PRU INTC Channel map

zhu

Expert 1925 points

Hi,

Suppose I map 4 system events from PRU0 to a channel and then map to PRU_EVTOUT0, then, when 1 of these system events triggered, arm get the interrupt of PRU_EVTOUT0, how can arm side program knows which system event of PRU was triggered?

-Zhu

over 14 years ago

0 melissaw over 14 years ago

TI__Genius 15900 points

Hi Zhu,

After detecting the interrupt of PRU_EVTOUT0, the ARM can read the System Interrupt Status Raw/Set Register 2 within the INTC (http://processors.wiki.ti.com/index.php/PRU_Interrupt_Controller#System_Interrupt_Status_Raw.2FSet_Register_2_.28SRSR2.29). This register corresponds to the physical address 0x01C34204.

Regards,

Melissa

0 zhu over 14 years ago in reply to melissaw

Expert 1925 points

Thank you so much, Melissa.

Regards,

-Zhu

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PRU INTC Channel map