Second clock source in Processor Expert (KL26z)

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Second clock source in Processor Expert (KL26z)

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Contributor I

I'm using a KL26z Freedom board and trying to use an eternal clock of 15.56MHz (I'm developing a NFC application). Now I always get an error in processor expert when i set this value "It's not possible to set the requested PLL output clock value" which I understand, because the core needs it's 48MHz. Now is there no possibility to have a second clock for the NFC application? Thanks for your help!

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Petr_H
NXP Employee
NXP Employee

Hi,

I recommend to go the PLL0 settings / PLL output in  the CPU component inspector and there press CTRL + space (or click the small yellow bulb icon) and you will get possible values.

Select 99.58 and this will allow you to select maximum core clock 47.98 MHz.

NCFissue.png

Best regards
Petr Hradsky
Processor Expert Support Team

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Petr_H
NXP Employee
NXP Employee

Hi,

I recommend to go the PLL0 settings / PLL output in  the CPU component inspector and there press CTRL + space (or click the small yellow bulb icon) and you will get possible values.

Select 99.58 and this will allow you to select maximum core clock 47.98 MHz.

NCFissue.png

Best regards
Petr Hradsky
Processor Expert Support Team

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Contributor I

This helped! Thanks a lot!

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