topic Re: kGPIO_IntRisingOrFallingEdge in i.MX RT Crossover MCUs

kGPIO_IntRisingOrFallingEdge

davidrozenski — Sun, 19 May 2019 08:52:04 GMT

Hello

Using RT1052, I would like to detect in GPIO interrupt handler if Interrupt was fired by rising or falling edge, I already configured I/O but did not find how in IRQ handler know which type of change occurs.

rgds

David

Re: kGPIO_IntRisingOrFallingEdge

victorjimenez — Thu, 23 May 2019 17:39:11 GMT

Hello David,

I highly recommend you to check the example igpio_input_interrupt. This example configures an interrupt with a rising edge, so it fits perfectly to your needs.

Also, you can use MCUXpresso Config tools to do this in a very simple way. Once you select the pin you want to use, under the section GPIO Interrupt you can select the option that fits better for your needs.

Hope it helps!
TIC

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Re: kGPIO_IntRisingOrFallingEdge

Jimmywder03 — Tue, 06 Sep 2022 17:34:10 GMT

Hello, I tried to use the example igpio_input_interrupt in a project of C++ and it does not work, but if i use it in a project of C it works well. As you know when i chose the example it comes in C but i would like to know what i need to use the same example but in C++ project.

Thanks for all!