• State Resolved
  • Locked Locked
  • Replies 8 replies
  • Subscribers 82 subscribers
  • Views 309 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

TMDSCNCD280049C: Provided Design Issues in OrCad

Skyler Bowers
Prodigy 20 points
Part Number: TMDSCNCD280049C
Other Parts Discussed in Thread: C2000WARE

Tool/software:

Hello everyone,

My company had this design produced based on the provided PCBProject files and schematics provided in the C200Ware folders. However, the control card does not work. We've done extensive testing and can't seem to find where the design fails. However, upon close examination in OrCad, it seems like the design is missing it's 5V connection. We've since repaired this and tested the design again, but it still doesn't work. 

So, my question is, if the provided PCBProject is missing a 5V connection, what else could be wrong with the design that TI provides? Can I get a proper and recent design for this part? I believe what is provided is not complete or up to date. I'd like to cross reference a complete and working design with what we have to see where the failure is.

Thank you all for your time,

Skyler

  • 0
    TI__Expert 6020 points

    Hi Skyler,

    TMDSCNCD280049C EVM is designed using altium designer tool, and is available from this C2000ware path:  C:\ti\c2000\C2000Ware_5_02_00_00\boards\controlCARDs\TMDSCNCD280049C\A.

    This EVM doesnt have OrCad version at all. May I know where did you get this project from? Is this a generated file?

    Thanks & Regards,

    Uttam

  • 0 in reply to Uttam Reddy Pailla
    Prodigy 20 points

    Yes, that's the path location I used. To view this in OrCad and export gerbers, I used OrCad's import function to convert the "MCU009B.PrjPcb"  from Altium to OrCad project.

  • 0 in reply to Skyler Bowers
    Prodigy 20 points

    Which seems to convert it okay, as seen in the image attached. However seen by the blue line, the 5V trace is missing. So I wonder if anything else is wrong with this design. I don't believe this to be the finished design that TI believes it's providing.

  • 0 in reply to Skyler Bowers
    TI__Expert 6020 points

    Can you point on schematic at what point the traces are missed?

    All our EVMs designs are thoroughly validated before going live on web. I ran the DRC on altium files again and dont see any missing traces.

    The conversion to OrCad might have missed the traces. 

    Thanks & Regards,

    Uttam

  • 0 in reply to Uttam Reddy Pailla
    Prodigy 20 points

    Well it's not necessarily on the schematic, it's on the PCB. In the picture in my previous reply, that bright blue line represents connections that need to be made. And that connection is the 5V trace. I see what you're saying though that this could be an issue created when OrCad tried to convert everything. Could you supply the up to date zip file with the project for me here? I'll look through it again and convert it. If it's incorrect again, I'll be happy blaming the issue on OrCad.

  • 0 in reply to Uttam Reddy Pailla
    Prodigy 20 points

    After some review of the PCB on the official Altium project viewer online. It appears that translation is also missing its 5V  connection. Unless this is done strictly through vias and planes. Is this the case? Perhaps its possibly my control card is missing a voltage plane as a mid layer or something.

  • 0 in reply to Skyler Bowers
    TI__Expert 6020 points

    Skyler, 

    We do use split planes for all power planes for layers (5V/3.3V/1.2V etc...). If the translation is the mistake then it should be seen on all power planes. But in your scenario its only seen at 2 connections as you mentioned?

    missing layer can be a possibility, but that should have been caught while running DRC check with OrCad tool. Was the DRC check has been done on OrCard before you fabbed the PCB?

    Regards,

    Uttam

  • 0 in reply to Uttam Reddy Pailla
    Prodigy 20 points

    It was, I'm not sure how it passed though. You know, the official viewer does change two of the layers. So I am in agreement with you that OrCad missed a layer through translation, or just assigned it incorrectly. Because I see in the Altium viewer where the 5V connections are meant to connect through a plane now. Thank you for the help identifying this.