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Share a single 8Mhz crystal between a 72mhz STM32F3, and  48 mhz STM32F0

Question asked by beaudry.lawrence on May 24, 2018
Latest reply on May 24, 2018 by T J

On a board I have stm32f3 and stm32f0, they are close and space is limited, I would like to share a single 8mhz crystal across both mcu, I would like somebody to simply indicate to me proper pinout so I may finish a pcb and debug the software later thank you

 

I understand that the f3 will have the external crystal connected to it and will drive one of its ouput to a dedicated input pin on the f0, thus the f0 will be receiving a purely digital clock  just as accurate, but wich pins will be involved in this process?

 

As in this post?

 

layout - What's the schematic to share one crystal with two micros? - Electrical Engineering Stack Exchange 

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