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ebrombaugh1
ebrombaugh1
Associate III
March 28, 2026
Solved

CubeMX2: SPI/I2S UI allows enabling MCLK output even when no pins are available.

  • March 28, 2026
  • 1 reply
  • 218 views

On the STM32C542CC in LQFP48, none of the Port C pins that support I2S MCLK output are available. Despite this, enabling the "Master Clock Output" under "Advanced Features" in the MX2 Peripherals tab is still possible and reports no warnings or errors.

    Best answer by Saket_Om

    Hello @ebrombaugh1 

    Thank you for bringing this issue to our attention.

    The issue is fixed internally and will be available in the next release.

    1 reply

    S
    Saket_OmBest answer
    Technical Moderator
    March 30, 2026

    Hello @ebrombaugh1 

    Thank you for bringing this issue to our attention.

    The issue is fixed internally and will be available in the next release.

    "To give better visibility on the answered topics, please click on ""Accept as Solution"" on the reply which solved your issue or answered your question.Saket_Om"
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