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STM32H7 hrtimer example(s)

dejan
Associate II

Are there some working hrtimer examples for STM32H7 floating around?

20 REPLIES 20
Vincent Onde
ST Employee

​Hello,

I confirm here is no DLL on the H7 series. You can check this with the oscilloscope: you'll see the output dithering, with 2 edges 2.5ns apart.

On a device with the DLL (F3, G4), you wouldn't see any dithering on the edge.

The reason why we cut this out of the spec are the following:

  • the dithering does not behave properly when adjusting duty cycle (it does not dither for some period value)
  • This operating mode has not been verified thoroughly, we cannot commit on the global HRTIMER functionnality.

Best regards,

Vincent