• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 98 subscribers
  • Views 162 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.

TDA4VEN-Q1: two independent LVDS outputs?

Robert Finger
Genius 17587 points
Part Number: TDA4VEN-Q1
Other Parts Discussed in Thread: AM62P, AM67

Tool/software:

Team, 

Is it possible to drive two LVDS displays with independent content on TDA4VEN? Same question is valid for AM62P, TRM chapter is identical!

In the TRM I find contradictory info. 

Chapter 12.9.1.1. suggests using DSS0 for OLDI0 and DSS1 for OLDI1

https://www.ti.com/document-viewer/lit/html/SPRUJB3B#GUID-DF95798A-CAE5-47E3-B8D9-154A41AEFA08/TITLE-SPRUID7EXT_VAYU_DSS_00000

But in "12.9.1.2 DSS Environment" it looks like both OLDI channels are driven from DSS0 only, via Video Port 1. 

https://www.ti.com/document-viewer/lit/html/SPRUJB3B#GUID-2DA202B4-3C64-44F1-BC1E-F718E742360B/TITLE-SPRUID7EXT_VAYU_DSS_00001

Please help to clarify what's correct.

Thanks,
  Robert

  • +1
    TI__Guru 53323 points

    Hi Robert, 

    Yes, I looked into a bit more and TDA4VEN/J722S/AM67 has 2xDSS which each have 2 video pipelines. 2 independent OLDI should be possible, but there is only one OLDI port on the EVM board. We would require an OLDI splitter to validate this feature along with single link panels.

    Regards,

    Takuma