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anti desync depricated // Replaced by motor_accel_limit

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This commit is contained in:
borisbstyle 2016-07-17 21:35:04 +02:00
parent 2d6e0da773
commit 9c50ed8769
5 changed files with 29 additions and 19 deletions
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2
src/main/config/config.c
View file

@ -278,7 +278,7 @@ void resetEscAndServoConfig(escAndServoConfig_t *escAndServoConfig)
#endif
escAndServoConfig->mincommand = 1000;
escAndServoConfig->servoCenterPulse = 1500;
escAndServoConfig->escDesyncProtection = 0;
escAndServoConfig->accelerationLimitPercent = 15;
}
void resetFlight3DConfig(flight3DConfig_t *flight3DConfig)

38
src/main/flight/mixer.c
View file

@ -830,17 +830,40 @@ void mixTable(void)
rollPitchYawMix[i] = qMultiply(mixReduction,rollPitchYawMix[i]);
}
// Get the maximum correction by setting offset to center
if (!escAndServoConfig->escDesyncProtection) throttleMin = throttleMax = throttleMin + (throttleRange / 2);
throttleMin = throttleMax = throttleMin + (throttleRange / 2);
} else {
throttleMin = throttleMin + (rollPitchYawMixRange / 2);
throttleMax = throttleMax - (rollPitchYawMixRange / 2);
}
// Keep track for motor update timing
float motorDtms;
if (escAndServoConfig->accelerationLimitPercent) {
static uint32_t previousMotorTime;
uint32_t currentMotorTime = micros();
motorDtms = (float) (currentMotorTime - previousMotorTime) / 1000.0f;
previousMotorTime = currentMotorTime;
}
// Now add in the desired throttle, but keep in a range that doesn't clip adjusted
// roll/pitch/yaw. This could move throttle down, but also up for those low throttle flips.
for (i = 0; i < motorCount; i++) {
motor[i] = rollPitchYawMix[i] + constrain(throttle * currentMixer[i].throttle, throttleMin, throttleMax);
// Accel limit. Prevent PID controller to output huge ramps to the motors. Only limiting acceleration.
if (escAndServoConfig->accelerationLimitPercent) {
static int16_t lastFilteredMotor[MAX_SUPPORTED_MOTORS];
// acceleration limit
float delta = motor[i] - lastFilteredMotor[i];
const float maxDeltaPerMs = throttleRange * ((float)escAndServoConfig->accelerationLimitPercent / 100.0f);
float maxDelta = maxDeltaPerMs * motorDtms;
if (delta > maxDelta) { // accelerating too hard
motor[i] = lastFilteredMotor[i] + maxDelta;
}
lastFilteredMotor[i] = motor[i];
}
if (isFailsafeActive) {
motor[i] = constrain(motor[i], escAndServoConfig->mincommand, escAndServoConfig->maxthrottle);
} else if (feature(FEATURE_3D)) {
@ -859,19 +882,6 @@ void mixTable(void)
motor[i] = escAndServoConfig->mincommand;
}
}
// Experimental Code. Anti Desync feature for ESC's
if (escAndServoConfig->escDesyncProtection) {
const int16_t maxThrottleStep = constrain(escAndServoConfig->escDesyncProtection / (1000 / targetPidLooptime), 5, 10000);
// Only makes sense when it's within the range
if (maxThrottleStep < throttleRange) {
static int16_t motorPrevious[MAX_SUPPORTED_MOTORS];
motor[i] = constrain(motor[i], motorPrevious[i] - maxThrottleStep, motorPrevious[i] + maxThrottleStep);
motorPrevious[i] = motor[i];
}
}
}
// Disarmed mode

2
src/main/io/escservo.h
View file

@ -24,5 +24,5 @@ typedef struct escAndServoConfig_s {
uint16_t maxthrottle; // This is the maximum value for the ESCs at full power this value can be increased up to 2000
uint16_t mincommand; // This is the value for the ESCs when they are not armed. In some cases, this value must be lowered down to 900 for some specific ESCs
uint16_t servoCenterPulse; // This is the value for servos when they should be in the middle. e.g. 1500.
uint16_t escDesyncProtection; // Value that a motor is allowed to increase or decrease in a period of 1ms
uint16_t accelerationLimitPercent; // Percentage that motor is allowed to increase or decrease in a period of 1ms
} escAndServoConfig_t;

2
src/main/io/serial_cli.c
View file

@ -601,7 +601,7 @@ const clivalue_t valueTable[] = {
{ "min_throttle", VAR_UINT16 | MASTER_VALUE, &masterConfig.escAndServoConfig.minthrottle, .config.minmax = { PWM_RANGE_ZERO, PWM_RANGE_MAX } },
{ "max_throttle", VAR_UINT16 | MASTER_VALUE, &masterConfig.escAndServoConfig.maxthrottle, .config.minmax = { PWM_RANGE_ZERO, PWM_RANGE_MAX } },
{ "min_command", VAR_UINT16 | MASTER_VALUE, &masterConfig.escAndServoConfig.mincommand, .config.minmax = { PWM_RANGE_ZERO, PWM_RANGE_MAX } },
{ "anti_desync_power_step", VAR_UINT16 | MASTER_VALUE, &masterConfig.escAndServoConfig.escDesyncProtection, .config.minmax = { 0, 10000 } },
{ "motor_accel_limit_percent", VAR_UINT16 | MASTER_VALUE, &masterConfig.escAndServoConfig.accelerationLimitPercent, .config.minmax = { 0, 10000 } },
{ "servo_center_pulse", VAR_UINT16 | MASTER_VALUE, &masterConfig.escAndServoConfig.servoCenterPulse, .config.minmax = { PWM_RANGE_ZERO, PWM_RANGE_MAX } },
{ "3d_deadband_low", VAR_UINT16 | MASTER_VALUE, &masterConfig.flight3DConfig.deadband3d_low, .config.minmax = { PWM_RANGE_ZERO, PWM_RANGE_MAX } }, // FIXME upper limit should match code in the mixer, 1500 currently

4
src/main/io/serial_msp.c
View file

@ -1226,7 +1226,7 @@ static bool processOutCommand(uint8_t cmdMSP)
serialize8(currentControlRateProfile->rcYawRate8);
serialize16(masterConfig.rxConfig.airModeActivateThreshold);
serialize8(masterConfig.rxConfig.rcSmoothInterval);
serialize16(masterConfig.escAndServoConfig.escDesyncProtection);
serialize16(masterConfig.escAndServoConfig.accelerationLimitPercent);
break;
case MSP_SENSOR_CONFIG:
headSerialReply(3);
@ -1801,7 +1801,7 @@ static bool processInCommand(void)
currentControlRateProfile->rcYawRate8 = read8();
masterConfig.rxConfig.airModeActivateThreshold = read16();
masterConfig.rxConfig.rcSmoothInterval = read8();
masterConfig.escAndServoConfig.escDesyncProtection = read16();
masterConfig.escAndServoConfig.accelerationLimitPercent = read16();
break;
case MSP_SET_SENSOR_CONFIG:
masterConfig.acc_hardware = read8();