Multicore (autosar)

Question

I am working on enhanced BSW allocation (multicore). I have two codes running on different cores, both will have different build, i.e., two elf files. I want both the cores to communicate in this case without the use of IOC and RTE using shared memory.

score 1 · Answer 1 · answered Jul 18 '17 at 00:27

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You could also try to hook such HW sync mechanisms maybe by ISRs to ExternalTriggerEvents in the RTE of each, or by some ComplexDriver doing the same.

answered Jul 18 '17 at 00:27

kesselhaus

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score 0 · Answer 2 · answered Jul 14 '17 at 15:04

Semaphores are one thing. Take a look at NXP's AN4805, which is for PowerPC hardware architecture but gives a good idea what's in it.

A semaphore is a variable or abstract data type that provides a simple but useful abstraction for controlling access by multiple processes to a common resource in a parallel programming or multi-user environment. Semaphores are the predominant method in access control in parallel programming and multi-threaded programming environments since their invention in 1965 by the late Edsger Dijkstra, a Dutch computer scientist. Although the semaphore concept was further enhanced from its original principle into many variations, they all serve a similar purpose: to grant access to shared resources without race conditions. ...

Then there is also OpenAMP, but I have not seen it around in the AUTOSAR context.

score 0 · Answer 3 · answered Oct 10 '18 at 15:41

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If you are developing according to AUTOSAR, then you may want to read what AUTOSAR specifies for Multi-core System development.

AUTOSAR_EXP_MultiCoreGuide.pdf

answered Oct 10 '18 at 15:41

Snake Sanders

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Multicore (autosar)

3 Answers3