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stm32/boards: Add NUCLEO-U5A5ZJ-Q board support. #17748

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@yn386 yn386 commented Jul 22, 2025

Summary

This change adds NUCLEO-U5A5ZJ-Q support to the STM32 port.
NUCLEO-U5A5ZJ-Q: https://www.st.com/ja/evaluation-tools/nucleo-u5a5zj-q.html
This board use STM32U5A5ZJ: https://www.st.com/ja/microcontrollers-microprocessors/stm32u5a5zj.html

I also posted a pull request: micropython/stm32lib#25 .
I will update .gitmodule when this pull request is merged.

Testing

  • REPL via ST-LINK/V3 VCP/built-in USB-C port.
  • Some part of following peripherals works: GPIO/Timer/I2C/SPI/ADC/DAC/RTC/USB
    but not tested all peripherals.
  • Run run-tests.py and it works as expected.

Trade-offs and Alternatives

There is no negative impact because this pull request does not change board definitions and implementation of other MCUs.

Remarks

This PR contains following PR because it is needed to implement DAC for STM32U5.
#17743

For STM32H5, DMA parameter should set:
 * Actual DMA source datawidth to CTR1.
 * The length is the amount of data to be transferred
   from source to destiniation in bytes.
to use 12bit DAC.

Signed-off-by: Yuuki NAGAO <wf.yn386@gmail.com>
@yn386 yn386 changed the title ports/stm32/boards: Add NUCLEO-U5A5ZJ-Q board support. stm32/boards: Add NUCLEO-U5A5ZJ-Q board support. Jul 22, 2025
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codecov bot commented Jul 22, 2025

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.41%. Comparing base (e993f53) to head (0bccff9).
Report is 25 commits behind head on master.

Additional details and impacted files
@@           Coverage Diff           @@
##           master   #17748   +/-   ##
=======================================
  Coverage   98.41%   98.41%           
=======================================
  Files         171      171           
  Lines       22210    22210           
=======================================
  Hits        21857    21857           
  Misses        353      353           

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yn386 added 3 commits July 23, 2025 08:08
Temporary reference to:
https://github.com/yn386/stm32lib/tree/stm32u5-1.8.0

Signed-off-by: Yuuki NAGAO <wf.yn386@gmail.com>
This change adds STM32U5 support to the STM32 port.
STM32U5A5ZJ: https://www.st.com/ja/microcontrollers-microprocessors/stm32u5a5zj.html

Signed-off-by: Yuuki NAGAO <wf.yn386@gmail.com>
This change adds NUCLEO-U5A5ZJ-Q support to the STM32 port.
NUCLEO-U5A5ZJ-Q: https://www.st.com/ja/evaluation-tools/nucleo-u5a5zj-q.html
This board use STM32U5A5ZJ: https://www.st.com/ja/microcontrollers-microprocessors/stm32u5a5zj.html

Signed-off-by: Yuuki NAGAO <wf.yn386@gmail.com>
@yn386 yn386 force-pushed the nucleo-u5a5zj-q branch from c9bbe0d to 0bccff9 Compare July 22, 2025 23:09
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Code size report:

   bare-arm:    +0 +0.000% 
minimal x86:    +0 +0.000% 
   unix x64:    +0 +0.000% standard
      stm32:    +0 +0.000% PYBV10
     mimxrt:    +0 +0.000% TEENSY40
        rp2:    +0 +0.000% RPI_PICO_W
       samd:    +0 +0.000% ADAFRUIT_ITSYBITSY_M4_EXPRESS
  qemu rv32:    +0 +0.000% VIRT_RV32

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