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SKR 3 EZ MCU model different than what is supported? VERY confused!


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I recently purchased a SKR 3 EZ board and installed it into my printer. I followed the instructions laid out by BIGTREETECH, followed the manual, and went to install the firmware. However, the only available firmware is for a different MCU. I have the STM32H723T6, but the only available firmware is for the STM32H743VIT6. This project has been extremely confusing especially considering the only provided support (the online manual) still lists STM32H743VIT6 as the MCU! Please help me with this, I'm very lost. 

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  • 2 weeks later...

Hi, if u still have a problem:

For Marlin 2.1.2.1

In Configuration.h find and set board in this line:

// Choose the name from boards.h that matches your setup
#ifndef MOTHERBOARD
  #define MOTHERBOARD BOARD_BTT_SKR_V3_0_EZ
#endif

Then in Auto Build Marlin u should see:

image.png.aca06abf8c31f0772745b48c628591ef.png

Also make sure in platformio.ini u have STM32H723Vx_btt as default env:

[platformio]
src_dir      = Marlin
boards_dir   = buildroot/share/PlatformIO/boards
default_envs = STM32H723Vx_btt
include_dir  = Marlin

To build firmware use STM32H723Vx_btt it is working fine been testing it since February.

Hope this helps.

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Hello- I have a similar situation where the MCU I have on my SKR V3 EZ is the STM32G0B1RE, but in the boards.h file, there is not a matching definition under the ARM Cortex-M7 list of defined boards. 

There is the listing under STM32 ARM Cortex-M0+ for this MCU and the SKR mini E3 v3:

#define BOARD_BTT_SKR_MINI_E3_V3_0 4001 // BigTreeTech SKR Mini E3 V3.0 (STM32G0B1RE)

And there is the definition for this Motherboard,  but with a different MCU:

#define BOARD_BTT_SKR_V3_0_EZ 6007 // BigTreeTech SKR V3.0 EZ (STM32H743VG)

To summarize, I have the SKR V3 EZ Motherboard, and the STM32G0B1RE MCU, and I'm looking for the correct combination of default-envs for platformio.ini and Motherboard for Configuration.h

I am currently using the Marlin 2.1.2.1 release.

Thank you very much for your time and assistance.

-Steve

 

 

 

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  • 4 weeks later...

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