How to use internal clock on STM32G070CBT6

[FLM.1]

Hi,

I'm going to use STM32G070CBT6-LQFP48 MCU in my project.

I need to use the INTERNAL CLOCK.

Is there any application that explains how to do it or how to configure the dedicated pins?

Thanks in advance for your support.Fab

[TDK]

Code generated from STM32CubeMX does a good job of initializing the clock based on your settings. I'd recommend starting with that.

The internal clock is in use after reset.

[FLM.1]

Thanks for your answer. But i mean the hardware configuration of the internal clock pins. Sorry i didn't specify it before

[berendi]

The internal clocks are, well, internal, so they don't have any pins.

Do you mean using the internal real-time clock with an external crystal for accuracy?

[FLM.1]

Sorry again, i have expressed badly my question.

i meant if i use the internal clock, how should be configurated the external clock pins (PF0-OSC_IN; PF1-OSC_OUT;PC14-OSC32_IN;PC15-OSC32_OUT)?

should i let them floating or i need to configure them with pull down network or put them to ground?

Thanks

[berendi · Accepted solution]

You can configure them any way you like. They can be used as GPIO inputs or outputs, or be not connected at all.

They can only sink/source a limited amount of current, check the datasheet if you want to use them as outputs.