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yk_wangkun
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樓主  發(fā)表于: 2007-04-22 22:29
[attachment=748] [attachment=748]  我曾寫(xiě)過(guò)一個(gè)測速的程序，用X0做輸入，電動(dòng)機轉速低的時(shí)候測量還能準確，但是轉速稍高點(diǎn)就檢測不到信號了。請大家指點(diǎn)下，應該是用中斷吧。謝謝

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[ 此貼被yk_wangkun在2007-04-27 11:46重新編輯 ]
xiugu
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1樓  發(fā)表于: 2007-04-24 12:50
spd指令 根據掃描周期決定是否采用中斷，再用PID反饋調節轉速

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