[FR] STMicroelectronics STM32G4 MCU series of STM32 Nucleo-64 development boards

[Gamester17]

Description

Requesting HAL support in Marlin for STMicro's STM32 Nucleo-64 development boards with STM32G4 (STM32 G4) 32-bit MCUs.

https://www.st.com/resource/en/user_manual/dm00556337-stm32g4-nucleo-64-boards-mb1367-stmicroelectronics.pdf

https://en.wikipedia.org/wiki/STM32#STM32_G4

STMicro has so far released three STM32G4 devboards with STMicro's STM32 Nucleo-64 MB1367 reference board form factor.

• NUCLEO-G474RE with STM32G474RE
  • https://www.st.com/en/evaluation-tools/nucleo-g474re.html
  • https://www.st.com/en/microcontrollers-microprocessors/stm32g474re.html
• NUCLEO-G491RE with STM32G491RE
  • https://www.st.com/en/evaluation-tools/nucleo-g491re.html
  • https://www.st.com/en/microcontrollers-microprocessors/stm32g491re.html
• NUCLEO-G431RB with STM32G431RB
  • https://www.st.com/en/evaluation-tools/nucleo-g431rb.html
  • https://www.st.com/en/microcontrollers-microprocessors/stm32g431rb.html

They all have ARM Cortex-M4 core running 170Mhz, 512KB flash memory, 128KB RAM memory, ARDUINO Uno V3 connectivity and ST morpho headers, plus integrated STLINK debugger/programmer interface.

NUCLEO-G474RE was the of them to be released/available (which was about 18 months) and unlike the other two, NUCLEO-G474RE with STM32G474RE is part of the STM32G4 "hi-resolution line" so its MCU also features "Hardware Math Accelerator, High-resolution Timer v2, and High Analog level integration".

https://docs.platformio.org/en/latest/boards/ststm32/nucleo_g474re.html

https://docs.platformio.org/en/latest/boards/ststm32/nucleo_g431rb.html

NUCLEO-G474RE devboard with STM32G474RE MCU cost ~ $15 from STMicro direct and looks to be available at global distributors:

https://estore.st.com/en/nucleo-g474re-cpn.html

Additional Information

The STM32G4 series of MCUs as a whole have three lines of products:

• The STM32G4x1 Access line – general-purpose microcontrollers with an entry-level set of analog peripherals
• The STM32G4x3 Performance line – general-purpose microcontrollers with the maximum number of analog peripherals
• The STM32G4x4 Hi-resolution line with high-resolution timer and complex waveform builder plus event handler (HRTIM) for digital power conversion, such as digital switched-mode power supplies, lighting, welding, solar and wireless charging

STMicroelectronics claims that the STM32G4 series should have a high degree of compatibility with the STM32F3 (STM32 F3) series as the STM32G4 series is the next generation of Cortex-M4F microcontrollers aiming to replace STM32F3 (STM32 F3) series

https://www.st.com/content/st_com/en/about/media-center/press-item.html/p4159.html

https://www.st.com/en/microcontrollers-microprocessors/stm32g4-series.html

[X-Ryl669]

Is it supported in STSTM32 yet ? If not, please open a FR there first.

I am asking because it has to be supported here first so that Marlin could use it.

[Gamester17]

Is it supported in STSTM32 yet ? If not, please open a FR there first.

I am asking because it has to be supported here first so that Marlin could use it.

Both NUCLEO-G474RE and NUCLEO-G431RB are already supported by STSTM32 (but NUCLEO-G491RE is not supported there yet):

https://docs.platformio.org/en/latest/boards/ststm32/nucleo_g474re.html

https://docs.platformio.org/en/latest/boards/ststm32/nucleo_g431rb.html

https://github.com/platformio/platform-ststm32/blob/252752d7c2745e387862d11f26f35cf2180f5ead/boards/nucleo_g474re.json

https://github.com/platformio/platform-ststm32/blob/252752d7c2745e387862d11f26f35cf2180f5ead/boards/nucleo_g431rb.json

https://github.com/platformio/platform-ststm32/issues/496