Configuring GPIO10\11

[EvgenyMuryshkin]

Hi,

For some reasons I can't control GPIO 10 and 11.
I can set them to be input or output (using sub-20 tool), but in output mode when i try to set value to 0 it automatically switches back to 1.

Are they dedicated only to RS or something wrong with configuration im doing?

(set Cfg to 1, Val to 0, Mask to 1 on both, Press Set Config\Write, Val switches back to '1')

Thank you.
Evgeny.

[jon@ktizo.co.uk]

Try disabling the RS232 port. Using the SUBTOOL, go to the RS232 tab, then uncheck the "RX/TX enable" checkboxes.

[EvgenyMuryshkin]

wow, thanks..

actually, when I openned RS tab, both checkboxes were unchecked, which most likely confused me from the beginning.
So what I had to do is enable RS (press set config) and then disables it (press set config again).

After that I'm able to control these IOs,

Thanks,

Regards,
Evgeny.

[serg]

Hi Evgeny

...So what I had to do is enable RS (press set config) and then disables it (press set config again)...

You don't need to enable the RX/TX before disabling them, you can just click the "Set Config" button while "RX Enable" and "TX Enable" are unchecked. This should disable the RX/TX in case they were enabled before. You can also read the current SUB-20 board configuration by clicking the "Get Config" button on the right.