@ -1,7 +1,7 @@
# include "board.h" # include "board.h"
# include "mw.h" # include "mw.h"
/ / March 2012 V2 .0 _pre_version_3
/ / March 2012 V2 .0
# define CHECKBOXITEMS 11 # define CHECKBOXITEMS 11
# define PIDITEMS 8 # define PIDITEMS 8
@ -22,19 +22,12 @@ uint8_t vbat; // battery voltage in 0.1V steps
volatile int16_t failsafeCnt = 0 ; volatile int16_t failsafeCnt = 0 ;
int16_t failsafeEvents = 0 ; int16_t failsafeEvents = 0 ;
int16_t rcData [ 8 ] ; / / interval [ 1000 ; 2000 ]
int16_t rcData [ 8 ] = { 1500 , 1500 , 1500 , 1500 , 1500 , 1500 , 1500 , 1500 } ; / / interval [ 1000 ; 2000 ]
int16_t rcCommand [ 4 ] ; / / interval [ 1000 ; 2000 ] for THROTTLE and [ - 500 ; + 500 ] for ROLL / PITCH / YAW int16_t rcCommand [ 4 ] ; / / interval [ 1000 ; 2000 ] for THROTTLE and [ - 500 ; + 500 ] for ROLL / PITCH / YAW
/ / uint8_t rcRate8 ;
/ / uint8_t rcExpo8 ;
int16_t lookupRX [ 7 ] ; / / lookup table for expo & RC rate
int16_t lookupRX [ 7 ] ; / / lookup table for expo & RC rate
rcReadRawDataPtr rcReadRawFunc = NULL ; / / receive data from default ( pwm / ppm ) or additional ( spek / sbus / ? ? receiver drivers )
/ / uint8_t P8 [ 8 ] , I8 [ 8 ] , D8 [ 8 ] ; / / 8 bits is much faster and the code is much shorter
uint8_t dynP8 [ 3 ] , dynI8 [ 3 ] , dynD8 [ 3 ] ; uint8_t dynP8 [ 3 ] , dynI8 [ 3 ] , dynD8 [ 3 ] ;
/ / uint8_t rollPitchRate ;
/ / uint8_t yawRate ;
/ / uint8_t dynThrPID ;
/ / uint8_t activate1 [ CHECKBOXITEMS ] ;
/ / uint8_t activate2 [ CHECKBOXITEMS ] ;
uint8_t rcOptions [ CHECKBOXITEMS ] ; uint8_t rcOptions [ CHECKBOXITEMS ] ;
uint8_t okToArm = 0 ; uint8_t okToArm = 0 ;
uint8_t accMode = 0 ; / / if level mode is a activated uint8_t accMode = 0 ; / / if level mode is a activated
@ -42,7 +35,6 @@ uint8_t magMode = 0; // if compass heading hold is a activated
uint8_t baroMode = 0 ; / / if altitude hold is activated uint8_t baroMode = 0 ; / / if altitude hold is activated
int16_t axisPID [ 3 ] ; int16_t axisPID [ 3 ] ;
volatile uint16_t rcValue [ 18 ] = { 1502 , 1502 , 1502 , 1502 , 1502 , 1502 , 1502 , 1502 , 1502 , 1502 , 1502 , 1502 , 1502 , 1502 , 1502 , 1502 , 1502 , 1502 } ; / / interval [ 1000 ; 2000 ]
/ / * * * * * * * * * * * * * * * * * * * * * * / / * * * * * * * * * * * * * * * * * * * * * *
/ / GPS / / GPS
@ -60,7 +52,6 @@ uint16_t GPS_altitude, GPS_speed; // altitude in 0.1m and speed in 0.1m/s
uint8_t GPS_update = 0 ; / / it ' s a binary toogle to distinct a GPS position update uint8_t GPS_update = 0 ; / / it ' s a binary toogle to distinct a GPS position update
