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SKara.7
Associate III
January 17, 2022
Solved

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

  • January 17, 2022
  • 4 replies
  • 1123 views

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

    This topic has been closed for replies.
    Best answer by ODOUV.1

    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

    4 replies

    ODOUV.1
    ODOUV.1Best answer
    ST Employee
    January 17, 2022

    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
    January 28, 2022

    Hello,

    did it work as you expected ?

    Best Regards,

    -Olivier

    SKara.7
    SKara.7Author
    Associate III
    January 28, 2022

    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
    January 28, 2022

    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