[BUG] STM32F103RE_btt with BTT SKR CR6 board: warning: "E2END" redefined

[Sebazzz]

Did you test the latest bugfix-2.0.x code?

Yes, and the problem still exists.

Bug Description

When compiling for the BTT SKR CR-6 board, a lot of warnings is given:

z:\dev\marlin\marlin\src\pins\stm32f1/pins_BTT_SKR_CR6.h:62: warning: "E2END" redefined
   62 | #define E2END           (MARLIN_EEPROM_SIZE - 1)  // 2KB
      |
In file included from C:\Users\sebas\.platformio\packages\framework-arduinoststm32\cores\arduino/board.h:17,
                 from C:\Users\sebas\.platformio\packages\framework-arduinoststm32\cores\arduino/wiring.h:41,
                 from C:\Users\sebas\.platformio\packages\framework-arduinoststm32\cores\arduino/Arduino.h:36,
                 from z:\dev\marlin\marlin\src\hal\shared\marduino.h:36,
                 from z:\dev\marlin\marlin\src\hal\stm32\hal.h:28,
                 from z:\dev\marlin\marlin\src\hal\hal.h:30,
                 from z:\dev\marlin\marlin\src\inc\marlinconfig.h:31,
                 from Marlin\src\lcd\dogm\ultralcd_st7920_u8glib_rrd_AVR.cpp:30:
C:\Users\sebas\.platformio\packages\framework-arduinoststm32\cores\arduino\stm32/stm32_eeprom.h:83: note: this is the location of the previous definition
   83 | #define E2END (FLASH_PAGE_SIZE - 1)
      |

Bug Timeline

Happens only when compiling for non-maple pio env

Expected behavior

There should be no warning.

Actual behavior

There is a warning.

Steps to Reproduce

1. Use attached config
2. Compile with pio env STM32F103RE_btt. Does not happen with _maple.
3. Warning galore

Version of Marlin Firmware

Latest

Printer model

Creality CR-6 SE

Electronics

BTT SKR CR6 board; filament sensor (stock)

Add-ons

No response

Bed Leveling

ABL Bilinear mesh

Your Slicer

Prusa Slicer

Host Software

OctoPrint

Additional information & file uploads

btt-skr-cr6-with-btt-tft-e3d-hemera.zip

[ellensp]

This silences it. Update Marlin/src/pins/stm32f1/pins_BTT_SKR_CR6.h Change

#define E2END           (MARLIN_EEPROM_SIZE - 1)  // 2KB

to

#ifdef __STM32F1__
  #define E2END           (MARLIN_EEPROM_SIZE - 1)  // 2KB
#endif

[thinkyhead]

E2END does not need to be defined by Marlin. However, Marlin uses E2END when MARLIN_EEPROM_SIZE has not been provided by the pins file. So you should just remove that obsolete line from the pins file.

[github-actions[bot]]

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