AM6422: GPIO toggling is not happening on SK-AM642B EVM

Ankush J

Prodigy 40 points

Part Number: AM6422

Tool/software:

Hi ,

Am using SK-AM642 EVM for the project development purpose.

TI-SDK version : 09.02.01.10

I am trying to toggle the PRG0_PRUGP10 pin (pin 23 on J10 connector). I have configured it as GPIO1_30 in the dts.

I have made the dts changes . How to calculate the kernel pin number that is to be exported in the gpio sysfs node.

Pls suggest.

Regards,

Ankush

11 months ago

0 Krunal Bhargav34 11 months ago

TI__Mastermind 44575 points

Hi,

Our expert is currently out of office and please expect delays in response.

Regards,
Krunal

0 Ankush J 11 months ago in reply to Krunal Bhargav34

Prodigy 40 points

okay, wen can i get an response to the query ?

0 Krunal Bhargav34 11 months ago in reply to Ankush J

TI__Mastermind 44575 points

Hi,

He will be back in office tomorrow and will try to follow up in 24-48 hours.

Regards,
Krunal

0 Anshu Madwesh 11 months ago in reply to Krunal Bhargav34

TI__Genius 17860 points

Hi Ankush,

First you can check the output of 'ls -l /sys/class/gpio' which will tell you the base gpiochip number. For GPIO1, the address is 0x000601000. Then you can export that base number + 30 (for GPIO1_30).

Thanks,

Anshu

0 Ankush J 11 months ago in reply to Anshu Madwesh

Prodigy 40 points

Thanks for ur support. ! This resolved my query.

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AM6422: GPIO toggling is not happening on SK-AM642B EVM