Mitsubishi Electric MELIPC MI5000 Series User Manual page 155

15.2
Shared Memory Access Function
This function performs inter OS communications by using shared memory, which is accessible bidirectionally from the
VxWorks part and Windows part.
Inter OS communication using shared memory
Use C Controller module dedicated functions to read data of memory accessible bidirectionally by the Windows part and
VxWorks part.
Shared memory is an area to share data between operating systems of the Windows part and VxWorks part.
Access from external devices other than the shared memory monitor of MI Configurator is not possible. To
browse data of the shared memory from GOT or other external devices, copy data to the buffer memory or a
device that can be accessed from external devices.
(1)
(1) VxWorks part
(2) Windows part
(3) Shared memory
(4) File access
■Function list
Function name
CCPU_ReadSharedMemory
CCPU_WriteSharedMemory
For details on the C Controller module dedicated functions, refer to the following manual.
MELIPC MI5000 Series Programming Manual (Windows)
MELIPC MI5000 Series Programming Manual (VxWorks)
■Shared memory size
A size of 256 MB can be used as shared memory.
■Shared memory monitoring
Shared memory values can be monitored, changed, and output as a .csv file by shared memory monitoring.
For details on shared memory monitoring, refer to the following.
MI Configurator Operating Manual
(4)
Description
Reads data from the shared memory of a MELIPC.
Writes data to the shared memory of the MELIPC.
(2)
(3)
(4)
15.2 Shared Memory Access Function
15 OS LINKING FUNCTIONS
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