Skip to main content
VPant.7
Associate II
March 27, 2026
Question

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

  • March 27, 2026
  • 1 reply
  • 325 views

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

 

1 reply

VPant.7
VPant.7Author
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

Technical Moderator
March 27, 2026

Hello @VPant.7 

Thank you for bringing this issue to our attention.

I reported this internally.

Internal ticket number: CDM0061115

"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"