- and Low- Density Devices 32-bit Flash microcontrollers.
This library is a firmware p ...
模拟电子 音频数模转换器DAC抖动的灵敏度分析
Abstract: This application note describes how sampling clock jitter (time interval error or "TIE jitter") affectsthe performance of delta-sigma digital-to-analog converters (DACs). New insights explain the importanceof separately specifying low-frequency (< 2x passband frequency) and high-frequenc ...
电源技术 电源工程师-电路设计中的英雄
Abstract: We don&#39;t expect manufacturers to produce clothes that in one size that fits everyone. In thesame way, one ESD component can&#39;t solve all issues&mdash;each application has different ESD requirements.Knowing that "one size fits all" cannot apply to power design, the power designer, ...
单片机编程 基于ATmega48的3相无刷电机的控制方法
介绍了采用ATmega48单片机实现三相无刷直流电机控制器的方法。利用Atmega48获得带死区的脉宽调制（PWM）、霍尔传感器的换相处理、正弦驱动信号的产生和电机转速的控制等功能。采用该方法的优点是所需的外围器件少，成本低。
Abstract:
&nbsp;The method of 3-phase brushless DC motor control based on ATmega48 is pre ...
微处理器开发 RS232.C was written to provide all of the basic functionality needed to employ serial I/O in any a
RS232.C was written to provide all of the basic functionality needed
to employ serial I/O in any application written with Borland C
language compilers. Some features are:
1. Ease of use. No assembly language or library files are used and a simple "#include" statement is all that is required to ...
Symbian This Symbian C++ code example demonstrates how to easily use the onboard camera with zoom and autofo
This Symbian C++ code example demonstrates how to easily use the onboard camera with zoom and autofocus, utilising an accompanying CameraWrapper made by Forum Nokia. The Camera Wrapper supports all Nokia s S60 devices based on S60 3rd Edition and newer, providing a unified interface for various Symb ...
技术资料 PW5200系列_2.0.pdf规格书下载
The PW5200A/ PW5200C is high efficiency synchronous, PWM step-up DC/DC converters optimizedto provide a high efficient solution to medium power systems. The devices work with a 1.4MHz fixedfrequency switching. These features minimize overall solution footprint by allowing the use of tiny,low profile ...
技术资料 单片机实现ADPCM编码和解码
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 devic ...