單片機(jī)外文翻譯----基于msp430f149單片機(jī)實(shí)現(xiàn)的步進(jìn)電機(jī)通用控制器-單片機(jī)-預(yù)覽頁(yè)
【正文】 unction movement。Step of electric machine universal controller realizes which based on the MSP430F149 Single Chip Microputer. Abstract： With the infiltration in the social field of the puter in recent years, the application of the onechip puter is moving towards deepening constantly, drive tradition is it measure crescent benefit to upgrade day to control at the same time. In measuring in real time and automatically controlled onechip puter application system, the onechip puter often uses as a key part, only onechip puter respect knowledge is not enough, should also follow the structure of the concrete hardware , and direct against and use the software of target39。 May according to the control signal movement which exterior examines。 Completes the simulation hypothesis function. (3) Formidable timer function。 the hypothesis speed which the CP pulse pletes with has the CP pulse timer starting value to have the certain relations. The MSP430F149 timer work way has many kinds of, this design timer work under continual way. In the continual pattern, the timer starts from its current value to count, after counts to 0FFFFH from \ 0\ Starts redo count. Under this way, pares the timer current value and parison register CCRX, if equal has the severance, and May the time which has the next event add to in this interrupt service is on parison register CCRX. Fixed time the starting value = must fixed time the value/count the cycle。 本文主要介紹了基于 MSP430F149 單片機(jī)實(shí)現(xiàn)的步進(jìn)電機(jī)通用控制器。 鑒于此，設(shè)計(jì)了基于 MSP430F149 單片機(jī)實(shí)現(xiàn)的步進(jìn)電機(jī)通用控制器，可以滿足大多數(shù)控制場(chǎng)合下的要求。 （ 2） 12 位 A/D 轉(zhuǎn)換器 ADC；完成模擬設(shè)定功能。以超過最高起動(dòng)頻率的頻率直接起動(dòng)，將出現(xiàn) 失步 現(xiàn)象，甚至無(wú)法起動(dòng)。 ② 未知突跳頻率，則按段擬合至給定的起動(dòng)頻率，每段頻率的遞增量（后稱階梯頻率） △f=f/8,即采用 8 段擬合。 速度與定時(shí)器初值的轉(zhuǎn)換 本系統(tǒng)的速度控制是依靠定時(shí)產(chǎn)生 CP 脈沖來(lái)完成的，設(shè)定的速度與產(chǎn)生CP 脈沖的定時(shí)器初值間存在一定關(guān)系。 定時(shí)初值 =所需定時(shí)值 /計(jì)數(shù)周期；對(duì)于步進(jìn)電機(jī)其速度值常以頻率形式給定，諸如運(yùn)行在 20KHZ 下，因此上式可轉(zhuǎn)換為：定時(shí)初值 =計(jì)數(shù)頻率 /
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