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CC2650: I2c in cc2650 ble stack

siva sasi
Prodigy 245 points
Part Number: CC2650


Hi team,

Since i am using oled. I have interfaced i2c with cc2650 BLE Stack in that i am getting noisy clock when i look into the oscilloscope. I don't why so can any have any idea about that ? 

  • 0
    Guru 735695 points

    If you try I2C example at , do you see correct I2C clock signal?

  • 0 in reply to YiKai Chen
    Prodigy 245 points

    Hi sir ,

    I already done the oled interfacing with task basis(without using cc2650 BLE) and also I got the ACK .

    But when I am trying with CC2650-BLE in event and task basis(Simple peripheral example code) I didn't received the ACK. So is there any latency problem in this.

  • 0 in reply to siva sasi
    TI__Guru** 101490 points

    Hi,

    Can you verify the two following points:

    - Which pins/DIO are you using for the I2C? Is there any possibility for a pin conflict between the I2C and the BLE?

    - Are you using long cables for I2C? (that could act as antennas?) Are the I2C signals altered by the RF signals or are they altered even if you are not transmitting?

    Regards,

  • 0 in reply to Clément
    TI__Guru** 101490 points

    Hi,

    Due to inactivity, I will close this thread in the next few days. After this, if you problem needs further assistance, you will still be able to open a new thread.

    If your problem is solved, please click the green button "This Resolved My Issue".

    Regards,