TFT35v3 E3 and BTT SKR Mini E3 v2.0 - Driving Me Nuts!

[jaanbrotherns]

I've gone through the entire process several times now, starting from scratch, sanity checking, everything! To no avail, now I'm losing my mind. I'm using the exact test config as I have this exact setup, but can't get the screen to work, not even getting the garbled pixels. So, assumption here is I have my pins wrong - anyone think they can help me out?

Config:
[board_pins]
aliases:
EXP1_1=PB5, EXP1_3=PA9, EXP1_5=PA10, EXP1_7=PB8, EXP1_9=,
EXP1_2=PA15, EXP1_4=, EXP1_6=PB9, EXP1_8=PB15, EXP1_10=<5V>,

[display]
lcd_type: emulated_st7920
en_pin: EXP1_7
spi_software_sclk_pin: EXP1_6
spi_software_mosi_pin: EXP1_8
spi_software_miso_pin: PA3
encoder_pins: ^EXP1_5, ^EXP1_3
click_pin: ^!EXP1_2

[teeminus]

Check the EXP-Alias definition. The one from here (https://github.com/teeminus/NoTouchScreenFirmware/wiki/Klipper-display-configuration#tft35v3-e3-and-btt-skr-mini-e3-v12) looks different.

[jaanbrotherns]

flashed back to original and no luck there. Going back to your firmware and trying other pinouts.

[jaanbrotherns]

@teeminus DUDE! I got it! I flashed original firmware again and then dug through and found this config listing that worked a charm.

[board_pins]
aliases:
; # EXP1 header
EXP1_1=PB5, EXP1_3=PA9, EXP1_5=PA10, EXP1_7=PB8, EXP1_9=,
EXP1_2=PA15, EXP1_4=, EXP1_6=PB9, EXP1_8=PB15, EXP1_10=<5V>,
#
TFT_TX=PA2, TFT_RX=PA3

[display]
lcd_type: emulated_st7920
en_pin: EXP1_7
spi_software_sclk_pin: EXP1_6
spi_software_mosi_pin: EXP1_8
spi_software_miso_pin: TFT_RX
encoder_pins: ^EXP1_5, ^EXP1_3
click_pin: ^!EXP1_2

From here: #30

The above is working on my BTT E3 V2.0 with TFT35 V3.0 (I have a TFT35 E3 V3.0 that also works). Maybe update that for a working confirmed config on the main page?

Thanks for the all the help!

[teeminus]

Glad your screen is finally working :)

What do you mean by updating the main page? Both the TFT35V3 and the TFT35v3 E3 is marked as working already. Or did I misunderstand the question?

[jaanbrotherns]

Yea I'm just saying the above may be an add since I wasn't able to get the screen working based off of any of the listed combinations. Of course its up to you but wanted you to have my working config, etc. Thanks again!

[teeminus]

I will add the config to the wiki :)