| 摘要 |
PURPOSE: A method for sharing and using a shared memory of the multiple processors in realtime is provided to enhance the data processing rate between the processors by making the second processor process the data stored in the shared memory in realtime even if the first processor uses the shared memory. CONSTITUTION: The first processor accesses to the data through a VME(VERSA Module Eurocard) bus by connecting to the shared memory. If a request for using the shared memory is occurred by the second processor while the first processor uses the shared memory, a memory pointer checks an address of the shared memory finishing the access of the first processor. The data up to the checked address of the shared memory is copied and stored in a buffer of the second processor and the data stored in the buffer is parsed and processed.
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