What's the maximum time between random numbers on the RNG peripheral?

RE: What's the maximum time between random numbers on the RNG peripheral?

run_ar — Tue, 06 Feb 2018 08:43:50 GMT

As you have measured already the time it takes to generate a value will vary as this is generated based on noise. This is especially thru when bias correction is on, which is the recommended setting if you need a uniform distribution of 0 and 1.

RE: What's the maximum time between random numbers on the RNG peripheral?

CurtisHx — Tue, 30 Jan 2018 12:52:00 GMT

I just ran a quick 'n dirty experiment on the dev kit. I toggled a GPIO inside of the RNG VALRDY interrupt and looked at it on the scope. After running for a few minutes, it looks like the max time is 35µs and min is 31µs with bias correction off (CONFIG = 0). With bias correction on, max time is 2.27ms and min time is 74µs. There's something going wrong with my code. I don't think the RNG is malfunctioning.

RE: What's the maximum time between random numbers on the RNG peripheral?

Matt — Tue, 30 Jan 2018 02:44:57 GMT

Should be less than the time to find your next date :) For my application I did not recall the time delay to be more than 1 second..but I could be wrong here.