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Real-Time-Clock

VCL component dsplab , STFT and SPECTRUM viewer, real time

VCL component dsplab , STFT and SPECTRUM viewer, real time

標(biāo)簽： component SPECTRUM dsplab viewer

上傳時(shí)間： 2017-09-17

上傳用戶：zhoujunzhen
real time fft, Delphi compiled Component, fftw3.dll libraries

real time fft, Delphi compiled Component, fftw3.dll libraries

標(biāo)簽： Component libraries compiled Delphi

上傳時(shí)間： 2017-09-17

上傳用戶：xzt
Real Time Operating System for Hi-Tech C compiler.

Real Time Operating System for Hi-Tech C compiler.

標(biāo)簽： Operating compiler Hi-Tech System

上傳時(shí)間： 2014-01-12

上傳用戶：大三三
RTX-51 Real-Time翻譯.pdf

RTX-51 Real-Time翻譯, RTX-51 Real-Time翻譯 RTX-51 Real-Time翻譯, RTX-51 Real-Time翻譯 RTX-51 Real-Time翻譯, RTX-51 Real-Time翻譯 RTX-51 Real-Time翻譯, RTX-51 Real-Time翻譯 RTX-51 Real-Time翻譯, RTX-51 Real-Time翻譯 RTX-51 Real-Time翻譯, RTX-51 Real-Time翻譯

標(biāo)簽： RTX-51

上傳時(shí)間： 2015-06-16

上傳用戶：fatemeh
基于ARM的智能PID控制系統(tǒng)

比例-積分-微分（PID）是過程控制中最常用的一種控制算法。算法簡(jiǎn)單而且容易理解，應(yīng)用十分廣泛。但由于應(yīng)用領(lǐng)域的不同，功能上差別很大，系統(tǒng)的控制要求及關(guān)心的控制對(duì)象也不相同。數(shù)字PID控制比連續(xù)PID控制更為優(yōu)越，因?yàn)橛?jì)算機(jī)程序的靈活性，很容易克服連續(xù)PID控制中存在的問題，經(jīng)修正而得到更完善的數(shù)字PID算法。本文以三相全控整流橋阻性負(fù)載為實(shí)際電路，控制主電路電壓，旨在提出一種智能數(shù)字PID控制系統(tǒng)的設(shè)計(jì)思路，并給出了詳細(xì)的硬件設(shè)計(jì)及初步軟件設(shè)計(jì)思路。 PID控制系統(tǒng)采用高性能、低功耗的ARM微處理器S3C44BO作為核心處理單元，內(nèi)部的10位ADC作為信號(hào)采集模塊，采用了矩陣鍵盤和640*480的液晶作為人機(jī)接口；串口作為通信模塊實(shí)現(xiàn)了上位機(jī)的監(jiān)控。采用芯片內(nèi)部自帶的PWM模塊，輸出16M Hz PWM信號(hào)并經(jīng)過一階低通濾波器得到0～5V的控制信號(hào)用于觸發(fā)主電路控制器，實(shí)現(xiàn)PID整定。軟件方面，分析和研究了uC/OSⅡ的內(nèi)核源碼，實(shí)現(xiàn)了其在32位微處理器上的移植，作為管理各個(gè)子程序執(zhí)行的系統(tǒng)軟件。選用了圖形處理軟件uC/GUI用于完成LCD顯示及控制。PID算法采用了增量式數(shù)字PID算法，采用規(guī)一化算法進(jìn)行參數(shù)選取。上位機(jī)部分采用了C＃語言進(jìn)行編寫。另外，采用了RTC（Real Time Clock）作為系統(tǒng)時(shí)鐘，可以實(shí)現(xiàn)系統(tǒng)的定時(shí)運(yùn)行、定時(shí)模式切換等。在上位機(jī)上也可以方便的控制程序的執(zhí)行，實(shí)現(xiàn)遠(yuǎn)程監(jiān)控。在論文的最后詳細(xì)的介紹了智能PID控制系統(tǒng)在三相全控橋主電路中的具體應(yīng)用。總結(jié)了調(diào)試中遇到的問題，對(duì)今后工作中需要進(jìn)一步改善和探索的地方進(jìn)行了展望。

標(biāo)簽： ARM PID 控制系統(tǒng)

上傳時(shí)間： 2013-08-01

上傳用戶：lvzhr
C8051F020

HIGH SPEED 8051 μC CORE - Pipe-lined Instruction Architecture; Executes 70% of Instructions in 1 or 2 System Clocks - Up to 25MIPS Throughput with 25MHz System Clock - 22 Vectored Interrupt Sources MEMORY - 4352 Bytes Internal Data RAM (256 + 4k) - 64k Bytes In-System Programmable FLASH Program Memory - External Parallel Data Memory Interface – up to 5Mbytes/sec DIGITAL PERIPHERALS - 64 Port I/O; All are 5V tolerant - Hardware SMBusTM (I2CTM Compatible), SPITM, and Two UART Serial Ports Available Concurrently - Programmable 16-bit Counter/Timer Array with 5 Capture/Compare Modules - 5 General Purpose 16-bit Counter/Timers - Dedicated Watch-Dog Timer; Bi-directional Reset CLOCK SOURCES - Internal Programmable Oscillator: 2-to-16MHz - External Oscillator: Crystal, RC, C, or Clock - Real-Time Clock Mode using Timer 3 or PCA SUPPLY VOLTAGE ........................ 2.7V to 3.6V - Typical Operating Current: 10mA @ 25MHz - Multiple Power Saving Sleep and Shutdown Modes 100-Pin TQFP (64-Pin Version Available) Temperature Range: –40°C to +85°C

