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Code Issues Releases Activity

Modifications to prevent glitches on servo output during save for ActuatorSettings

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Refactored the updating of ChannelUpdateFreq so that it is done only when the actual update rates changes.
The actual update of the servo channel is moved inside the ActuatorTask.
Now the problem happen only in very few cases when modifying update rates.
This commit is contained in:
a*morale 2012-06-23 22:55:57 +02:00
parent a242c2f383
commit 688ae814fc
1 changed files with 33 additions and 8 deletions
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41
flight/Modules/Actuator/actuator.c
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@ -67,7 +67,8 @@ static xTaskHandle taskHandle;
static float lastResult[MAX_MIX_ACTUATORS]={0,0,0,0,0,0,0,0};
static float lastFilteredResult[MAX_MIX_ACTUATORS]={0,0,0,0,0,0,0,0};
static float filterAccumulator[MAX_MIX_ACTUATORS]={0,0,0,0,0,0,0,0};
// used to inform the actuator thread that actuator update rate is changed
static uint8_t updateRateChanged = 0;
// Private functions
static void actuatorTask(void* parameters);
@ -76,6 +77,7 @@ static int16_t scaleChannel(float value, int16_t max, int16_t min, int16_t neutr
static void setFailsafe();
static float MixerCurve(const float throttle, const float* curve, uint8_t elements);
static bool set_channel(uint8_t mixer_channel, uint16_t value);
static void change_update_rate();
float ProcessMixer(const int index, const float curve1, const float curve2,
MixerSettingsData* mixerSettings, ActuatorDesiredData* desired,
const float period);
@ -157,10 +159,9 @@ static void actuatorTask(void* parameters)
int16_t ChannelMax[ACTUATORCOMMAND_CHANNEL_NUMELEM];
int16_t ChannelMin[ACTUATORCOMMAND_CHANNEL_NUMELEM];
int16_t ChannelNeutral[ACTUATORCOMMAND_CHANNEL_NUMELEM];
uint16_t ChannelUpdateFreq[ACTUATORSETTINGS_CHANNELUPDATEFREQ_NUMELEM];
ActuatorSettingsChannelUpdateFreqGet(ChannelUpdateFreq);
PIOS_Servo_SetHz(&ChannelUpdateFreq[0], ACTUATORSETTINGS_CHANNELUPDATEFREQ_NUMELEM);
change_update_rate();
float * status = (float *)&mixerStatus; //access status objects as an array of floats
// Go to the neutral (failsafe) values until an ActuatorDesired update is received
@ -179,6 +180,12 @@ static void actuatorTask(void* parameters)
continue;
}
if(updateRateChanged!=0)
{
change_update_rate();
updateRateChanged=0;
}
// Check how long since last update
thisSysTime = xTaskGetTickCount();
if(thisSysTime > lastSysTime) // reuse dt in case of wraparound
@ -546,11 +553,29 @@ static void setFailsafe()
*/
static void actuator_update_rate(UAVObjEvent * ev)
{
static uint16_t lastChannelUpdateFreq[ACTUATORSETTINGS_CHANNELUPDATEFREQ_NUMELEM] = {0,0,0,0};
uint16_t ChannelUpdateFreq[ACTUATORSETTINGS_CHANNELUPDATEFREQ_NUMELEM];
if ( ev->obj == ActuatorSettingsHandle() ) {
ActuatorSettingsChannelUpdateFreqGet(ChannelUpdateFreq);
PIOS_Servo_SetHz(&ChannelUpdateFreq[0], ACTUATORSETTINGS_CHANNELUPDATEFREQ_NUMELEM);
}
// ActuatoSettings are not changed
if ( ev->obj != ActuatorSettingsHandle() )
return;
ActuatorSettingsChannelUpdateFreqGet(ChannelUpdateFreq);
// check if the any rate setting is changed
if (lastChannelUpdateFreq[0]!=0 && memcmp(&lastChannelUpdateFreq[0], &ChannelUpdateFreq[0], sizeof(int16_t) * ACTUATORSETTINGS_CHANNELUPDATEFREQ_NUMELEM) ==0)
return;
// save the new rates
memcpy(lastChannelUpdateFreq, ChannelUpdateFreq, sizeof(int16_t) * ACTUATORSETTINGS_CHANNELUPDATEFREQ_NUMELEM);
// signal to the actuator task that ChannelUpdateFreq are changed
updateRateChanged = 1;
}
/**
* @brief Change the update rates according to the ActuatorSettingsChannelUpdateFreq.
*/
static void change_update_rate()
{
uint16_t ChannelUpdateFreq[ACTUATORSETTINGS_CHANNELUPDATEFREQ_NUMELEM];
ActuatorSettingsChannelUpdateFreqGet(ChannelUpdateFreq);
PIOS_Servo_SetHz(&ChannelUpdateFreq[0], ACTUATORSETTINGS_CHANNELUPDATEFREQ_NUMELEM);
}
#if defined(ARCH_POSIX) || defined(ARCH_WIN32)