topic Configuring pins in IMX6ULEVK in i.MX Processors

Configuring pins in IMX6ULEVK

chandraevolute — Wed, 29 Jun 2016 12:07:04 GMT

When I did cat /sys/kernel/debug/gpio

below is the output i got.

GPIOs 0-31, platform/209c000.gpio, 209c000.gpio:

gpio-3 (tsc_X- ) in hi

gpio-9 (VSD_3V3 ) out lo

gpio-19 (2190000.usdhc cd ) in hi

GPIOs 32-63, platform/20a0000.gpio, 20a0000.gpio:

GPIOs 64-95, platform/20a4000.gpio, 20a4000.gpio:

GPIOs 96-127, platform/20a8000.gpio, 20a8000.gpio:

gpio-119 (? ) out lo

GPIOs 128-159, platform/20ac000.gpio, 20ac000.gpio:

gpio-131 (? ) out lo

gpio-132 (headset detect ) in lo

gpio-135 (spi32766.0 ) out lo

gpio-136 (? ) out lo

gpio-138 (spi4.14 ) out lo

gpio-139 (spi4.14 ) out lo

GPIOs 248-255, spi/spi32766.0, 74hc595, can sleep:

what does this mean??

I want to configure gpio1_IO00 pin as I/O. I will connect a switch. whenever a switch is pressed it should generate a interrupt. and it should servie the ISR.

Re: Configuring pins in IMX6ULEVK

art — Thu, 30 Jun 2016 11:57:53 GMT

For detailed information on GPIO configuration and operation, please refer to the Chapter 3 "Machine-Specific Layer (MSL)", especially, to the IOMUX and GPIO sections, of the attached document.

Have a great day,
Artur

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Re: Configuring pins in IMX6ULEVK

chandraevolute — Wed, 06 Jul 2016 05:18:36 GMT

Thank you Artur.

Now I am able to configure the GPIOS and write high and low for the same. I am able to use gpio_keys, gpio_leds and normal Gpio driver.