CubeMX PCC doesn't allow me to set clock, reason ?

[ATirl]

Below images show a PCC step configuration window and my clock tree configuration. As seen i can not change info under clock tab of PCC. Anybody know the reason ?

[Amel NASRI]

Hello,

Please note that if you select "Scale3-Low", you will be able to enter the value of the frequency in "User Choice" field. In this case, you need to select first "User-defined" as CPU Frequency.

-Amel

[ATirl]

Hello Amel,

Thanks for your time ! In the case i select "Scale3-Low", CPU freq is selectable but i still cannot specify Clock Source frequency. It is fixed to 4 MHz. Doesn't Clock Source frequency affect power consumption ? I plan to use 20 MHz crystal by the way.

[Nawres GHARBI]

Hi,

The PCC clock is independent form your project configuration.

We are working on synchronizing this tool and it will be available in a next release with all clock configurations