int16_t GPS_angle [ 2 ] ; / / it ' s the angles that must be applied for GPS correction int16_t GPS_angle [ 2 ] ; / / it ' s the angles that must be applied for GPS correction
/ / Automatic ACC Offset Calibration / / Automatic ACC Offset Calibration
/ / * * * * * * * * * * * * * * * * * * * * * * / / * * * * * * * * * * * * * * * * * * * * * *
uint16_t InflightcalibratingA = 0 ; uint16_t InflightcalibratingA = 0 ;
@ -76,7 +67,6 @@ uint16_t AccInflightCalibrationActive = 0;
uint32_t pMeter [ PMOTOR_SUM + 1 ] ; / / we use [ 0 : 7 ] for eight motors , one extra for sum uint32_t pMeter [ PMOTOR_SUM + 1 ] ; / / we use [ 0 : 7 ] for eight motors , one extra for sum
uint8_t pMeterV ; / / dummy to satisfy the paramStruct logic in ConfigurationLoop ( ) uint8_t pMeterV ; / / dummy to satisfy the paramStruct logic in ConfigurationLoop ( )
uint32_t pAlarm ; / / we scale the eeprom value from [ 0 : 255 ] to this value we can directly compare to the sum in pMeter [ 6 ] uint32_t pAlarm ; / / we scale the eeprom value from [ 0 : 255 ] to this value we can directly compare to the sum in pMeter [ 6 ]
/ / uint8_t powerTrigger1 = 0 ;
uint16_t powerValue = 0 ; / / last known current uint16_t powerValue = 0 ; / / last known current
uint16_t intPowerMeterSum , intPowerTrigger1 ; uint16_t intPowerMeterSum , intPowerTrigger1 ;
uint8_t batteryCellCount = 3 ; / / cell count uint8_t batteryCellCount = 3 ; / / cell count
@ -119,7 +109,7 @@ void annexCode(void)
static uint16_t vbatRawArray [ 8 ] ; static uint16_t vbatRawArray [ 8 ] ;
uint8_t i ; uint8_t i ;
/ / PITCH & ROLL only dynamic PID adjustemnt , depending on throttle value
/ / PITCH & ROLL only dynamic PID adjustemnt , depending on throttle value
if ( rcData [ THROTTLE ] < 1500 ) { if ( rcData [ THROTTLE ] < 1500 ) {
prop2 = 100 ; prop2 = 100 ;
} else if ( rcData [ THROTTLE ] < 2000 ) { } else if ( rcData [ THROTTLE ] < 2000 ) {
@ -141,20 +131,20 @@ void annexCode(void)
uint16_t tmp2 = tmp / 100 ; uint16_t tmp2 = tmp / 100 ;
rcCommand [ axis ] = lookupRX [ tmp2 ] + ( tmp - tmp2 * 100 ) * ( lookupRX [ tmp2 + 1 ] - lookupRX [ tmp2 ] ) / 100 ; rcCommand [ axis ] = lookupRX [ tmp2 ] + ( tmp - tmp2 * 100 ) * ( lookupRX [ tmp2 + 1 ] - lookupRX [ tmp2 ] ) / 100 ;
prop1 = 100 - ( uint16_t ) cfg . rollPitchRate * tmp / 500 ; prop1 = 100 - ( uint16_t ) cfg . rollPitchRate * tmp / 500 ;
prop1 = ( uint16_t ) prop1 * prop2 / 100 ;
prop1 = ( uint16_t ) prop1 * prop2 / 100 ;
} else { / / YAW } else { / / YAW
rcCommand [ axis ] = tmp ; rcCommand [ axis ] = tmp ;
