Dear STM32 Community,
I am currently working on a project that uses the STM32U575CGU3 microcontroller. The goal of the project is to display pressure and temperature values over CAN J1939 and CANopen communication protocols in a digital output format.
For sensor data acquisition, I am using an external two-channel ADC to measure pressure and temperature values.
Regarding the system clock, I have tested the application using both the internal clock source and an external crystal oscillator. The system performs well in both configurations.
However, I would like to request your expert guidance on the recommended clock source for this application. Specifically:
Is it advisable to use the external crystal for better timing accuracy and long-term stability?
Or is the internal clock sufficiently reliable for CAN J1939 and CANopen communication in a production environment?
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