AD7730: Continuous Read

Apr 06, 2004 2 Replies
÷ÙÞÉÔÙ×ÁÀ Data Register × ÒÅÖÉÍÅ Continuous ÓÒÁÚÕ ÐÏÓÌÅ ÔÏÇÏ ËÁË RDY ÓÏÏÂÝÁÅÔ Ï ÇÏÔÏ×ÎÏÓÔÉ ÄÁÎÎÙÈ (ÐÏ ÐÒÅÒÙ×ÁÎÉÀ). ÷ÒÏÄÅ ×ÓÅ ÏË, ÚÎÁÞÅÎÉÅ ÐÏÈÏÖÅ ÎÁ ÐÒÁ×ÄÕ, ÎÅÍÎÏÇÏ ÛÕÍÉÔ - ÜÔÏ ÅÒÕÎÄÁ. ðÒÉÍÅÒ:
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íÏÖÅÔ ËÔÏ ÓÔÁÌËÉ×ÁÌÓÑ Ó ÔÁËÉÍ ÔÒÁÂÌÏÍ? ó SPI ×ÓÅ ÏË, Ô.Ë. Mode Register × ÒÅÖÉÍÅ Continuous ÞÉÔÁÅÔÓÑ ÂÅÚ ÓÂÏÅ×. üÔÏ ÎÅ ×ÎÅÛÎÑÑ ÐÏÍÅÈÁ, Ô.Ë. ×È.ÌÁÐÙ ÚÁËÏÒÏÔÉÌ. ÷ ÒÅÖÉÍÅ Single-Shot Conversions ÔÁËÖÅ ÞÉÔÁÅÔÓÑ ÂÅÚ ÓÂÏÅ×.
ðÏÈÏÖÅ ÞÔÏ ÒÁÂÏÔÁ SPI ÓËÁÚÙ×ÁÅÔÓÑ ÎÁ ÒÁÂÏÔÅ ÆÉÌØÔÒÏ× AD7730. òÅÚÉÓÔÏÒÙ ÐÏÓÔÁ×ÌÅÎÎÙÅ ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏ × ÌÉÎÉÉ SPI ÓÉÇÎÁÌÏ× É ÉÇÒÁÀÝÉÅ ÒÏÌØ RC-ÆÉÌØÔÒÏ× ÓÏ×ÍÅÓÔÎÏ Ó ×ÎÕÔÒÅÎÎÅÊ ÅÍËÏÓÔØÀ ÌÁÐ ÞÉÐÁ ÚÎÁÞÉÔÅÌØÎÏ ÓÏËÒÁÔÉÌÉ ËÏÌ-×Ï ÓÂÏÅ×, ÎÏ ÎÅ ÕÓÔÒÁÎÉÌÉ ÉÈ ÐÏÌÎÏÓÔØÀ.
íÉÌÏÓÔÉ×ÙÊ ÇÏÓÕÄÁÒØ Alexander!

07 áÐÒ 04 17:02, ÷Ù ÉÚ×ÏÌÉÌÉ ÐÏÓÌÁÔØ ÓÀÄÁ, × ÞÁÓÔÎÏÓÔÉ, ÓÌÅÄÕÀÝÅÅ:

AP> ðÏÈÏÖÅ ÞÔÏ ÒÁÂÏÔÁ SPI ÓËÁÚÙ×ÁÅÔÓÑ ÎÁ ÒÁÂÏÔÅ ÆÉÌØÔÒÏ× AD7730. òÅÚÉÓÔÏÒÙ AP> ÐÏÓÔÁ×ÌÅÎÎÙÅ ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏ × ÌÉÎÉÉ SPI ÓÉÇÎÁÌÏ× É ÉÇÒÁÀÝÉÅ ÒÏÌØ AP> RC-ÆÉÌØÔÒÏ× ÓÏ×ÍÅÓÔÎÏ Ó ×ÎÕÔÒÅÎÎÅÊ ÅÍËÏÓÔØÀ ÌÁÐ ÞÉÐÁ ÚÎÁÞÉÔÅÌØÎÏ AP> ÓÏËÒÁÔÉÌÉ ËÏÌ-×Ï ÓÂÏÅ×, ÎÏ ÎÅ ÕÓÔÒÁÎÉÌÉ ÉÈ ÐÏÌÎÏÓÔØÀ. åÓÌÉ ÍÎÅ ÓËÌÅÒÏÚ ÎÅ ÉÚÍÅÎÑÅÔ, ÔÏ SPI - ÓÉÎÈÒÏÎÎÙÊ ÉÎÔÅÒÆÅÊÓ. ÷ ÜÔÏÍ ÓÌÕÞÁÅ, ËÁË ÍÎÅ ËÁÖÅÔÓÑ, Ë ÎÅËÏÔÏÒÏÍÕ ÐÏÓ×ÅÔÌÅÎÉÀ ÍÏÖÅÔ ÐÒÉ×ÅÓÔÉ ÞÔÅÎÉÅ ÓÌÅÄÕÀÝÅÊ ÁÐÐÌÉËÕÈÉ. Line Driving and System Design. National Semiconductor. Application Note 991. April 1995. âÅÒÅÔÓÑ ÎÁ

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ðÏÓÌÅ ÞÔÅÎÉÑ ÁÐÐÌÉËÕÈÉ ÓÌÅÄÕÅÔ ÐÒÏÁÎÁÌÉÚÉÒÏ×ÁÔØ, ÎÅÔ ÌÉ ÎÅÎÁÒÏËÏÍ ×ÏÚÍÏÖÎÏÓÔÉ ÄÒÏÂÌÅÎÉÑ ÆÒÏÎÔÁ ÓÉÎÈÒÏÓÉÇÎÁÌÁ.

ðÒÉÍÉÔÅ Õ×ÅÒÅÎÉÑ × ÓÏ×ÅÒÛÅÎÎÅÊÛÅÍ Ë ÷ÁÍ ÐÏÞÔÅÎÉÉ. á.ð.çÕÓØËÏ×.

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