(05-23-2022, 03:20 PM)emil1402 Wrote: Output of command:
https://imgur.com/QL5im1N
Now connected:
RX converter to RX RPI
TX converter to TX RPI.
Still after connecting pin 2 of the DB9 plug, the MMI panel is inactive.
Do you mean pin 2 of DB9 male or female plug? It makes a difference - pin 2 of female DB9 is TX but pin2 of male DB9 is RX.
Pin16 of MMI panel is TX so it should be connected to Pin 3 of DB9 male plug (TX).
https://www.virtual-serial-port.org/arti...32-pinout/
What do you mean by inactive MMI panel? If you mixed TX line of MAX3232 with Pin16 of MMI panel (TX as well) then panel probably will not respond at all even in MMI system.