The combined interrupt problem of gpio6 signal 0-15 of imx6sx

[longh]

Hi everyone！

   In imx6sx, I need to use gpio6_io01 for interrupt input in Linux and gpio6_io02 for interrupt input in M4.

   However, during the test, it is found that only the last configured IO can respond to the interrupt. If gpio6_IO1 is configured first, and then gpio6_io02 is configured, only the A9 can respond to the interrupt. How to solve this problem?

[igorpadykov · Accepted solution]

Hi long

since this is combined interrupt, I am afraid it is not possible

to serve it simultaneously by both cores. May be useful to check

GPIO1 interrupts, they provide much more flexibility.

Best regards
igor
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[longh]

Thank you very much for your reply. I try to replace IO in the test