CA2074633A1 - Real-time, concurrent, multifunction digital signal processor subsystem for personal computers - Google Patents

Real-time, concurrent, multifunction digital signal processor subsystem for personal computers

Info

Publication number
CA2074633A1
CA2074633A1 CA2074633A CA2074633A CA2074633A1 CA 2074633 A1 CA2074633 A1 CA 2074633A1 CA 2074633 A CA2074633 A CA 2074633A CA 2074633 A CA2074633 A CA 2074633A CA 2074633 A1 CA2074633 A1 CA 2074633A1
Authority
CA
Canada
Prior art keywords
dsp
real
digital signal
personal computer
signal processor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2074633A
Other languages
French (fr)
Other versions
CA2074633C (en
Inventor
Robert G. Baker
Bradley J. Debauche
Chris Dombrowski
Eric Jensen
Lloyd H. Massman
Melvin Mccain
Paul R. Swingle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of CA2074633A1 publication Critical patent/CA2074633A1/en
Application granted granted Critical
Publication of CA2074633C publication Critical patent/CA2074633C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
    • G06F9/4881—Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues
    • G06F9/4887—Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues involving deadlines, e.g. rate based, periodic

Abstract

A personal computer system includes a digital signal processor (DSP) subsystem that is connectable to a plurality of application specific hardware devices. A single DSP is operable under a DSP real-time operating system (RTOS) to concurrently handle a plurality of different signal processing functions on a real-time basis. A DSP data store is connected to the DSP and to the personal computer and includes addressable locations that emulate addressable I/O
registers associated with the application specific hardware devices to enable the personal computer to run a plurality of application programs controlling operation of the hardware devices. Performance is enhanced for I/O read and write operations by delaying halting of the DSP allowing such operations to complete in a cycle during which the DSP
is not accessing the data store.
CA002074633A 1991-09-03 1992-07-24 Real-time, concurrent, multifunction digital signal processor subsystem for personal computers Expired - Fee Related CA2074633C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/753,505 US5291614A (en) 1991-09-03 1991-09-03 Real-time, concurrent, multifunction digital signal processor subsystem for personal computers
US753,505 1991-09-03

Publications (2)

Publication Number Publication Date
CA2074633A1 true CA2074633A1 (en) 1993-03-04
CA2074633C CA2074633C (en) 1998-03-31

Family

ID=25030917

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002074633A Expired - Fee Related CA2074633C (en) 1991-09-03 1992-07-24 Real-time, concurrent, multifunction digital signal processor subsystem for personal computers

Country Status (4)

Country Link
US (1) US5291614A (en)
JP (1) JP2514296B2 (en)
BR (1) BR9203416A (en)
CA (1) CA2074633C (en)

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Also Published As

Publication number Publication date
US5291614A (en) 1994-03-01
BR9203416A (en) 1993-04-06
JP2514296B2 (en) 1996-07-10
JPH05274276A (en) 1993-10-22
CA2074633C (en) 1998-03-31

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Legal Events

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