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SYSTEM AND METHOD FOR SUPPORTING REAL-TIME COMPUTING WITHIN GENERAL PURPOSE OPERATING SYSTEMS

  • US 20010054055A1
  • Filed: 06/07/1995
  • Published: 12/20/2001
  • Est. Priority Date: 06/07/1995
  • Status: Active Grant
First Claim
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1. A method of operating a computer system, comprising the steps of:

  • periodically executing a first operating system by a CPU of said system, said first operating system being a general purpose operating system and operating on a non-real-time basis;

    alternately with said first operating system, periodically executing a second operating system by said CPU of said system, said second operating system operating on a real-time basis;

    generating a repetitive time marker having a first period;

    multiplexing between said first and second operating systems for control of said CPU in response to said time marker, so that said first operating system has control of said CPU for a selected part of a cycle of operation and said second operating system has control of said CPU for a remainder part of said cycle of operation, each of said first and second parts and said first period being longer than said cycle of operation.

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