No printer attached error nightmare !

[Zfrenchy]

Hello all,
I am building all custom 3Dprinter, barely 500x500x500mm print volume.

Here the hardware:
SKR 1.4 turbo with BTT eprom and DCDC module
TFT35 v3.0
two (X and Y) BTT S42C
two Z axis motor on TMC2209
X and Y end-stop
PandaPI BD sensor for Z end-stop and bed levelling
E3D hemera XS extruder
BTT filament sensor.

I cannot figure-out what is wrong with my settings, I constantly have this error: No printer attached.
Please help, here is my config files, Marlin 2.1.2.1 and TFT:

https://drive.google.com/drive/folders/1g4EgKCQwZufWgjjsDk9zrcJ-xRf8V5V4?usp=sharing

Thank you.

[radek8]

In Maril you don't have a defined serial port for TFT

changes
//#define SERIAL_PORT_2 -1 //EG -
on
#define SERIAL_PORT_2 0