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@ -56,52 +56,50 @@ uint8_t ServoCount = 0;
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#define SERVO_OVERFLOW ((uint16_t)round((double)TAU_CYC / SERVO_PRESCALER))
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// Unit conversions
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#define US_TO_COMPARE(us) ((uint16_t)map((us), 0, TAU_USEC, 0, SERVO_OVERFLOW))
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#define COMPARE_TO_US(c) ((uint32_t)map((c), 0, SERVO_OVERFLOW, 0, TAU_USEC))
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#define ANGLE_TO_US(a) ((uint16_t)(map((a), this->minAngle, this->maxAngle, \
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SERVO_DEFAULT_MIN_PW, SERVO_DEFAULT_MAX_PW)))
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#define US_TO_ANGLE(us) ((int16_t)(map((us), SERVO_DEFAULT_MIN_PW, SERVO_DEFAULT_MAX_PW, \
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this->minAngle, this->maxAngle)))
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void libServo::servoWrite(uint8_t pin, uint16_t duty_cycle) {
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#define US_TO_COMPARE(us) uint16_t(map((us), 0, TAU_USEC, 0, SERVO_OVERFLOW))
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#define COMPARE_TO_US(c) uint32_t(map((c), 0, SERVO_OVERFLOW, 0, TAU_USEC))
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#define ANGLE_TO_US(a) uint16_t(map((a), minAngle, maxAngle, SERVO_DEFAULT_MIN_PW, SERVO_DEFAULT_MAX_PW))
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#define US_TO_ANGLE(us) int16_t(map((us), SERVO_DEFAULT_MIN_PW, SERVO_DEFAULT_MAX_PW, minAngle, maxAngle))
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void libServo::servoWrite(uint8_t inPin, uint16_t duty_cycle) {
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#ifdef SERVO0_TIMER_NUM
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if (this->servoIndex == 0) {
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this->pwmSetDuty(duty_cycle);
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if (servoIndex == 0) {
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pwmSetDuty(duty_cycle);
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return;
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}
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#endif
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timer_dev *tdev = PIN_MAP[pin].timer_device;
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uint8_t tchan = PIN_MAP[pin].timer_channel;
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timer_dev *tdev = PIN_MAP[inPin].timer_device;
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uint8_t tchan = PIN_MAP[inPin].timer_channel;
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if (tdev) timer_set_compare(tdev, tchan, duty_cycle);
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}
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libServo::libServo() {
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this->servoIndex = ServoCount < MAX_SERVOS ? ServoCount++ : INVALID_SERVO;
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servoIndex = ServoCount < MAX_SERVOS ? ServoCount++ : INVALID_SERVO;
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}
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bool libServo::attach(const int32_t pin, const int32_t minAngle, const int32_t maxAngle) {
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if (this->servoIndex >= MAX_SERVOS) return false;
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if (pin >= BOARD_NR_GPIO_PINS) return false;
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bool libServo::attach(const int32_t inPin, const int32_t inMinAngle, const int32_t inMaxAngle) {
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if (servoIndex >= MAX_SERVOS) return false;
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if (inPin >= BOARD_NR_GPIO_PINS) return false;
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this->minAngle = minAngle;
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this->maxAngle = maxAngle;
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this->angle = -1;
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minAngle = inMinAngle;
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maxAngle = inMaxAngle;
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angle = -1;
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#ifdef SERVO0_TIMER_NUM
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if (this->servoIndex == 0 && this->setupSoftPWM(pin)) {
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this->pin = pin; // set attached()
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if (servoIndex == 0 && setupSoftPWM(inPin)) {
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pin = inPin; // set attached()
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return true;
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}
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#endif
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if (!PWM_PIN(pin)) return false;
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if (!PWM_PIN(inPin)) return false;
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timer_dev *tdev = PIN_MAP[pin].timer_device;
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//uint8_t tchan = PIN_MAP[pin].timer_channel;
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timer_dev *tdev = PIN_MAP[inPin].timer_device;
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//uint8_t tchan = PIN_MAP[inPin].timer_channel;
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SET_PWM(pin);
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servoWrite(pin, 0);
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SET_PWM(inPin);
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servoWrite(inPin, 0);
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timer_pause(tdev);
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timer_set_prescaler(tdev, SERVO_PRESCALER - 1); // prescaler is 1-based
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@ -109,25 +107,24 @@ bool libServo::attach(const int32_t pin, const int32_t minAngle, const int32_t m
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timer_generate_update(tdev);
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timer_resume(tdev);
