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av500
Associate II
March 27, 2026
Question

CubeMX2, even when doing transmit or receive only I2S, both SDI and SDO are muxed

e.g. select I2S with "Master transmit" which should only use I2S_CK, I2S_WS and I2S_SDO, yet the I2S_SDI pin is also muxed and blocked for other use (and both DMA directions are available)

Screenshot_20260327_113109.pngScreenshot_20260327_113140.png

 

5 replies

av500
av500Author
Associate II
March 27, 2026

with old CubeMX, one could select a custom sample rate:

Screenshot_20260327_112703.png 

new CubeMX2 only provides a fixed list, it should also allow a user defined sample rate

ST Technical Moderator
March 27, 2026

Hello @av500 

Thank you for bringing this issue to our attention.

I reported this internally.

Internal ticket number: CDM0061115

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