RE: PSoC 6 Pioneer Kit Roadtest - Project 5 - Dual Core Appplication

Jan Cumps — Fri, 26 Feb 2021 16:10:30 GMT

I ran the IPC semaphore example project for dual core, with the semaphore disabled.

To see what happens if you don't manage shared resources and let both controllers do what they want when they want:

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As expected, this is not a good idea if the right thing to do is have unique access at a single moment in time.

I like that about the example: they show how you can do it wrong too - to give a feel of why it's important for each processor to reserve shared resources while using them.

edit: here is how it looks if the shared resource is properly guarded with a semaphore:

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