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DSP-ARM INTERRUPTS

Hey all, 

I'm working on the OMAP L138.

Does some one have a simple code example of :

1. How to register in the arm side to an interrupt generated from the DSP. ( and how to clear it if needed ?! )

2. how to generate and interrupt from the arm to the DSP.

I need a simple implementation so that I can debug easily.

I know there is a package called IPC which implements this but I'm looking for something very simple not with function that cover function that cover function like IPC.

Something with request_irq function.

 

Much thanks in advance.