• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 82 subscribers
  • Views 634 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMDSCNCD28388D: SCI A uart loopback demo

inno
Expert 1700 points
Part Number: TMDSCNCD28388D
Other Parts Discussed in Thread: C2000WARE, TMDSHSECDOCK,

Hi,

I am trying to run the SCI A loopback demo : I could not figure out where is the SCI A uart connector on the control card ?

  • 0
    TI__Mastermind 42195 points

    Inno,

    The pinout is defined in C2000Ware. The document below describes where each GPIO connects on a TMDSHSECDOCK.

    "C:\ti\c2000\C2000Ware_3_03_00_00\boards\controlCARDs\TMDSCNCD28388D\Rev.B\TMDSCNCD2838x_RevB_180cCARD_pinout.pdf" 

    Regards,
    Cody 

  • 0 in reply to Cody Watkins
    Expert 1700 points

    that's simple : I am NOT referring to SCI A , and not dat sheet and/or board pinout in general :

    I'll ask again in a different approach as far as I could tell I can have on J1:A either SCI A or JTAG. right ? If so , How can I run the SCI A example in the C2000 ware (ram build configuration) - I need the JTAG to upload and run it ? or what am I not considering ?

  • 0 in reply to inno
    TI__Mastermind 42195 points

    Inno,

    There are many connections made on the controlCARD. You have highlighted one option which, depending on the selection of J1:A, can allow SCIA though GPIOs 28 and 29 to be connected to the secondary channel of the the embedded XDS100v2. This allows a path for a PC terminal application to communicate with the device over UART.

    This is not the only SCIx or even the only SCIA connection made on the device. If you are attempting a loopback demo you probably want to, well, loopback the signal externally to the device. That will be quite hard to do using the traces which are ran to J1:A. This is why I suggested you look at the pinout document, which describes the external connections of the TMDSCNCD28388D device when attached to a TMDSHSECDOCK. The TMDSHSECDOCK has a standard 100mil header which is intended to provide access to device pins through the controlCARD's HSEC interface. I would suggest you utilize this interface for looping back your signal.

    Please note that some functions are called out in standard locations, for example SCIA has a standard location in the controlCARD HSEC standard. This is not the only place where SCIA is brought out. Please open up the Datasheet and evaluate which GPIOs you would like to use to bring out the SCIA signals. I recommend GPIO's 28 and 29, you'll see them in the document which I referenced in my previous post.

    Regards,
    Cody