Real-time, concurrent, multifunction digital signal...

G - Physics – 06 – F

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G06F 15/16 (2006.01) G06F 9/38 (2006.01) G06F 9/48 (2006.01) G06F 13/12 (2006.01)

Patent

CA 2074633

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.

Système d'ordinateur personnel comprenant un sous-système processeur de signal numérique (DSP) raccordable à un certain nombre de dispositifs matériels d'application spécifique. Un DSP unique peut tourner sous un système d'exploitation en temps réel DSP (RTOS) de façon à assurer simultanément diverses fonctions de traitement de signal en temps réel. Une mémoire de données DSP raccordée au DSP et à l'ordinateur personnel comprend des emplacements adressables qui émulent des registres d'entrée-sortie adressables associés aux dispositifs matériels d'application spécifique afin de permettre à l'ordinateur personnel d'exécuter un certain nombre de programmes d'application commandant l'exploitation des dispositifs matériels. La performance est améliorée pour les opérations de lecture et d'écriture d'entrée-sortie par retardement de l'arrêt du DSP, ce qui permet d'exécuter lesdites opérations selon un cycle pendant lequel le DSP n'accède pas aux données stockées.

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