INTER-CPU COMMUNICATION SYSTEM AND INTER-CPU COMMUNICATION METHOD

PROBLEM TO BE SOLVED: To optimally control weight processing in inter-CPU communication depending on waiting time of synchronization.SOLUTION: In an inter-CPU communication system 800 in which a transmission side CPU and a reception side CPU perform data communication with each other through a memor...

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Bibliographic Details
Main Author OCHIAI SHINICHI
Format Patent
LanguageEnglish
Published 05.01.2012
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To optimally control weight processing in inter-CPU communication depending on waiting time of synchronization.SOLUTION: In an inter-CPU communication system 800 in which a transmission side CPU and a reception side CPU perform data communication with each other through a memory 104, the transmission side CPU includes: a memory area determination part 351 for determining whether a free space exists in the memory 104; a data writing part 352 for writing data in the memory 104, when a free space exists; the reception side CPU determination part 353 for determining a state of the reception side CPU, when a free space does not exist; and a transmission side control part 354 for instructing the data writing part 352 to be in a waiting state until a free space in the memory 104 is available when a state of the reception side CPU is in an execution state of data reading processing, and transmitting a reading start request to the reception side CPU to instruct the reception side CPU to start execution of the data reading processing when a state of the reception side CPU is not in an execution state of the data reading processing.
Bibliography:Application Number: JP20100140383