STM32L4 External clock sharing

[TBoya.1]

Hello, I am using an external crystal to generate the system clock for STM32L431CCT6.

How can this be shared with the rest of the devices like interface controllers. The goal is to implement Quad-SPI interface. For the purpose CAN controller MCP2515-I/ML is selected with SPI interface.

Thanks

[Mike_ST · Accepted solution]

Hello,

Not sure I understand well, but Quad-SPI and SPI interfaces provide their own clock.

Anyways if you want to output the XTAL clock, you can use "MCO" output, most of the time on PA8 pin.

[TBoya.1]

Thanks.