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Application of Dual-Port RAM in Power Quality Monitoring Device Based on Dual-CPU

Weiming Tong

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Abstract

Aiming at problem of high speed and great number data exchange between DSP and ARM,a shared dual-port RAM scheme was presented to design power quality monitoring device based on dual-CPU.The function of dual-port RAM was described and the interface circuit of dual-port RAM,DSP and ARM was also designed.According to write/read timing,the configuration method of external memory interface registers of DSP and ARM was proposed,and source code was given.The running result shows that the design can meet request of stable and real-time data exchange between DSP and ARM.

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What this paper is about

Aiming at problem of high speed and great number data exchange between DSP and ARM,a shared dual-port RAM scheme was presented to design power quality monitoring device based on dual-CPU.The function of dual-port RAM was described and the interface circuit of dual-port RAM,DSP and ARM was also designed.According to write/read timing,the configuration method of external memory interface registers of DSP and ARM was proposed,and source code was given.The running result shows that the design can meet request of stable and real-time data exchange between DSP and ARM.

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Available abstract

Aiming at problem of high speed and great number data exchange between DSP and ARM,a shared dual-port RAM scheme was presented to design power quality monitoring device based on dual-CPU.The function of dual-port RAM was described and the interface circuit of dual-port RAM,DSP and ARM was also designed.According to write/read timing,the configuration method of external memory interface registers of DSP and ARM was proposed,and source code was given.The running result shows that the design can meet request of stable and real-time data exchange between DSP and ARM.

Key concepts: Digital signal processing, Port (circuit theory), Interface (matter), Computer hardware, Dual (grammatical number), Computer science, Embedded system, Power (physics)

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