Peak power, S132 SoftDevice, concurrent CPU + radio?

[samsonc]

Hi,

I've seen the results of the power profiler, but I'd like to confirm this - with no other concurrent user CPU processes (standby/sleep), is the S132 softdevice guaranteed to never have both the radio (RX or TX) on and CPU running? If they are sometimes concurrently on, what's the worst case scenario overlap time?

I understand that there are mechanisms through which my software can be notified of upcoming radio events, and I'm planning on ensuring my software (and external hardware) is in standby before any expected radio events.

Of course, this is for a power-constrained application.

Thanks!

[Simonr]

Hi

I see, sorry about the misunderstanding! No, there are no guarantees at all that the SoftDevice will keep the CPU disabled while the radio is active. It is entirely up to your application when the CPU is running, so I can't give you any numbers on how long the CPU and the radio may be running concurrently.

You can read more on the SoftDevice here, and on the CPU in the product specification.

Best regards,

Simon