[BUG] Marlin 2.1.x won't build with BTT_TFT35_SPI_V1_0 after using BigTreeTech repository instructions

[RoscoeTheDog]

Did you test the latest bugfix-2.1.x code?

Yes, and the problem still exists.

Bug Description

I have a BTT SKR 1.4 Turbo motherboard and a TFT3.5 v3.0 (non-E variant) touch screen display. I am trying to build Marlin 2.1.x (latest) branch for production. There are many required options needed according to the main bigtreetech repository found here. I've followed these instructions, uncommented the BTT_TFT35_SPI_V1_0 and I get the following compiler errors:

tft_spi.cpp

'TFT_SPI_DEVICE' was not declared in this scope
'LPC_SSPx' was not declared in this scope; did you mean 'LPC_SSP0'?

tft_spi.h

#error "Invalid TFT SPI configuration."
'LPC_SSPx' was not declared in this scope; did you mean 'LPC_SSP0'?

I've double checked that I did not skip over any options that are required as per instructions, and prior to trying to setup the LCD, I could build the firmware without all the display and required options enabled. Please see this link for archive of firmware configuration. its on gdrive because github won't allow <25mb.

Kind regards

Bug Timeline

No response

Expected behavior

No response

Actual behavior

No response

Steps to Reproduce

No response

Version of Marlin Firmware

2.1.x

Printer model

No response

Electronics

No response

LCD/Controller

No response

Other add-ons

No response

Bed Leveling

None

Your Slicer

None

Host Software

None

Don't forget to include

• A ZIP file containing your Configuration.h and Configuration_adv.h.

Additional information & file uploads

No response

[thisiskeithb]

BigTreetech's TFT35 V3.0 is not a TFT35 SPI V1.0. They are standalone computers running their own firmware / G-code senders that talk via serial and emulate REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER / REPRAP_DISCOUNT_SMART_CONTROLLER via the two EXP cables or CR10_STOCKDISPLAY via a single cable (like on an SKR Mini E3).

Disable BTT_TFT35_SPI_V1_0 and follow the rest of the instructions in BTT's touchscreen repo under the Marlin Dependencies section & Marlin Mode Setup where you'll enable REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER, among many other settings instead.

[ellensp]

BTT TFT35 SPI V1.0

BTT TFT35 V3.0

This Issue Queue is for Marlin bug reports and development-related issues, and we prefer not to handle user-support questions here. (As noted on this page.) For best results getting help with configuration and troubleshooting, please use the following resources:

• MarlinFW.org Marlin Documentation
• RepRap.org Marlin Forum
• Facebook Group "Marlin Firmware"
• Facebook Group "Marlin Firmware for 3D Printers"
• Marlin Configuration on YouTube
• 3D Printing Discord server. Join link: https://discord.gg/3dprinters
• Marlin specific Discord server. Join link: https://discord.gg/n5NJ59y

After seeking help from the community, if the consensus points to a bug in Marlin, then you should post a bug report.

[RoscoeTheDog]

Thank you for the quick response. I did not see this step as it was in the "marlin-mode" segment of the table of contents, which seems vaguely labeled for people who don't know what marlin emulation is.

Regarding support, I understand it takes time to respond and these are not priorities on the team's radar. I will refrain from posting further and take to discord it becomes more complex.

I implore you to take one more look for me please. I enabled REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER and disabled the other, which lead to other compiler errors. It seems there is something wrong with the I2C dependencies? The error seems unclear and googling around has been less fruitful.

