cycles_from_ns()

fl::u32 fl::detail::cycles_from_ns ( fl::u32 ns, fl::u32 hz )

constexpr

Convert nanoseconds to CPU cycles.

Parameters

ns	Number of nanoseconds
hz	CPU frequency in Hz

Returns

Number of cycles (rounded up)

Definition at line 29 of file delay.h.

                                                               {
  // Round up: cycles = ceil(ns * hz / 1e9)
  // Using: (ns * hz + 999'999'999) / 1'000'000'000
  return ((fl::u64)ns * (fl::u64)hz + 999999999UL) / 1000000000UL;
}

References FL_NOEXCEPT.

Referenced by cycles_from_ns_default().

Here is the caller graph for this function: