• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 55 subscribers
  • Views 160 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.

LP-XDS110ET: Question about launchpad connector

Cameron Wutzke
Expert 3822 points
Part Number: LP-XDS110ET
Other Parts Discussed in Thread: LP-XDS110, LP-EM-CC2340R5

Tool/software:

Hello! 

I like the LP- XDS110 and plan to copy my CC2340's launchpad header on my first round of PCBs, to continue using the debugger as I develop. 

 My question is: Is the XDS_BoardID_SCL and SDA required? I have to assume no, but maybe CCS' debugger needs it

On the LP-XDS110, it connects to the MSP432's I2C

On the launchpad, it connects to a discrete flash chip which holds the boardID. 

Ideally, I want to leave these pins as no connects on my design. Thanks! 

  • 0
    TI__Mastermind 35070 points

    Hi,

    On the LP-EM-CC2340R5, the SCL/SDA  have DNM lines to the header.

    So probably not critical to include.

    I've notified a HW expert to further comment.

    Thanks,
    Toby

  • 0
    TI__Guru**** 171254 points

    Hi, 

    As Toby has mentioned and you have suspected, these two pins are not needed for your final design. 

    These two pins are indeed connected to the small I2C memory to allow identifying the board as a LP-EM-CC2340R5 development kit. 

    Hope this helps,

    Rafael