Building in release mode
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\HAL.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\HAL_SPI.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\MarlinSerial.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\MinSerial.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\eeprom_flash.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\eeprom_sdcard.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\eeprom_wired.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\fast_pwm.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\include\digipot_mcp4451_I2C_routines.c.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\include\i2c_util.c.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\main.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\tft\tft_spi.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\tft\xpt2046.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\timers.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\u8g\LCD_I2C_routines.cpp.o
Compiling .pio\build\LPC1769\src\src\HAL\LPC1768\u8g\u8g_com_HAL_LPC1768_hw_spi.cpp.o
Assembler messages:
Fatal error: can't create .pio\build\LPC1769\src\src\HAL\LPC1768\include\digipot_mcp4451_I2C_routines.c.o: No such file or directory
*** [.pio\build\LPC1769\src\src\HAL\LPC1768\include\digipot_mcp4451_I2C_routines.c.o] Error 1
Assembler messages:
Fatal error: can't create .pio\build\LPC1769\src\src\HAL\LPC1768\include\i2c_util.c.o: No such file or directory
Assembler messages:
Fatal error: can't create .pio\build\LPC1769\src\src\HAL\LPC1768\u8g\LCD_I2C_routines.cpp.o: No such file or directory
*** [.pio\build\LPC1769\src\src\HAL\LPC1768\include\i2c_util.c.o] Error 1
*** [.pio\build\LPC1769\src\src\HAL\LPC1768\u8g\LCD_I2C_routines.cpp.o] Error 1
Assembler messages:
Fatal error: can't create .pio\build\LPC1769\src\src\HAL\LPC1768\u8g\u8g_com_HAL_LPC1768_hw_spi.cpp.o: No such file or directory
*** [.pio\build\LPC1769\src\src\HAL\LPC1768\u8g\u8g_com_HAL_LPC1768_hw_spi.cpp.o] Error 1
Assembler messages:
Fatal error: can't create .pio\build\LPC1769\src\src\HAL\LPC1768\main.cpp.o: No such file or directory
*** [.pio\build\LPC1769\src\src\HAL\LPC1768\main.cpp.o] Error 1
Assembler messages:
Fatal error: can't create .pio\build\LPC1769\src\src\HAL\LPC1768\tft\tft_spi.cpp.o: No such file or directory
*** [.pio\build\LPC1769\src\src\HAL\LPC1768\tft\tft_spi.cpp.o] Error 1
Assembler messages:
Fatal error: can't create .pio\build\LPC1769\src\src\HAL\LPC1768\tft\xpt2046.cpp.o: No such file or directory
*** [.pio\build\LPC1769\src\src\HAL\LPC1768\tft\xpt2046.cpp.o] Error 1
Assembler messages:
Fatal error: can't create .pio\build\LPC1769\src\src\HAL\LPC1768\timers.cpp.o: No such file or directory
*** [.pio\build\LPC1769\src\src\HAL\LPC1768\timers.cpp.o] Error 1

Kind regards

[thisiskeithb]

I implore you to take one more look for me please. I enabled REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER and disabled the other, which lead to other compiler errors. It seems there is something wrong with the I2C dependencies? The error seems unclear and googling around has been less fruitful.

After changing the display type from BTT_TFT35_SPI_V1_0 to REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER, your config compiles fine:

Linking .pio/build/LPC1769/firmware.elf
Building .pio/build/LPC1769/firmware.bin
Checking size .pio/build/LPC1769/firmware.elf
Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
RAM:   [====      ]  43.7% (used 14312 bytes from 32736 bytes)
Flash: [====      ]  42.6% (used 202332 bytes from 475136 bytes)
============================================== [SUCCESS] Took 38.80 seconds ==============================================

Environment    Status    Duration
-------------  --------  ------------
LPC1769        SUCCESS   00:00:38.796
============================================== 1 succeeded in 00:00:38.796 ==============================================
 *  Terminal will be reused by tasks, press any key to close it. 

26421 - corrected configs.zip

As ellensp stated above, please use the linked resources for further troubleshooting.

[RoscoeTheDog]

I implore you to take one more look for me please. I enabled REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER and disabled the other, which lead to other compiler errors. It seems there is something wrong with the I2C dependencies? The error seems unclear and googling around has been less fruitful.

After changing the display type from BTT_TFT35_SPI_V1_0 to REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER, your config compiles fine:

Linking .pio/build/LPC1769/firmware.elf
Building .pio/build/LPC1769/firmware.bin
Checking size .pio/build/LPC1769/firmware.elf
Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
RAM:   [====      ]  43.7% (used 14312 bytes from 32736 bytes)
Flash: [====      ]  42.6% (used 202332 bytes from 475136 bytes)
============================================== [SUCCESS] Took 38.80 seconds ==============================================

Environment    Status    Duration
-------------  --------  ------------
LPC1769        SUCCESS   00:00:38.796
============================================== 1 succeeded in 00:00:38.796 ==============================================
 *  Terminal will be reused by tasks, press any key to close it. 

26421 - corrected configs.zip

As ellensp stated above, please use the linked resources for further troubleshooting.

Odd! I tried again this morning and now it compiled. I think VSCode and platformio got closed down at one point and I had to reinit the IDE. It's possible platformio did not configure itself all the way properly when I reopened the project.

Thank you again. You both have been great help 🙏

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