• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 54 subscribers
  • Views 738 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.

CC2530 and SE2431L P1_0 issue

Natallia Holubeva1
Expert 6550 points


Hello,

Do you know if P1_0 is redefined anywhere in the code and set to tristate?  Currently my customer has  P1_0 set as the output and pulled low which it is supposed to be. But he has his ANT_SEL working incorrectly and selecting
Antenna 2 instead of Antenna 1.

Out GPIO usage for the SEL2431 is exactly as the reference design (P1_0 for the antenna select) and we are noticing an interesting issue with this GPIO.  When we measure it with a meter or a scope we see this bit is at 0V but the Skyworks is incorrectly sending the RF out the Antenna 2 port!  If we physically pull this GPIO to 0V the Skyworks will correctly send the RF out the Antenna 1 port.

Thank you!!!

 

  • 0
    TI__Expert 3050 points

    Hi Natallia,

    In order to check the code regarding your query, we must know which code are you using. Please include the installer version and the specific project, as well as any change you made to the original project, including all changes to the defined flags etc.

    Best regards,

    OD