[GitHub] [incubator-nuttx] hartmannathan commented on pull request #5421: sched/wdog: fix adding one extra tick to any delay

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hartmannathan commented on pull request #5421:
URL: https://github.com/apache/incubator-nuttx/pull/5421#issuecomment-1030863289


   I'm late to the party but I just wanted to add that I was also confused by the + 1 tick in the past and I remember writing to ask about it. I think it might be in the old Google Group. I don't have the link handy at this time. What Greg is describing above sounds a little like a Bresenham-style algorithm. It works for drawing slanted lines on a graphic display but also works for things like fitting a time intervals that don't divide easily. In my case, it turned out that I needed a much higher resolution timer and for that I ended up using one of the chip's timer peripherals to produce an interrupt (zero-latency in my application). I recognize that that is not always an option but may be something to consider. Anyway this PR is closed so this is a moot point now.


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