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SPC58xxx - How to change the frequency of external oscillator in SPC5 Studio Clock Tree editor?

SKara.7
Associate II

Hi,

In our project, we are using a 20Mhz external crystal oscillator. The default frequency of external oscialltor in SPC5 Studio CLock Tree editor is 40Mhz. How will I change it to 20Mhz? Please see the picture below.

0693W00000JMD9GQAX.png 

Br,

Sreejith

1 ACCEPTED SOLUTION

Accepted Solutions
ODOUV.1
ST Employee

Hello,

click on Clock Component:

0693W00000JMEOCQA5.png 

then on oscillator setting in outline:

0693W00000JMEOqQAP.pngYou will reach the oscillator settings in the main window:

0693W00000JMEPZQA5.png 

Then change it to 20 MHz and you will have to adapt all your clock tree using reference manual according to your new external clock.

Best Regards,

-Olivier

View solution in original post

4 REPLIES 4
ODOUV.1
ST Employee

Hello,

click on Clock Component:

0693W00000JMEOCQA5.png 

then on oscillator setting in outline:

0693W00000JMEOqQAP.pngYou will reach the oscillator settings in the main window:

0693W00000JMEPZQA5.png 

Then change it to 20 MHz and you will have to adapt all your clock tree using reference manual according to your new external clock.

Best Regards,

-Olivier

ODOUV.1
ST Employee

Hello,

did it work as you expected ?

Best Regards,

-Olivier

SKara.7
Associate II

Hi Olivier,

I am successful in changing the external clock value as you suggested. But, I am running into trouble with the clock tree configuration.

Best regards,

Sreejith

ODOUV.1
ST Employee

Thank you,

then would you please tag as "best answer" my answer to this topic.

And enter a new topic for your new issue/question.

Best Regards,

-Olivier