crankMaths.h

Go to the documentation of this file.

#ifndef CRANKMATHS_H
#define CRANKMATHS_H
 
#include "maths.h"
#include "globals.h"
 
static constexpr uint32_t MICROS_PER_DEG_1_RPM = UDIV_ROUND_CLOSEST(MICROS_PER_MIN, 360UL, uint32_t);
 
static constexpr uint16_t MAX_RPM = 18000U;
 
static constexpr uint16_t MIN_RPM = (uint16_t)UDIV_ROUND_UP(MICROS_PER_DEG_1_RPM, (uint32_t)UINT16_MAX/16UL, uint32_t);
 
static constexpr uint16_t MIN_REVOLUTION_TIME = MICROS_PER_MIN/MAX_RPM;
 
static constexpr uint32_t MAX_REVOLUTION_TIME = MICROS_PER_MIN/MIN_RPM;
 
static inline int16_t ignitionLimits(int16_t angle) {
    return nudge(0, CRANK_ANGLE_MAX_IGN-1, angle, CRANK_ANGLE_MAX_IGN);
}
 
static inline uint16_t injectorLimits(uint16_t angle)
{
    while(angle >= (uint16_t)CRANK_ANGLE_MAX_INJ ) { angle -= (uint16_t)CRANK_ANGLE_MAX_INJ; }
    return angle;
}
 
static inline uint16_t injectorLimits(int16_t angle)
{
    while(angle < 0) { angle += CRANK_ANGLE_MAX_INJ; }
    return injectorLimits((uint16_t)angle);
}
 
void setAngleConverterRevolutionTime(uint32_t revolutionTime) noexcept;
 
uint32_t angleToTime(uint16_t angle) noexcept;
 
COMPARE_TYPE angleToTimerTicks(uint16_t angle) noexcept;
 
uint16_t timeToAngle(uint32_t time) noexcept;
 
#endif