prop1 = 100 - ( uint16_t ) cfg . yawRate * tmp / 500 ;
prop1 = 100 - ( uint16_t ) cfg . yawRate * tmp / 500 ;
} }
dynP8 [ axis ] = ( uint16_t ) cfg . P8 [ axis ] * prop1 / 100 ;
dynD8 [ axis ] = ( uint16_t ) cfg . D8 [ axis ] * prop1 / 100 ;
dynP8 [ axis ] = ( uint16_t ) cfg . P8 [ axis ] * prop1 / 100 ;
dynD8 [ axis ] = ( uint16_t ) cfg . D8 [ axis ] * prop1 / 100 ;
if ( rcData [ axis ] < cfg . midrc ) if ( rcData [ axis ] < cfg . midrc )
rcCommand [ axis ] = - rcCommand [ axis ] ; rcCommand [ axis ] = - rcCommand [ axis ] ;
} }
rcCommand [ THROTTLE ] = cfg . minthrottle + ( int32_t ) ( cfg . maxthrottle - cfg . minthrottle ) * ( rcData [ THROTTLE ] - cfg . mincheck ) / ( 2000 - cfg . mincheck ) ;
rcCommand [ THROTTLE ] = cfg . minthrottle + ( int32_t ) ( cfg . maxthrottle - cfg . minthrottle ) * ( rcData [ THROTTLE ] - cfg . mincheck ) / ( 2000 - cfg . mincheck ) ;
if ( headFreeMode ) { if ( headFreeMode ) {
float radDiff = ( heading - headFreeModeHold ) * 0.0174533f ; / / where PI / 180 ~ = 0.0174533
float radDiff = ( heading - headFreeModeHold ) * M_PI / 180.0f ;
float cosDiff = cosf ( radDiff ) ; float cosDiff = cosf ( radDiff ) ;
float sinDiff = sinf ( radDiff ) ; float sinDiff = sinf ( radDiff ) ;
int16_t rcCommand_PITCH = rcCommand [ PITCH ] * cosDiff + rcCommand [ ROLL ] * sinDiff ; int16_t rcCommand_PITCH = rcCommand [ PITCH ] * cosDiff + rcCommand [ ROLL ] * sinDiff ;
@ -274,7 +264,7 @@ void annexCode(void)
} }
} }
uint16_t r eadRawRC( uint8_t chan )
uint16_t pwmR eadRawRC( uint8_t chan )
{ {
uint16_t data ; uint16_t data ;
@ -292,12 +282,9 @@ void computeRC(void)
static uint8_t rc4ValuesIndex = 0 ; static uint8_t rc4ValuesIndex = 0 ;
uint8_t chan , a ; uint8_t chan , a ;
# if defined(SBUS)
readSBus ( ) ;
# endif
rc4ValuesIndex + + ; rc4ValuesIndex + + ;
for ( chan = 0 ; chan < 8 ; chan + + ) { for ( chan = 0 ; chan < 8 ; chan + + ) {
rcData4Values [ chan ] [ rc4ValuesIndex % 4 ] = readRawRC ( chan ) ;
rcData4Values [ chan ] [ rc4ValuesIndex % 4 ] = rcReadRawFunc ( chan ) ;
rcDataMean [ chan ] = 0 ; rcDataMean [ chan ] = 0 ;
for ( a = 0 ; a < 4 ; a + + ) for ( a = 0 ; a < 4 ; a + + )
rcDataMean [ chan ] + = rcData4Values [ chan ] [ a ] ; rcDataMean [ chan ] + = rcData4Values [ chan ] [ a ] ;
@ -324,16 +311,15 @@ void loop(void)
static uint32_t rcTime = 0 ; static uint32_t rcTime = 0 ;
static int16_t initialThrottleHold ; static int16_t initialThrottleHold ;
# if defined(SPEKTRUM)
if ( rcFrameComplete )
/ / this will return false if spektrum is disabled . shrug .
