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Forum Configuring LPUART on MCXN236 - A frustrating experience
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  • uart
Related

Configuring LPUART on MCXN236 - A frustrating experience

yamanoorsai
yamanoorsai 3 days ago

I used the SDK examples to configure LPUART with my MCXN236 project. I think there is a bug in Flexcomm initialization inside LPUART_Init(). LPUART_Init() is auto generated by the SDK. 

I was not able to get LPUART working when Flexcomm was initialized as follows inside LPUART_Init():

status = LP_FLEXCOMM_Init(LPUART_GetInstance(base), LP_FLEXCOMM_PERIPH_LPUART);

 

I was able to get it working when I configured it as follows:

status = LP_FLEXCOMM_Init(LPUART_GetInstance(base), LP_FLEXCOMM_PERIPH_LPI2CAndLPUART);

What might be the reason for this?

 

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  • skruglewicz
    skruglewicz 1 day ago +1
    hello yamanoorsai Thanks for this valuable post! I’m also having some trouble with the SDK examples, as I mentioned in my own forum post. For reference, I’m currently running these NXP toolchains:…
  • balajivan1995
    balajivan1995 20 hours ago +1
    When I hover over the MicroE extension Rx and Tx pins, I get this information "LPUART+LPI2C RXD" & "LPUART+LPI2C TXD" You are correct, those Rx and Tx works only if "periph" parameter is set as " LP_FLEXCOMM_PERIPH_LPI2CAndLPUART…
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  • michaelkellett
    michaelkellett 2 days ago

    There are a great many low power UARTs in the world. 

    Why don't you provide some context (like the processor you are using and the toolchain) and then it might be possible for others to assist.

    MK

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  • yamanoorsai
    yamanoorsai 2 days ago in reply to michaelkellett

    This is the Smart spaces design challenge. I think pretty much everyone is working with the same SDK but I updated the MCU information. 

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  • yamanoorsai
    yamanoorsai 2 days ago in reply to michaelkellett

    This is the Smart spaces design challenge. I think pretty much everyone is working with the same SDK but I updated the MCU information. 

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