topic Re: fsl_uart PEx component can't select UART0 (KL25Z) in Kinetis Design Studio

fsl_uart PEx component can't select UART0 (KL25Z)

mr_max — Wed, 16 Mar 2016 07:48:09 GMT

Hello,

I would like to use UART0 over the FRDM-KL25Z with KSDK (v1.3.0) and PEx but when I added fsl_uart component, it seem that UART0 is not in Device selection

I already use UART1 and UART2 for others tasks.

Also, I properly configured UART0 pin with PinSetting PEx component.

Maybe I could use UART0 directly with KSDK HAL methods but the question is :

Why can't I use UART0 over fsl_uart PEx component ?

Re: fsl_uart PEx component can't select UART0 (KL25Z)

Alice_Yang — Wed, 16 Mar 2016 08:06:00 GMT

Hello Maxime,

For the UART0 can also worked on Low power mode , for example stop mode , wait mode ,

so in the sdk+pe lib, make one PE component for itself "fsl_lpsci", if you want use UART0,

please add this component .

Hope it helps
Have a great day,
Alice Yang

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Re: fsl_uart PEx component can't select UART0 (KL25Z)

mr_max — Wed, 16 Mar 2016 09:10:57 GMT

Ok, I didn't see it. I tried and UART0 is rolling fine now. :smileycheck:

Thank you Alice.

And by the way, for anyone arrived here with same question, this post explain why fsl_uart can't use UART0

UART module 0 from kl25z128m4 is missing in KSDK + PE?

Carlos_Mendoza answered (21-août-2015) :

" ... This is because the UART modules are supported by different HAL/drivers, the UART0 module is supported by the LPSCI HAL/driver and the UART1 and UART2 modules are supported by UART HAL/driver ... "

Re: fsl_uart PEx component can't select UART0 (KL25Z)

Alice_Yang — Thu, 17 Mar 2016 01:54:06 GMT

Hello ,

Yes, as to the UART0 can work in low power mode , while UART1 and UART2 can not ,

so the driver is different .

Have a great day,
Alice Yang