Blinking LED of AM-3358 EVM

Hi,

Check the schematic of the board, these leds should be connected on some gpio pins. See which are the pins & then you can try using the sysfs entries.
Note that you may need to do the appropriate pinmux settings in dts first.

Best Regards,
Yordan

Hi,

i found those LED's are connected to IOEXPANSION Male bug connectors..........so how to use that..

Dear Yordan,
i have AM3358 general purpose EVM, in that except UARt_0 no UART is working(uart1,2,3,4) can you help in how to enable those......i did in this way i modified both am335x-evm.dts amd am33xx.dtsi file but there is no use still those are not responding......

Hi,

Why are you referring to uart? Leds should be connected to GPIO, uarts are usually used for serial console...
Can you post the modifications of the am335x-evm.dts?
Also did you found out which GPIOs are connected to IOEXPANSION? They should be numbered.

The following wiki explains how to control gpios from sysfs:
processors.wiki.ti.com/.../Linux_PSP_GPIO_Driver_Guide

Best Regards,
Yordan

Dear Yordan,

from the couple of months i'm struggling to  enabling the UART(1,2,3,4) finally i didn't so that every time i asking regarding the UART.........and i have one doubt here what package should i use for AM3358  GP EVM like SDK or PSP.....what is the difference between them

Hi Naveen,

Kernel sources should be the same, difference should be in the additional sw examples besides kernel sources & file system. Afaik the latest releases are only SDK.

Best Regards,
Yordan