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MSPM33-SDK: How to set SPI Clock frequency to 25 MHz in CCS

Brendon Lee
Prodigy 80 points

Part Number: MSPM33-SDK
Other Parts Discussed in Thread: SYSCONFIG

Hi, 

According to slasfb6 , shows that the SPI can reach 25 MHz as below.

image.png

 

I have configured the SPI pins under UC2 which is SDIO , and the VDD = 3.3 V according the table above.
image.pngimage.png

 

It seems like the SPI having the clock source from MCLK/2 (80MHz), which is impossible to have 25 MHz of SPI clock as the SCR =1 ( I captured this formula from the ti_msp_dl_config.c ) , is there any other ways to select the clock source from MCLK/2 (80MHz) to MCLK (160MHz) , to achieve 25 MHz.

image.png

image.png

image.png

image.png

CCS's version          : 20.5.0.28__1.11.0 
SDK's version          : 1.3.0.01
SysConfig's version : 1.27.0