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Adds support for Blues Cygnet Feather STM32L433CC.

Changes:

  • Adds board files for STM32L433
  • The STM32L433 requires a different TinyUSB driver as well as a different USB ISR (as the L433 doesn't support USB OTG)
  • The enable/disable interrupts code appeared to be failing and disabling all interrupts after a certain period. Rewritten to attempt to resolve this issue

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@tannewt tannewt left a comment

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Thanks! Please rename the board folder to blues_cygnet or something similar that includes the company name as well as the board name.

@Bucknalla Bucknalla requested a review from tannewt April 2, 2025 18:20
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Thanks!

@tannewt tannewt merged commit ad73d0b into adafruit:main Apr 5, 2025
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@zfields zfields deleted the blues-add-cygnet branch November 25, 2025 11:31
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2 participants