Embedded system design question
- From: arut@xxxxxxxx
- Date: 31 Oct 2007 15:03:03 -0700
Hi,
I need to design a system as depicted below. Multiple applications
communicating with a middle layer which in turn communicates with
drivers(Note: The communication between app<-->middle<-->driver is
full duplex).
Do I need to have a function call interface between application and
middle layer or should the middle layer be a task (multiple tasks).
Ideally all applications should have a single interface to the middle
layer. What IPC mechanism would be best suited for this design. Should
it be a task based design or function calls or both?
......... ........... ........
| app 1| | app 2| | app 3|
........... ........... ..........
\ / \ / \ /
\ / \ / \ /
------------------------------------------
| middle layer |
------------------------------------------
\ / \ /
...\..../.. \....../....
| drv 1| | drv2 |
........... ...........
Thanks,
asm
.
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