How to control power switch by programming control on nFR52840?

[lgs]

Hi, I want to simulate the intermittent environment on nFR52850DK.  How can I control the power supplement by programming? I mean I want to control when to shut down and when to start the board.

[Jared]

Hi,

The shut down part is pretty straightforward. However, starting the board by controlling the supply from the IC is much more complex. Does it have to be from the IC itself? Can't you use a physical switch?

regards

Jared 

[lgs]

Actually, I have to control the power switch by programming. You know, I simulate the intermittent environment. The time between power off and power on is very short and unpredictably.  So, my question is can I control the power switch by programming on interface MCU on nFR52840 DK?

[Jared]

Programming the interface chip is not something that we support nor do we recommend it. Better to use an external MCU that is not apart of the DK in that case. 

[lgs]

Thanks. Do you have a product that supports BLE Mesh Network with a FRAM memory rather than flash memories?

I check the document about mesh network it says " As the Bluetooth mesh stack uses the flash to store state across power failure, the device flash will eventually start failing, resulting in unexpected behaviour in the Bluetooth mesh stack".

[Jared]

FRAM instead of flash? Not sure if I understand you correctly. Either way MCUs that supports mesh is listed here.