ardupilot/ArduPlane/motor_test.cpp

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#include "Plane.h"
/*
mavlink motor test - implements the MAV_CMD_DO_MOTOR_TEST mavlink
command so that the quadplane pilot can test an
individual motor to ensure proper wiring, rotation.
*/
// motor test definitions
#define MOTOR_TEST_PWM_MIN 800 // min pwm value accepted by the test
#define MOTOR_TEST_PWM_MAX 2200 // max pwm value accepted by the test
#define MOTOR_TEST_TIMEOUT_MS_MAX 30000 // max timeout is 30 seconds
// motor_test_output - checks for timeout and sends updates to motors objects
void QuadPlane::motor_test_output()
{
// exit immediately if the motor test is not running
if (!motor_test.running) {
return;
}
// check for test timeout
uint32_t now = AP_HAL::millis();
if ((now - motor_test.start_ms) >= motor_test.timeout_ms) {
if (motor_test.motor_count > 1) {
if (now - motor_test.start_ms < motor_test.timeout_ms*1.5) {
// output zero for 0.5s
motors->output_min();
} else {
// move onto next motor
motor_test.seq++;
motor_test.motor_count--;
motor_test.start_ms = now;
}
return;
}
// stop motor test
motor_test_stop();
return;
}
int16_t pwm = 0; // pwm that will be output to the motors
// calculate pwm based on throttle type
switch (motor_test.throttle_type) {
case MOTOR_TEST_THROTTLE_PERCENT:
// sanity check motor_test.throttle value
if (motor_test.throttle_value <= 100) {
pwm = thr_min_pwm + (thr_max_pwm - thr_min_pwm) * (float)motor_test.throttle_value*0.01f;
}
break;
case MOTOR_TEST_THROTTLE_PWM:
pwm = motor_test.throttle_value;
break;
case MOTOR_TEST_THROTTLE_PILOT:
pwm = thr_min_pwm + (thr_max_pwm - thr_min_pwm) * (float)plane.channel_throttle->get_control_in()*0.01f;
break;
default:
motor_test_stop();
return;
}
// sanity check throttle values
if (pwm >= MOTOR_TEST_PWM_MIN && pwm <= MOTOR_TEST_PWM_MAX ) {
// turn on motor to specified pwm vlaue
motors->output_test_seq(motor_test.seq, pwm);
} else {
motor_test_stop();
}
}
// mavlink_motor_test_start - start motor test - spin a single motor at a specified pwm
// returns MAV_RESULT_ACCEPTED on success, MAV_RESULT_FAILED on failure
MAV_RESULT QuadPlane::mavlink_motor_test_start(mavlink_channel_t chan, uint8_t motor_seq, uint8_t throttle_type,
uint16_t throttle_value, float timeout_sec, uint8_t motor_count)
{
if (motors->armed()) {
gcs().send_text(MAV_SEVERITY_INFO, "Must be disarmed for motor test");
return MAV_RESULT_FAILED;
}
// if test has not started try to start it
if (!motor_test.running) {
// start test
motor_test.running = true;
// enable and arm motors
set_armed(true);
// turn on notify leds
AP_Notify::flags.esc_calibration = true;
}
// set timeout
motor_test.start_ms = AP_HAL::millis();
motor_test.timeout_ms = MIN(timeout_sec * 1000, MOTOR_TEST_TIMEOUT_MS_MAX);
// store required output
motor_test.seq = motor_seq;
motor_test.throttle_type = throttle_type;
motor_test.throttle_value = throttle_value;
motor_test.motor_count = MIN(motor_count, 8);
// return success
return MAV_RESULT_ACCEPTED;
}
// motor_test_stop - stops the motor test
void QuadPlane::motor_test_stop()
{
// exit immediately if the test is not running
if (!motor_test.running) {
return;
}
// flag test is complete
motor_test.running = false;
// disarm motors
set_armed(false);
// reset timeout
motor_test.start_ms = 0;
motor_test.timeout_ms = 0;
// turn off notify leds
AP_Notify::flags.esc_calibration = false;
}