I purchased a new board with included display to upgrade my printer from an MKS Gen L V1.0 8 bit board to a newer 32 bit board. Board: BigTreeTech SKR Mini E3 V3.0 Display: BigTreeTech TFT35 E3 V3.0.1 BTT sells this as a unit. Marlin firmware has a default firmware already built for this board Firmware-Ender3.bin, so I am sure the firmware can be properly built for it. My issue is that my printer is a delta so I need to compile the firmware for the board and cannot use the ender firmware which is cartesian. I am trying to setup the config and compile it but it continually errors with messages that seem related to the display. First there were messages about modified wiring which I as able to remove when I added ``` #define DIAG_JUMPERS_REMOVED #define NO_CONTROLLER_CUSTOM_WIRING_WARNING ``` into configuration.h Then I got messages about missing definitions for TOUCH_MISO_PIN, TOUCH_MOSI_PIN, TOUCH_CS_PIN, and TOUCH_SCK_PIN. I got past those but now am getting error messages from TFT_IO. The first few are : ``` Compiling .pio/build/STM32G0B1RE_btt/src/src/feature/controllerfan.cpp.o In file included from Marlin/src/feature/../module/stepper/../../feature/../lcd/tft_io/touch_calibration.h:25, from Marlin/src/feature/../module/stepper/../../feature/../lcd/marlinui.h:31, from Marlin/src/feature/../module/stepper/../../feature/tmc_util.h:25, from Marlin/src/feature/../module/stepper/trinamic.h:35, from Marlin/src/feature/../module/stepper/indirection.h:40, from Marlin/src/feature/../module/stepper.h:47, from Marlin/src/feature/babystep.cpp:31: Marlin/src/feature/../module/stepper/../../feature/../lcd/tft_io/tft_io.h:33:4: error: #error "TFT IO only supports SPI, FSMC or LTDC interface." 33 | #error "TFT IO only supports SPI, FSMC or LTDC interface." | ^~~~~ Marlin/src/feature/../module/stepper/../../feature/../lcd/tft_io/tft_io.h:37:4: error: #error "MAX_DMA_SIZE is not configured for this platform." 37 | #error "MAX_DMA_SIZE is not configured for this platform." | ^~~~~ ``` The display used at present is the CR10_STOCKDISPLAY, though it seems every supported display for this board gives similar errors. I have never previously used marlin since the MKS board worked fine with repetier firmware and it has been rock solid for over 4 years. New board, new firmware, and having problems. Any suggestions or advice on getting past these rocks? I can provide any additional info requested, including the Configuration.h and Configuration_adv.h files if needed. Thanks to all who may be able to assist. https://reprap.org/forum/read.php?1,892471,892471#msg-892471 Sat, 05 Sep 2026 19:10:24 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,892471,892475#msg-892475 https://reprap.org/forum/read.php?1,892471,892475#msg-892475
but this is not what you have.

This TFT display is not directly controlled by marlin. it is a serial device with cr10 emulation.

In firmware you setup CR10_STOCKDISPLAY and a serial port set to 2, that is all this display requires.]]> Dust General Sat, 08 Apr 2023 20:32:21 -0400 https://reprap.org/forum/read.php?1,892471,892471#msg-892471 https://reprap.org/forum/read.php?1,892471,892471#msg-892471 Board: BigTreeTech SKR Mini E3 V3.0
Display: BigTreeTech TFT35 E3 V3.0.1

BTT sells this as a unit.
Marlin firmware has a default firmware already built for this board Firmware-Ender3.bin, so I am sure the firmware can be properly built for it.

My issue is that my printer is a delta so I need to compile the firmware for the board and cannot use the ender firmware which is cartesian.

I am trying to setup the config and compile it but it continually errors with messages that seem related to the display.
First there were messages about modified wiring which I as able to remove when I added
```
#define DIAG_JUMPERS_REMOVED
#define NO_CONTROLLER_CUSTOM_WIRING_WARNING
```
into configuration.h

Then I got messages about missing definitions for TOUCH_MISO_PIN, TOUCH_MOSI_PIN, TOUCH_CS_PIN, and TOUCH_SCK_PIN.

I got past those but now am getting error messages from TFT_IO.
The first few are :
```
Compiling .pio/build/STM32G0B1RE_btt/src/src/feature/controllerfan.cpp.o
In file included from Marlin/src/feature/../module/stepper/../../feature/../lcd/tft_io/touch_calibration.h:25,
from Marlin/src/feature/../module/stepper/../../feature/../lcd/marlinui.h:31,
from Marlin/src/feature/../module/stepper/../../feature/tmc_util.h:25,
from Marlin/src/feature/../module/stepper/trinamic.h:35,
from Marlin/src/feature/../module/stepper/indirection.h:40,
from Marlin/src/feature/../module/stepper.h:47,
from Marlin/src/feature/babystep.cpp:31:
Marlin/src/feature/../module/stepper/../../feature/../lcd/tft_io/tft_io.h:33:4: error: #error "TFT IO only supports SPI, FSMC or LTDC interface."
33 | #error "TFT IO only supports SPI, FSMC or LTDC interface."
| ^~~~~
Marlin/src/feature/../module/stepper/../../feature/../lcd/tft_io/tft_io.h:37:4: error: #error "MAX_DMA_SIZE is not configured for this platform."
37 | #error "MAX_DMA_SIZE is not configured for this platform."
| ^~~~~
```

The display used at present is the CR10_STOCKDISPLAY, though it seems every supported display for this board gives similar errors.

I have never previously used marlin since the MKS board worked fine with repetier firmware and it has been rock solid for over 4 years.
New board, new firmware, and having problems.

Any suggestions or advice on getting past these rocks?

I can provide any additional info requested, including the Configuration.h and Configuration_adv.h files if needed.

Thanks to all who may be able to assist.]]> wildone General Sat, 08 Apr 2023 14:54:29 -0400