【正文】 據(jù)國際檢索單位一個(gè)閉環(huán)控制系統(tǒng)的算例，表明了該控制系統(tǒng)基本的一個(gè)閉環(huán)控制系的圖框。與一個(gè)或更多反饋，就像是剛才所說的是被稱為閉環(huán)系統(tǒng)。通常情況下，自動控制功能是通過feed來完成的。有些應(yīng)用程序從240C具有先進(jìn)的處理能力的好處：工業(yè)馬達(dá)驅(qū)動器電源逆變器和控制器汽車系統(tǒng)，如電子動力轉(zhuǎn)向，防抱死制動系統(tǒng)和氣候控制家電和空調(diào)風(fēng)機(jī)/壓縮機(jī)電機(jī)控制打印機(jī)，復(fù)印機(jī)和其他辦公用品磁帶機(jī)，磁光盤驅(qū)動器和其他大容量存儲產(chǎn)品機(jī)器人和數(shù)控銑床要作為一個(gè)系統(tǒng)管理員，必須有強(qiáng)大的DSP芯片上的I / O和其他外圍設(shè)備。它決定一個(gè)單芯片的數(shù)字電機(jī)控制器的標(biāo)準(zhǔn)。指令集還允許您保留您的軟件投資在其他普通C2x上，源代碼C2x代兼容，源代碼與德州儀器的數(shù)字信號處理器C5x代兼容。以下特點(diǎn)使TMS320系列正確選擇應(yīng)用廣泛的加工范圍：非常靈活的指令集固有業(yè)務(wù)靈活性高速性能創(chuàng)新的并行結(jié)構(gòu)成本效益一代的TMS320系列器件具有相同的CPU結(jié)構(gòu)，但不同的片上存儲器和外設(shè)配置不同。最好的辦法可能是成立一個(gè)約束和心愿，并試圖針對它的最大制造商的處理器來進(jìn)行比較。和39。同樣的程序可能會被裝上10種不同的微型電腦，它們之間沒有溝通。但是，它受所有技術(shù)，在主機(jī)上卻有相同的限制。這導(dǎo)致了一個(gè)特殊磁帶的發(fā)展。原來的數(shù)控系統(tǒng)廣泛使用穿孔紙，后來由磁性塑料帶代替。像許多先進(jìn)技術(shù)一樣，數(shù)控出生于美國麻省理工學(xué)院的實(shí)驗(yàn)室。數(shù)控的開發(fā)推動了制造業(yè)的技術(shù)創(chuàng)新發(fā)展：1。數(shù)控來臨之前，所有機(jī)床是手工操作和控制。 Different DCA’s provide different performance and quality , as measured by THD (Total harmonic distortion ), number of bits, linearity , speed, filter characteristics and other things.The TMS320 family DQP of Texas InstrumentsThe TLS320family consists of fixedpoint, floatingpoint, multiprocessor digital signal processors (D[Ps) , and foxedpoint DSP controllers. TMS320 DSP have an architecture designed specifically for realtime signal processing . The’ F/C240 is a number of the’C2000DSP platform , and is optimized for control applications. The’C24x series of DSP controllers bines this realtime processing capability with controller peripherals to create an ideal solution for control system applications. The following characteristics make the TMS320 family the right choice for a wide range of processing applications: Very flexible instruction set Inherent operational flexibility Highspeed performanceInnovative parallel architectureCost effectivenessDevices within a generation of the TMS320 family have the same CPU structure but different onchip memory and peripheral configurations. Spinoff devices use new binations of Onchip memory and peripherals to satisfy a wide range of needs in the worldwide electronics market. By integrating memory and peripherals onto a single chip , TMS320 devices reduce system costs and save circuit board space.The 16bit ,fixedpoint DSP core of the ‘C24x devices provides analog designers a digital solution that does not sacrifice the precision and performance of their system performance can be enhanced through the use of advanced control algorithms for techniques such as adaptive control , Kalman filtering , and state control. The ‘C24x DSP controller offer reliability and programmability . Analog control systems, on the other hand ,are hardwired solutions and can experience performance degradation due to aging , ponent tolerance, and drift.The highspeed central processing unit (CPU) allows the digital designer to process algorithms in real time rather than approximate results with lookup tables. The instruction set of these DSP controllers, which incorporates both signal processing instructions and generalpurpose control functions, coupled with the extensive development time and provides the same ease of use as traditional 8and 16bit microcontrollers. The instruction set also allows you to retain your software investment when moving from other generalpurpose‘C2xx generation ,source code patible with the’C2x generation , and upwardly source code patible with the ‘C5x generation of DSPs from Texas Instruments.The ‘C24x architecture is also wellsuited for processing control signals. It uses a 16bit word length along with 32bit registers for storing intermediate results, and has two hardware shifters available to scale numbers independently of the CPU . This bination minimizes quantization and truncation errors, and increases p2ocessing power for additional functions. Such functions might include a notch filter that could cancel mechanical resonances in a system or an estimation technique that could eliminate state sensors in a system.The ‘C24xDSP controllers take advantage of an set of peripheral functions that allow Texas Instruments to quickly configure various series members for different price/ performance points or for application optimization.This library of both digital and mixedsignal peripherals includes:TimersSerial munications ports (SCI,SPI)Analogtodigital converters(ADC)Event managerSystem protection, such as lowvoltage and watchdog timerThe DSP controller peripheral library is continually growing and changing to suit the of tomorrow’s embedded control marketplace.The TMS320F/C240 is the first standard device intr