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question about OSC32_OUT amplitude (STM32L562 LSE crystal mode)

Jerry_Cao
Associate

follow-on from: STM32L562: frequency error when outputting LSE via MCO (crystal mode); bypass OK (solved).


Hi all,

When LSE is configured in crystal mode, I tried probing OSC32_OUT directly with an oscilloscope probe, but I see no visible waveform (it may be too small or the probing may be loading the oscillator).

Could anyone share:

  1. Is there any typical/expected voltage amplitude range on OSC32_OUT (e.g., mVpp / Vpp) when LSE crystal mode is running normally on STM32L562 / STM32L5?

 

 

Jerry_Cao_0-1767948128195.png

 

Thanks!

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