Hi NXP,
As question above, I get a trouble when approach GPIO in iMX6UL-EVK board.
After find out location of GPIO 25 pin, I try to configure it by:
$ echo 25 > /sys/class/gpio/export
$ echo "out" > /sys/class/gpio/gpio25/direction
$ echo 1 > /sys/class/gpio/gpio25/value
And I test with a red LED. But LED is still no light. (LED is working good with other device and GPIO pin is exactly. )
Does this problem is belong to declare GPIO pin devicetree ? And what should I do now ?
Thank you so much,
Toan
Solved! Go to Solution.
Hello,
use imx6ul.dtsi : gpio1 should be included; usrt2 disabled.
imx6ul.dtsi\dts\boot\arm\arch - linux-imx - i.MX Linux kernel
Have a great day,
Yuri
-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
Hello,
use imx6ul.dtsi : gpio1 should be included; usrt2 disabled.
imx6ul.dtsi\dts\boot\arm\arch - linux-imx - i.MX Linux kernel
Have a great day,
Yuri
-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.