CC2640R2F: Power domains

Hi,

Yes this is possible and already done if you are using TI drivers (the Power driver is responsible for that).

If you have a look to the PIN driver, you will see the following line:

Power_setDependency(PowerCC26XX_PERIPH_GPIO);

Hope this will help,

Regards,

Thanks for the feedback.

Maybe i wasnt clear, the question was about disabling the 3.3V meaning removing the power, and not only turning it off by SW.

Is that possible?

BR

Anders Lange

Hi again,

You should have a look to the CC26X0 TRM (especially to the “Power, Reset, and Clock Management” section). You will see all the possibilities to power down a power domain or a voltage domain.

Regards,

Hi.

I have tried, but didnt find the information. Thats the reason for writing on the forum...

BR

Anders Lange

Hi Anders,

We do not support powering down individual IO banks while the main power is still applied. 

Can you elaborate more on the use case for this request?

Regards,
Fredrik

Hi Fredrik.

The CC2640 is used in a sensor application.

The voltage needed for the sensor is 3.3V, and when the sensor isnt used, the voltage (3.3V) is turned of, the idea was to turn of the voltage to the power domains, that is connected to the sensor and that way save power.

BR

Anders Lange