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Store current time in float variable

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This commit is contained in:
Oleg Kalachev
2023-05-26 16:23:30 +03:00
parent c5323f5723
commit c1aa0d9869
5 changed files with 31 additions and 35 deletions
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37
flix/time.ino
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@@ -1,28 +1,25 @@
// Copyright (c) 2023 Oleg Kalachev <okalachev@gmail.com>
// Repository: https://github.com/okalachev/flix
const uint32_t MS = 1000;
const uint32_t S = 1000000;
#define FREQ_WINDOW 1
static uint32_t stepsPerSecondCurrent;
static uint32_t stepsPerSecondCurrentLast;
void step()
{
float now = micros() / 1000000.0;
dt = now - t; // dt is NAN on first step
t = now;
void step() {
steps++;
auto time = micros();
computeLoopFreq();
}
if (stepTime == 0) { // first step
stepTime = time;
}
dt = (time - stepTime) / 1000000.0;
stepTime = time;
// compute steps per seconds
stepsPerSecondCurrent++;
if (time - stepsPerSecondCurrentLast >= 1000000) {
stepsPerSecond = stepsPerSecondCurrent;
stepsPerSecondCurrent = 0;
stepsPerSecondCurrentLast = time;
void computeLoopFreq()
{
static float windowStart = 0;
static uint32_t freq = 0;
freq++;
if (t - windowStart >= FREQ_WINDOW) {
loopFreq = freq;
windowStart = t;
freq = 0;
}
}