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gk2011
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樓主  發(fā)表于: 2010-05-24 13:46
請教2相2輸入高速計數器是如何進(jìn)行加數計數和減數計數的？？？
nbwrk
樹(shù)不要皮必死無(wú)疑！人不要臉天下無(wú)敵！
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1樓  發(fā)表于: 2010-05-24 13:56
加減計數是A 相和B相相差90度 也就是一個(gè)提前四分之一周期 一個(gè)落后四份周期  A在前B在后是加 相反是減速

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