Configuring SAI peripheral with MCUXpresso

[giuseppescarpi]

I am using the latest release of MCUXpresso to configure an iMX-RT1051.

When configuring the SAI1 interface, I can enable SAI1_TX_DATA[0..3] lines, but there is just ONE rx line (SAI1_RX_DATA0)

This seems an error, can someone confirm? In this case, is there any plan for a patch?

[igorpadykov]

Hi Giuseppe

seems reason is that SAI1_RX_DATA1-3 signals are used on MIMXRT1050-EVK
by HyperFlash and for boot selection : GPIO_SD_B1_00(01,02), GPIO_B0_10(11,12)
according to sect.34.7.354 SAI1_RX_DATA1_SELECT_INPUT DAISY Register
(IOMUXC_SAI1_RX_DATA1_SELECT_INPUT) i.MX RT1050 Reference Manual
https://www.nxp.com/docs/en/reference-manual/IMXRT1050RM.pdf 
and MIMXRT1050-EVK schematic SPF-29538
Schematics (1)
MIMXRT1050-EVK Design files
i.MX RT1050 Evaluation Kit|NXP 

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------