Method for identifying and communicating with a plurality of slaves in a master-slave system
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United States of America Patent
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Feb 8, 2005
Grant Date -
Apr 25, 2002
app pub date -
May 2, 2001
filing date -
Oct 25, 2000
priority date (Note) -
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Abstract
A method of identifying a plurality of slave processors using a master processor is provided which includes assigning a unique identification code to each of the plurality of slave processors, and transmitting an attention command from the master processor to the plurality of slave processors. The master processor then transmits a request for the slaves' unique identification code to the plurality of slave processors. The master processor then determines whether one of the plurality of slave processors unique identification code matches the classification characters. If there are no matches, a last added classification character is incremented by 1. If only one matches, the master processor identifies the one of the plurality of slave processors, and removes a last added classification character. Otherwise, if more than one matches, the master processor adds a new classification character, and sets a last added classification character to a minimum identification code character value.
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