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dave1
Visitor II
January 16, 2009
Question

uPsd3354D problem with serial port0

  • January 16, 2009
  • 2 replies
  • 735 views
Posted on January 16, 2009 at 18:25

uPsd3354D problem with serial port0

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    2 replies

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    dave1Author
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:52

    Hi,

    I have a problem with transmit on the primary serial port on this CPU.

    This is the first time I am using a uPSD3354 (have used uPSD3254).

    Using the same routines that worked on the 3254, I can send commands on the serial port, but cannot get any output on the TX pin. I have the same prob with more than one prototype. I have checked that the interrupts are occurring and the routine stuffs sbuf, but TXD0 does not change. I can issue a command to change the pin state. (I actually thought that this would not work when not in GP I/O mode)

    I have checked all the data and cannot find anything different between the 3254 and 3354 with regard to UART0.

    Can anyone help?

    Thanks

    M
    mattbarlage
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:52

    I am using UART0 with no issues. What are you using to verify data on TxD0?

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