Orangepi plus GPIO Default value

[Jae Woo Song]

Hi dear.

I have some question about orangepi plus.

 

I am using orangepi+ and

The latest Armbian Debian Version was installed in emmc.

 

and i have some BLE Module.

 

but,

 

when i add my module to gpio pin, i can see I/O Error..but it's not always, somtimes there is no error.

and when i boot orangepi-plus, it is PULL-UP state.

 

i don't know this reason,

how can change default gpio pull-up or pull-down state?

or you have some idea?

 

thanks