• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 101 subscribers
  • Views 1014 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.

AM335x PIN Multiplexing of the USB PINs - GPIO usage

Franz Schmid
Intellectual 1695 points

Which USB PINs can be used for GPIO at the AM335x family. Referring to the PIN MUX Tool only USBx DRVVBUS  pins can be used for GPIO.

Please confirm!

Please refer also the Reference Manual chapter which describes the MUX capability of individual pins. 

Regards,

Franz

  • 0
    TI__Mastermind 25235 points

    Hi Franz,

    Please refer to page 46 of the datasheet. As you can see there only USB0_DRVVBUS and USB1_DRVVBUS can be muxed as GPIOs.

    Best regards,
    Miroslav


  • 0
    TI__Guru**** 393215 points
    Hi Franz,
     
    You should check Table 2-7 in the AM335X Datasheet, where all pin modes are listed. For the USB you are right, only USBx_DRVVBUS pins can be used as GPIOs. You should tke care though, if you plan to use the USB in host or OTG mode, then DRVVBUS is used by USB PHY and cannot be used as GPIO.