Post (power on self test) debug system and method
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United States of America Patent
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Jul 21, 2009
Grant Date -
Jul 26, 2007
app pub date -
Mar 29, 2006
filing date -
Dec 14, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A POST (power on self test) debug system and method applicable to an electronic device is proposed. First, a reading module reads a POST code of a sub-routine to be executed when the electronic device is started up to execute a power on self test, and sends the POST code to a processing module. When the processing module receives the POST code, the processing module temporarily stores the POST code and detects whether the temporarily stored POST code has been changed at a predefined time interval. If no, the processing module records the temporarily stored POST code such that a user can fine reason for error according to the recorded POST code and repair the system timely. Such a debug system is simple and easy to implement.
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