i.MX ProcessorsのトピックRe: imx6quad

imx6quad

brli — Fri, 12 Apr 2019 06:26:52 GMT

Hi,

I want to connect one key to a GPIO which must support EINT, and detect key clicked or not by EINT event.

but I don't find IOMUX supported EINT on imx6q, could you suggest a kind of GPIO except KEY_COL/ROW?

Thanks!!

Re: imx6quad

weidong_sun — Fri, 12 Apr 2019 09:36:39 GMT

Hello Br,

EINT means External Interrupt, right?

But I saw your requirement: connect a key to a GPIO of I.MX6Q, and if the key is pressed or released, you hope CPU can handle the interrupt event generated by the key, right?

If yes, It is no problem for i.MX6Q, you can connect the key to any one of GPIO pin. For one group GPIO, total number is 32, for example GPIO1[31:0], GPIO[15:0] share one interrupt number; GPIO[31:16] share one interrupt number.

More detailed information, you can find them in Reference Manuanl.

Have a nice day!

NXP TIC team

Re: imx6quad

brli — Thu, 25 Apr 2019 08:02:59 GMT

Hi Wigros,

Got it, Thanks!