How to define 9-bit SWSPI for use with Arduino nano and ILI9341

[erikan88]

When reading trough the documentation, I am under the impression that it is possible to run 9-bit SWSPI (altough slow) on an Arduino Nano connected to a display with ILI9341 driver.
Is this possible? If so- how do I define Arduino_SWSPI to use 9-bit instead of 8-bit?

Thanks

[moononournation]

no DC pin will be 9-bit

[erikan88]

Do I understand correctly if removing "9 /* DC */" from code below is the same as declarning no DC pin ?

Arduino_DataBus bus = new Arduino_SWSPI(9 / DC /, 10 / CS /, 13 / SCK /, 11 / MOSI /, GFX_NOT_DEFINED / MISO */);
-->
Arduino_DataBus bus = new Arduino_SWSPI(10 / CS /, 13 / SCK /, 11 / MOSI /, 12 / MISO */);

My schematic below:

The Mode that is used on the display assembly is this one:

[erikan88]

[moononournation]

you should pass GFX_NOT_DEFINED as DC parameter

[erikan88]

That did the trick, it is working as intended now!
Thank you for your quick support :)