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CCS/AM4379: export interrupt from PRU-ICSS for signaling the other PRU-ICSS

Simon Friedrich
Prodigy 40 points

Part Number: AM437x

Tool/software: Code Composer Studio

Hello,

I try to interrupt ICSS0_PRU0 by creating an interrupt from ICSS1_PRU0.

By referring to FAQ I mapped event 16 to channel 7 and channel 7 to host 7 using ICSS1_PRU0.

Moreover, I mapped event 56 (as it should be used for interrupts arcoss ICSS1/0) to channel 1 and channel 1 to host 1 on ICSS0_PRU0.

So my intention is to recognize the interrupt by simply polling bit 31 of R31 on ICSS0_PRU0. Is this a possible way to built a communication between the two ICSS?

The mapping each ICSS seems to work right, as I was able to use an event across PRU0 and PRU1 before.

Thanks.