Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

  • State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 30 subscribers
  • Views 68 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.

TAS2780EVM: I2C Address selection not working

Leonardo Martinez Hornak
Prodigy 10 points
Part Number: TAS2780EVM

Tool/software:

Hi,

I am trying out the TAS2780EVM with my Windows computer using PPC3. Well, I decided to sniff the i2c communication to see how it works. The odd thing I found is that it works using address 0x3E independently of ADDR SEL jumper J20. This is both from Device Control, register map and Direct I2C typing the following command:

"w 7D 00 01 #Page 0x01"

Does this make sense?

It contradicts the datasheet.

Thanks!

  • +1
    TI__Mastermind 19485 points

    HI Leonardo,

    the address selection is only polled on power on of the device. any change to the address of the EVM without power cycling won't have an effect. can you confirm the board is being power cycled after the address is changed?

    Regards,
    Arthur