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

ATirl · ‎2018-09-10

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 · ‎2018-10-08

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

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ATirl · ‎2018-10-09

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 · ‎2018-10-25

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