How can you know that an update event on TIM5 (for example) is actually an overflow?

[JSven.9]

I set up tim5 in compare mode to get an interrupt at a specific tick, but I am also interested in the overflows. I get an update interrupt very early after starting the timer, so it is definitely not an overflow. Is there some register I should read after an update-event interrupt where I can disambiguate the type of update?

[waclawek.jan]

> interrupt very early after starting the timer

Using Cube? This is consequence of Cube forcing update by setting TIMx_EGR.UG, to enforce reload of PSC.

JW

[JSven.9]

Thanks JW, That may be the reason. But what I want to know is if I can tell the difference between one kind of update event and the overflow?

[waclawek.jan]

No, there's no such differentiating feature.

JW