標(biāo)簽： C8051F020

上傳時(shí)間： 2013-10-12

上傳用戶：lalalal
AVR常用庫函數(shù)介紹

目錄： 1. Character Type Functions －字符類型函數(shù) 2. Standard C Input/Output Functions －標(biāo)準(zhǔn)輸入輸出函數(shù) 3. Standard Library Functions －標(biāo)準(zhǔn)庫和內(nèi)存分配函數(shù) 4. Mathematical Functions －數(shù)學(xué)函數(shù) 5. String Functions －字符串函數(shù) 6. BCD Conversion Functions － BCD 轉(zhuǎn)換函數(shù) 7. Memory Access Functions －存儲(chǔ)器訪問函數(shù) 8. Delay Functions －延時(shí)函數(shù) 9. LCD Functions － LCD函數(shù) 10. LCD Functions for displays with 4x40 characters － 4×40 字符型LCD函數(shù) 11. LCD Functions for displays connected in 8 bit memory mapped mode －以8 位外部存儲(chǔ) 器模式接口的LCD顯示函數(shù) 12. I2C Bus Functions － I2C 總線函數(shù) 13. National Semiconductor LM75 Temperature Sensor Functions － LM75 溫度傳感器函數(shù) 14. Dallas Semiconductor DS1621 Thermometer/Thermostat Functions － DS1621 溫度計(jì)函數(shù) 15. Philips PCF8563 Real Time Clock Functions － PCF8563 實(shí)時(shí)時(shí)鐘函數(shù) 16. Philips PCF8583 Real Time Clock Functions － PCF8583 實(shí)時(shí)時(shí)鐘函數(shù) 17. Dallas Semiconductor DS1302 Real Time Clock Functions － DS1302 實(shí)時(shí)時(shí)鐘函數(shù) 18. Dallas Semiconductor DS1307 Real Time Clock Functions － DS1307 實(shí)時(shí)時(shí)鐘函數(shù) 19. 1 Wire Protocol Functions －單線通訊協(xié)議函數(shù) 20. Dallas Semiconductor DS1820/DS1822 Temperature Sensors Functions － DS1820/1822 溫度傳感器函數(shù) 21. SPI Functions － SPI 函數(shù) 22. Power Management Functions －電源管理函數(shù) 23. Gray Code Conversion Functions －格雷碼轉(zhuǎn)換函數(shù)

標(biāo)簽： AVR 庫函數(shù)

上傳時(shí)間： 2013-10-22

上傳用戶：歸海惜雪
串行時(shí)鐘PCF8583在微機(jī)保護(hù)裝置中的應(yīng)用

實(shí)時(shí)時(shí)鐘是微機(jī)保護(hù)裝置的重要部件，在討論P(yáng)CF8583結(jié)構(gòu)與功能的基礎(chǔ)上，提出采用dsPIC33F系列微處理器與串行I2C時(shí)鐘PCF8583的接口設(shè)計(jì)方案，給出了相應(yīng)的接口電路與軟件流程。該設(shè)計(jì)方案結(jié)構(gòu)簡(jiǎn)單，可靠性高，開發(fā)周期短，具有一定的實(shí)用與參考價(jià)值。所設(shè)計(jì)的微機(jī)保護(hù)裝置已投入現(xiàn)場(chǎng)運(yùn)行，效果良好。 Abstract: Real-time clock chip is an important part in microcomputer protection device.Based on discussing the structure and function of PCF8583，a new interface scheme which uses dsPIC33F microprocessor and serial clock chip（I2C）PCF8583is proposed.The method of the circuit design and the main software flow are introduced in this paper.The scheme has simple structure，higher reliability and shorter exploitation cycle，so has definite practicality or reference value.The microcomputer protection device has been put into operation with better effects.

標(biāo)簽： 8583 PCF 串行時(shí)鐘中的應(yīng)用

上傳時(shí)間： 2013-11-18

上傳用戶：Thuan
LPC315x系列ARM微控制器用戶手冊(cè)

The NXP LPC315x combine an 180 MHz ARM926EJ-S CPU core, High-speed USB 2.0OTG, 192 KB SRAM, NAND flash controller, flexible external bus interface, an integratedaudio codec, Li-ion charger, Real-Time Clock (RTC), and a myriad of serial and parallelinterfaces in a single chip targeted at consumer, industrial, medical, and communicationmarkets. To optimize system power consumption, the LPC315x have multiple powerdomains and a very flexible Clock Generation Unit (CGU) that provides dynamic clockgating and scaling.The LPC315x is implemented as multi-chip module with two side-by-side dies, one fordigital fuctions and one for analog functions, which include a Power Supply Unit (PSU),audio codec, RTC, and Li-ion battery charger.

標(biāo)簽： 315x LPC 315 ARM

上傳時(shí)間： 2014-01-17

上傳用戶：Altman
智能照明控制器測(cè)量環(huán)境光線

Abstract: This application note explains how to design an intelligent lighting controller that senses and measures the ambient lightlevel with an ambient light sensor (ALS). Equipped with a real-time clock (RTC), the controller also knows when to turn lighting on oroff at specified times. The system presented in this document can be used to control all luminaires that are mains-supply operated.Controller software is also provided in hex format.

標(biāo)簽： 智能照明控制器測(cè)量環(huán)境光線

上傳時(shí)間： 2013-11-18

上傳用戶：AbuGe