External clock requirement on N6 Family

[Panda]

Hello,

 

I was wondering about the reasons to supply external clocks to the N6 MCU, since it seems that via HSI and LSI there are clocks integrated into the MCU.

 

I am having trouble to understand whether the internal clocks can satisfy my requirements:

- I don't have special accuracy requirements for LSE/LSI nor HSI/HSE

- I am using the CSI-2 interface

- I am using SPI and UART Interface

 

Are there reasons to supply external clocks?

Are there other considerations that I might have to take into account? (especially for example considering data rates of the interfaces that I am using or other)

 

Best Regards

Lucas

[Tesla DeLorean]

Generally it's things like Ethernet, USB and CAN which have critical timing expectations / standards.

Async UART does not, and can tolerate several percent error. Synchronous, where you provide the clocking, like SPI or camera sources, providing a clock, also generally safe.