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bigtreetech / BIGTREETECH-SKR-V1.3

32bit board with LPC1768, support marlin2.0 and smoothieware, support lcd2004/12864, On-board TMC2130 SPI interface and TMC2208 UART interface no additional wiring is required
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SKR 1.4 TURBO and TFT 24 no printer attached message #314

Open jollyrob opened 4 years ago

jollyrob commented 4 years ago

I keep getting the no printer attached message in touchscreen mode. I have tried endless combinations of serial port numbers and baud rates. I still cannot get the screen to communicate with the board in touchscreen mode. It is fine in Marlin mode. Yes, all the connections are made EXP1 and EXP2 and the TFT ( reversed for this board as per the pinout diagram). Please help, I am considering returning the board as maybe faulty. Thank you

rdignard commented 4 years ago

Having similar issue with new SKR 1.4 turbo and TFT 3.5, no printer attached. I too am thinking this board is faulty. I was working with the SKR1.1 Pro board but due to an issue with Y endstop I switched over to the SKR 1.4 board. The display was working with the SKR 1.1 , but now with the SKR 1.4 I get no printer attached.

I-Abraxas commented 4 years ago

What Stepper motor driver sticks are you using? Only reason I ask is because it looks like certain drivers are supported in touchscreen mode while others are not. You can always try a supported driver and see if that fixes the problem.

jollyrob commented 4 years ago

I’m using A4988 drivers, are these supported in touchscreen mode? How can I find out? Seems odd not to have them supported.

I-Abraxas commented 4 years ago

Check the documentation for your specific touchscreen. That should help you find what you are looking for or talk to the manufacturer. I know that my specific touchscreen is compatible with DRV8825, TMC2208, or the TMC2209. I found the beginning of this video helpful when trying to understand what my touchscreen is doing in touchscreen mode: https://youtu.be/rexqrW6PbnQ

jollyrob commented 4 years ago

New board and TFT 24 arrived today, and finally the no printer message has disappeared. I used exactly the same connections and firmware as the old board. Hours of time wasted on a defective board!

Ripper80 commented 4 years ago

I have tried two different SKR motherboards, thinking I might have messed one up. I have not tried replacing the TFT yet....Same issue....endless cables swaps, Marlin changes, but nothing has worked yet,

Eddiiie commented 4 years ago

Set your baud rate to 115200?

mickeymicks commented 4 years ago

Initially, I thought that i had the same problem, always getting the "No Printer Attached" message. It turns out that it really just takes awhile for the LCD and the board to get connected. I don't know what's happening but the touch screen mode connects a little later than the Marlin mode. So maybe you're just having the same issue?

gallanzo commented 4 years ago

Buongiorno. Chiedo gentilmente un aiuto. Ho anch'io lo stesso problema con SKR V4.1 turbo con driver A4988 e TFT 24 V1.1."stampante non collegata". Ho letto di poli TFT invertiti(ruotando il connettore di 180°?) ed ha funzionato? Eventualmente si deve sostituire il TFT o la SKR. Grazie del vostro prezioso aiuto.

labotecno commented 4 years ago

regulator 3.3 v is dead you need replace it ... you can see the heat with your finger ...

BoomerT6 commented 3 years ago

I have the same problem myself. I have had it connect to the printer in the past, but it was a bit unreliable. After relocating the TFT I just got a blue screen when selecting the Marlin mode. I updated the firmware. Marlin mode now works fine, but now the "No Printer Attached" message has become a permanent feature! This thread kinda suggests replacement is the only fix!?