Hello,
Thank you for reporting this issue.
In fact, on the STM32F373 they are 3 SPIs (SPI1, SPI2 and SPI3) the SPI1 is located on the APB2 (Fmax = 72Mhz) and SPI2 and SPI3 are both on the APB1 (Fmax = 36Mhz). By changing the APB1 or APB2 frequency, STM32CubeMX calculates the Baud Rate for the SPI without taking on count if the selected SPI is on APB1 or APB2.
I will report this issue and it will be solved on the next update.
BR.
