Hi.
I was searching for a crystal that meets the requiremets for the HSE of the MCU I´m using (STM32L4P5RGT6) at the beginning I tried to make the corresponding calcuations by myself but after researching I noticed that for some calculation I needed make physical measurements of the crystal (I dont even have the crystal as well as the oscilloscope) because of that I tried to have some guidance on evalutation boards that implemented the same line of the MCU I was trying to use on its evaluation board, but I found that many of the evaluation board use LSE using 32.768kHz crystals, so in that point I ask my self "What external clock source do I need in first place?"
I`m going to implement the above MCU with basic componentes that ones to can start the MCU as well as some DCMI interface ans some serial interfaces as well (I2C, SPI), analog peripherals and USB.
I´m beginner in the MCU design so, what external clock source do I need?
Thanks for your help.
