STM32F030 HSI clock output on MCO pin

[David.Fabian]

Hi,

I have configured my Nucleo-64 board with the STM32F030R8 with the STMCube software.

The HSI is set as system clock (no PLL) and measured over the MCO pin (PA8). I will attach the main.c.

The measurement you can see below.

There are breaks within the clock signal so the controller stops running.

Do you have some ideas what's the cause?

Thank you!

[waclawek.jan · Accepted solution]

Can you look at it using an oscilloscope rather than a LA?

JW

[David.Fabian]

Yeah, that's it! With an oscilloscope there are no breaks inside. Thank you!

[waclawek.jan]

If resolved, please mark as Ansered (Best). Thanks.

JW