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this->pin = pin; // set attached()
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pin = inPin; // set attached()
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return true;
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}
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bool libServo::detach() {
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if (!this->attached()) return false;
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this->angle = -1;
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servoWrite(this->pin, 0);
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if (!attached()) return false;
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angle = -1;
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servoWrite(pin, 0);
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return true;
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}
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int32_t libServo::read() const {
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if (this->attached()) {
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if (attached()) {
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#ifdef SERVO0_TIMER_NUM
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if (this->servoIndex == 0) return this->angle;
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if (servoIndex == 0) return angle;
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#endif
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timer_dev *tdev = PIN_MAP[this->pin].timer_device;
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uint8_t tchan = PIN_MAP[this->pin].timer_channel;
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timer_dev *tdev = PIN_MAP[pin].timer_device;
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uint8_t tchan = PIN_MAP[pin].timer_channel;
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return US_TO_ANGLE(COMPARE_TO_US(timer_get_compare(tdev, tchan)));
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}
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return 0;
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@ -137,12 +134,12 @@ void libServo::move(const int32_t value) {
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constexpr uint16_t servo_delay[] = SERVO_DELAY;
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static_assert(COUNT(servo_delay) == NUM_SERVOS, "SERVO_DELAY must be an array NUM_SERVOS long.");
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if (this->attached()) {
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this->angle = constrain(value, this->minAngle, this->maxAngle);
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servoWrite(this->pin, US_TO_COMPARE(ANGLE_TO_US(this->angle)));
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safe_delay(servo_delay[this->servoIndex]);
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if (attached()) {
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angle = constrain(value, minAngle, maxAngle);
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servoWrite(pin, US_TO_COMPARE(ANGLE_TO_US(angle)));
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safe_delay(servo_delay[servoIndex]);
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#if ENABLED(DEACTIVATE_SERVOS_AFTER_MOVE)
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this->detach();
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detach();
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#endif
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}
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}
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@ -169,13 +166,13 @@ void libServo::move(const int32_t value) {
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}
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}
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bool libServo::setupSoftPWM(const int32_t pin) {
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bool libServo::setupSoftPWM(const int32_t inPin) {
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timer_dev *tdev = get_timer_dev(SERVO0_TIMER_NUM);
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if (!tdev) return false;
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#ifdef SERVO0_PWM_OD
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OUT_WRITE_OD(pin, 1);
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OUT_WRITE_OD(inPin, 1);
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#else
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OUT_WRITE(pin, 0);
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OUT_WRITE(inPin, 0);
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#endif
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timer_pause(tdev);
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@ -206,9 +203,9 @@ void libServo::move(const int32_t value) {
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timer_disable_irq(tdev, 1);
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timer_disable_irq(tdev, 2);
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#ifdef SERVO0_PWM_OD
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OUT_WRITE_OD(this->pin, 1); // off
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OUT_WRITE_OD(pin, 1); // off
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#else
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OUT_WRITE(this->pin, 0);
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OUT_WRITE(pin, 0);
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#endif
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}
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}
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@ -221,7 +218,7 @@ void libServo::move(const int32_t value) {
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#else
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bool libServo::setupSoftPWM(const int32_t pin) { return false; }
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bool libServo::setupSoftPWM(const int32_t inPin) { return false; }
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void libServo::pwmSetDuty(const uint16_t duty_cycle) {}
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void libServo::pauseSoftPWM() {}
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