This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

nRF52: Time from calling __WFI() to HFINT turn off?

Assuming that all peripherals that require the high frequency clock are disabled / turned off / stopped, how long does the HFINT oscillator run after calling __WFI()?

And if it's greater than 1ms or so, is there any way to shut it off faster?

Top Replies

Susheel Nuguru over 8 years ago in reply to CurtisHx +1

I understand. Like I said, i am pretty sure it should not take more than few HFCLK cycles. I got this confirmed from the hardware designer.

Parents

0 CurtisHx over 8 years ago

If HFCLK is already powered down by the time __WFI() is called, then what's the CPU running off of?
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 Susheel Nuguru over 8 years ago in reply to CurtisHx

You are very sane, i am thinking like a noodle today .. sorry for that. I am curious, of why it is important for you to know HFCLK stop time. what is the use case?
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel

Reply

0 Susheel Nuguru over 8 years ago in reply to CurtisHx

You are very sane, i am thinking like a noodle today .. sorry for that. I am curious, of why it is important for you to know HFCLK stop time. what is the use case?
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel

Children

No Data