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AM6442: UART ISSUE

Radhika Pradeep
Prodigy 80 points

Part Number: AM6442

Hi ,

We have an am6442 board and our uart0 console is working fine .

We have main uart 3 enabled (PIN K18,K19) in the hardware and enabled in the device tree.

When we connect the two COM ports and try to send data from one to other , we cannot see any data.

Could you please suggest any method to resolve this issue as soon as possible?

It is very critical issue.Any help is appreciated.

Thanks and Regards,

Radhika

  • 0
    TI__Guru**** 180446 points

    Hi Radhika,

    Do you use AM64x Processor SDK for Linux? Which version?

    I am not sure if it is a good idea to connect UART3 to UART0 port, since UART0 by default is the Linux console, any data TX/RX to/from UART0 might interfere with Linux.

    Do you observe data on UART3 TX pin on a scope if you send data on UART3?

    Please provide the device tree change for enabling UART3. 

  • 0 in reply to Bin Liu
    Prodigy 80 points

    Hi Bin,

    Thanks for your reply.Changing the dts file to uart2 somehow resolved our issue.

    Thanks and Regards,

    Radhika