bigtreetech / BTT-TFT35-E3-V3.0

BIGTREETECH TFT35-E3 V3.0 is a medium size, dual-mode, ultra-clear 3D printing machine display launched by the 3D printing team of Shenzhen BIGTREE Technology CO., LTD., which can perfectly replace the original LCD screen of Ender3 printer.

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"no printer attached" error on skr e3 turbo #56

Closed DannyGi82 closed 3 years ago

DannyGi82 commented 3 years ago

I've installed today the skr e3 turbo on my ender 3 v2. The pack from amazon is comprensive with tft35-E3 v3. I've follow the pin diagram and connect the tft cable to the board, update the firmware with last pre compiled, set the baudrate for both to 115200, but the error is still in place. The port configuration is: `#define SERIAL_PORT -1

define SERIAL_PORT_2 0`

Uncommented the #define CR10_STOCKDISPLAY and #define REPRAP_DISCOUNT_SMART_CONTROLLER and #define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER

Marlin emulation work perfectly.

How i can fix this? Thank you

oldman4U commented 3 years ago

Only CR-10 Stockdisplay and serial port 2 and -1.

DannyGi82 commented 3 years ago

Only CR-10 Stockdisplay and serial port 2 and -1.

Done. Same error message

oldman4U commented 3 years ago

Broken hardware? Most likely the cable.

radek8 commented 3 years ago

-1 is a USB port 2 is TFT

set

define SERIAL_PORT 2

define SERIAL_PORT_2 - 1

DannyGi82 commented 3 years ago

Broken hardware? Most likely the cable.

No, the tft cable have rx and tx pin inverted. Push out this pins from block and put in in right position and voilà the tft35 magically work!

oldman4U commented 3 years ago

So you mean that two of the five strings of the RS232 cable have been twisted and this cable came with the TFT?

DannyGi82 commented 3 years ago

So you mean that two of the five strings of the RS232 cable have been twisted and this cable came with the TFT?

Yes, exactly