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Linux/AM3352: About UART port setting

yimin bai34
Genius 4755 points
Part Number: AM3352


Tool/software: Linux

Hi SIr 

For UART port setting:

UART 3 :

TXD - pin C18, G16 & L16 are all be used, need a GPIO to simulate TX pin.  
RXD pin - we can use pin G15.as RX

All other 5 UART ports are all being used.

We need another one UART port, need help to check if can use SW to generate one more UART port..

please advise 

BR
Yimin

  • 0
    TI__Guru**** 393215 points

    Hi,

    yimin bai34 said:
    TXD - pin C18, G16 & L16 are all be used, need a GPIO to simulate TX pin.  
    RXD pin - we can use pin G15.as RX

    This will not be possible. UART drivers depend on the hardware UART. You can possibly modify the driver, but this is not an use case supported by TI.

    yimin bai34 said:
    We need another one UART port, need help to check if can use SW to generate one more UART port..

    We do not have an example for software UART under Linux. Again, this is not an use case supported by TI.

  • 0
    TI__Guru**** 169741 points
    Hi Yimin,

    Regarding the SW UART support for AM335x, it is under development and will be available in future Processor SDK releases. Please see the following thread for more information.

    e2e.ti.com/.../781350