Setting SPI1 to the highest clock frequency

[HAhme.1]

Hello,

I just wanted to ask what's the best way to set the SPI and system clock in STM32L496 to have at least 40MHz frequency for the SPI1.

Thank you in advance

[waclawek.jan]

If the respective APB clock is 80MHz, setting SPI1_CR1.BR to 0b000 sets its clock to fPCLK/2 i.e. 40MHz.

JW