• State
  • Locked Locked
  • Replies 3 replies
  • Subscribers 53 subscribers
  • Views 1497 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.

CC2541 low power mode

shiping wang
Prodigy 180 points

Other Parts Discussed in Thread: CC2541

Hi,

I have a question here, how could i make sure the cc2541 chip is in the low power mode?

I am using cc2541's BLE1.4.0 "heartrate project" to do the test.

If the software run into the function below, does it mean the chip is in power mode? Then should the current consumption be below 1mA?

But my power supply shows my board is still consuming around 20mA.

Thanks,

Shiping

  • 0
    TI__Guru** 105180 points
    Hello,

    I recommend looking at the measuring current consumption app note, which is on the TI BLE Wiki, CC254x section, "Application Notes" link.
    Note that you cannot have the CC debugger attached during the measurement. make sure to disconnect any LCD displays as well.

    Best wishes
  • 0
    Guru 735695 points
    If you define POWER_SAVING in your project compile option, BLE Stack would make CC2541 enter sleeping mode when there is no task to be handled in task queue and power consumption should be much less than 1mA.
  • 0 in reply to JXS
    Prodigy 180 points

    Hi JXS,

    Thanks for your reply, except observing the current consumption, is there any way to check whether my chip is running in low power mode?

    I tried to check the power control register but it seems once the chip enter sleep mode, ccdebugger just doesn't show right value of PCON.IDLE bit. So PCON.IDLE bit 's value is always 0.

    Thanks,

    Shiping