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Handling interrupt on GPP side.

Hugo Soares
Prodigy 50 points
Other Parts Discussed in Thread: OMAP-L138

Hi guys, how are you?

I'm very beginner in embedded Linux with omap programming, so bear with me please. I'm using OMAP-L138 (with embedded Linux) and I'd like to know how to capture and treat a interrupt sent from DSP.

I'm aware of DSP Link, but for licensing issues I can't use it (why haven't TI licensed it under LGPL?). So the steps to interrupt GPP from DSP are:

1. Write (from DSP) to register CHIPSIG (0x01C14174) LSBs [0-1] to cause GPP side only interrupt;

2. Catch interrupt and treat it; 

Is there any samples from TI where can I see step 2 being performed?

Thank you.