if ( spektrumFrameComplete ( ) )
computeRC ( ) ; computeRC ( ) ;
# endif
if ( currentTime > rcTime ) { / / 50 Hz if ( currentTime > rcTime ) { / / 50 Hz
rcTime = currentTime + 20000 ; rcTime = currentTime + 20000 ;
# if !(defined(SPEKTRUM) ||defined(BTSERIAL))
computeRC ( ) ;
# endif
/ / TODO clean this up . computeRC should handle this check
if ( ! feature ( FEATURE_SPEKTRUM ) )
computeRC ( ) ;
/ / Failsafe routine - added by MIS / / Failsafe routine - added by MIS
# if defined(FAILSAFE) # if defined(FAILSAFE)
if ( failsafeCnt > ( 5 * FAILSAVE_DELAY ) & & armed = = 1 ) { / / Stabilize , and set Throttle to specified level if ( failsafeCnt > ( 5 * FAILSAVE_DELAY ) & & armed = = 1 ) { / / Stabilize , and set Throttle to specified level
@ -376,7 +362,7 @@ void loop(void)
} }
} else if ( feature ( FEATURE_INFLIGHT_ACC_CAL ) & & ( armed = = 0 & & rcData [ YAW ] < cfg . mincheck & & rcData [ PITCH ] > cfg . maxcheck & & rcData [ ROLL ] > cfg . maxcheck ) ) { } else if ( feature ( FEATURE_INFLIGHT_ACC_CAL ) & & ( armed = = 0 & & rcData [ YAW ] < cfg . mincheck & & rcData [ PITCH ] > cfg . maxcheck & & rcData [ ROLL ] > cfg . maxcheck ) ) {
if ( rcDelayCommand = = 20 ) { if ( rcDelayCommand = = 20 ) {
if ( AccInflightCalibrationMeasurementDone ) { / / trigger saving into eeprom after landing
if ( AccInflightCalibrationMeasurementDone ) { / / trigger saving into eeprom after landing
AccInflightCalibrationMeasurementDone = 0 ; AccInflightCalibrationMeasurementDone = 0 ;
AccInflightCalibrationSavetoEEProm = 1 ; AccInflightCalibrationSavetoEEProm = 1 ;
} else { } else {
@ -395,12 +381,10 @@ void loop(void)
} else if ( armed ) } else if ( armed )
armed = 0 ; armed = 0 ;
rcDelayCommand = 0 ; rcDelayCommand = 0 ;
} else if ( ( rcData [ YAW ] < cfg . mincheck | | rcData [ ROLL ] < cfg . mincheck )
& & armed = = 1 ) {
} else if ( ( rcData [ YAW ] < cfg . mincheck | | rcData [ ROLL ] < cfg . mincheck ) & & armed = = 1 ) {
if ( rcDelayCommand = = 20 ) if ( rcDelayCommand = = 20 )
armed = 0 ; / / rcDelayCommand = 20 = > 20 x20ms = 0.4 s = time to wait for a specific RC command to be acknowledged armed = 0 ; / / rcDelayCommand = 20 = > 20 x20ms = 0.4 s = time to wait for a specific RC command to be acknowledged
} else if ( ( rcData [ YAW ] > cfg . maxcheck | | rcData [ ROLL ] > cfg . maxcheck )
& & rcData [ PITCH ] < cfg . maxcheck & & armed = = 0 & & calibratingG = = 0 & & calibratedACC = = 1 ) {
} else if ( ( rcData [ YAW ] > cfg . maxcheck | | rcData [ ROLL ] > cfg . maxcheck ) & & rcData [ PITCH ] < cfg . maxcheck & & armed = = 0 & & calibratingG = = 0 & & calibratedACC = = 1 ) {
if ( rcDelayCommand = = 20 ) { if ( rcDelayCommand = = 20 ) {
armed = 1 ; armed = 1 ;
headFreeModeHold = heading ; headFreeModeHold = heading ;
@ -418,11 +402,11 @@ void loop(void)
} else } else
rcDelayCommand = 0 ; rcDelayCommand = 0 ;
} else if ( rcData [ THROTTLE ] > cfg . maxcheck & & armed = = 0 ) { } else if ( rcData [ THROTTLE ] > cfg . maxcheck & & armed = = 0 ) {
if ( rcData [ YAW ] < cfg . mincheck & & rcData [ PITCH ] < cfg . mincheck ) { / / throttle = max , yaw = left , pitch = min
