Files
flix/flix/util.h
Oleg Kalachev 8418723ccc Refactor control subsystem
Add interpretControls function to convert pilot commands and mode into control targets and make control functions independent from the mode.
Add ratesExtra target for rates feed-forward; remove yawMode.
Rename controlRate to controlRates to reflect rates variable name.
Remove USER mode.
2025-08-26 01:00:56 +03:00

55 lines
1.3 KiB
C++

// Copyright (c) 2023 Oleg Kalachev <okalachev@gmail.com>
// Repository: https://github.com/okalachev/flix
// Utility functions
#pragma once
#include <math.h>
#include <soc/soc.h>
#include <soc/rtc_cntl_reg.h>
const float ONE_G = 9.80665;
float mapf(long x, long in_min, long in_max, float out_min, float out_max) {
return (float)(x - in_min) * (out_max - out_min) / (float)(in_max - in_min) + out_min;
}
float mapff(float x, float in_min, float in_max, float out_min, float out_max) {
return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}
bool invalid(float x) {
return !isfinite(x);
}
bool valid(float x) {
return isfinite(x);
}
// Wrap angle to [-PI, PI)
float wrapAngle(float angle) {
angle = fmodf(angle, 2 * PI);
if (angle > PI) {
angle -= 2 * PI;
} else if (angle < -PI) {
angle += 2 * PI;
}
return angle;
}
// Disable reset on low voltage
void disableBrownOut() {
REG_CLR_BIT(RTC_CNTL_BROWN_OUT_REG, RTC_CNTL_BROWN_OUT_ENA);
}
// Trim and split string by spaces
void splitString(String& str, String& token0, String& token1, String& token2) {
str.trim();
char chars[str.length() + 1];
str.toCharArray(chars, str.length() + 1);
token0 = strtok(chars, " ");
token1 = strtok(NULL, " "); // String(NULL) creates empty string
token2 = strtok(NULL, "");
}