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question about interrupt

Question asked by cai bai on Sep 28, 2016
Latest reply on Sep 28, 2016 by igorpadykov

i use imx6sx-sd board and have some  question about how interrupt work

if i set GPIO6_2 as interrupt pin at both Cortex-A9 and Cortex-M4,when this pin is trigger,which core will handle this interrupt signal

i read <Getting_Started_with_Multicore_Programming_for_i.MX_6SoloX_V0.pdf> about low power function,it means that when Cortex-M4 set into low power mode , linux will close Cortex-M4 clock and  Cortex-M4 can't wake up by  interrupt direct. it only let linux register wake up interrupt souce and first wake up linux ,then linux open Cortex-M4 clock and let it run out low power mode ?

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