if ( rcData [ YAW ] < cfg . mincheck & & rcData [ PITCH ] < cfg . mincheck ) { / / throttle = max , yaw = left , pitch = min
if ( rcDelayCommand = = 20 ) if ( rcDelayCommand = = 20 )
calibratingA = 400 ; calibratingA = 400 ;
rcDelayCommand + + ; rcDelayCommand + + ;
} else if ( rcData [ YAW ] > cfg . maxcheck & & rcData [ PITCH ] < cfg . mincheck ) { / / throttle = max , yaw = right , pitch = min
} else if ( rcData [ YAW ] > cfg . maxcheck & & rcData [ PITCH ] < cfg . mincheck ) { / / throttle = max , yaw = right , pitch = min
if ( rcDelayCommand = = 20 ) if ( rcDelayCommand = = 20 )
calibratingM = 1 ; / / MAG calibration request calibratingM = 1 ; / / MAG calibration request
rcDelayCommand + + ; rcDelayCommand + + ;
@ -462,7 +446,7 @@ void loop(void)
InflightcalibratingA = 50 ; InflightcalibratingA = 50 ;
AccInflightCalibrationArmed = 0 ; AccInflightCalibrationArmed = 0 ;
} }
if ( rcOptions [ BOXPASSTHRU ] ) { / / Use the Passthru Option to activate : Passthru = TRUE Meausrement started , Land and passtrhu = 0 measurement stored
if ( rcOptions [ BOXPASSTHRU ] ) { / / Use the Passthru Option to activate : Passthru = TRUE Meausrement started , Land and passtrhu = 0 measurement stored
if ( ! AccInflightCalibrationArmed ) { if ( ! AccInflightCalibrationArmed ) {
AccInflightCalibrationArmed = 1 ; AccInflightCalibrationArmed = 1 ;
InflightcalibratingA = 50 ; InflightcalibratingA = 50 ;
@ -479,7 +463,7 @@ void loop(void)
| | ( ( ( rcData [ AUX3 ] < 1300 ) | ( 1300 < rcData [ AUX3 ] & & rcData [ AUX3 ] < 1700 ) < < 1 | ( rcData [ AUX3 ] > 1700 ) < < 2 | ( rcData [ AUX4 ] < 1300 ) < < 3 | ( 1300 < rcData [ AUX4 ] & & rcData [ AUX4 ] < 1700 ) < < 4 | ( rcData [ AUX4 ] > 1700 ) < < 5 ) & cfg . activate2 [ i ] ) ; | | ( ( ( rcData [ AUX3 ] < 1300 ) | ( 1300 < rcData [ AUX3 ] & & rcData [ AUX3 ] < 1700 ) < < 1 | ( rcData [ AUX3 ] > 1700 ) < < 2 | ( rcData [ AUX4 ] < 1300 ) < < 3 | ( 1300 < rcData [ AUX4 ] & & rcData [ AUX4 ] < 1700 ) < < 4 | ( rcData [ AUX4 ] > 1700 ) < < 5 ) & cfg . activate2 [ i ] ) ;
} }
/ / note : if FAILSAFE is disable , failsafeCnt > 5 * FAILSAVE_DELAY is always false
/ / note : if FAILSAFE is disable , failsafeCnt > 5 * FAILSAVE_DELAY is always false
if ( ( rcOptions [ BOXACC ] | | ( failsafeCnt > 5 * FAILSAVE_DELAY ) ) & & ( sensors ( SENSOR_ACC ) ) ) { if ( ( rcOptions [ BOXACC ] | | ( failsafeCnt > 5 * FAILSAVE_DELAY ) ) & & ( sensors ( SENSOR_ACC ) ) ) {
/ / bumpless transfer to Level mode / / bumpless transfer to Level mode
if ( ! accMode ) { if ( ! accMode ) {
@ -547,7 +531,7 @@ void loop(void)
} else } else
passThruMode = 0 ; passThruMode = 0 ;
} else { / / not in rc loop } else { / / not in rc loop
static int8_t taskOrder = 0 ; / / never call all function in the same loop , to avoid high delay spikes
static int8_t taskOrder = 0 ; / / never call all function in the same loop , to avoid high delay spikes
switch ( taskOrder ) { switch ( taskOrder ) {
case 0 : case 0 :
taskOrder + + ; taskOrder + + ;
@ -570,7 +554,6 @@ void loop(void)
GPS_NewData ( ) ; GPS_NewData ( ) ;
# endif # endif
break ; break ;
default : default :
taskOrder = 0 ; taskOrder = 0 ;
break ; break ;
@ -578,12 +561,11 @@ void loop(void)
} }
computeIMU ( ) ; computeIMU ( ) ;
/ / Measure loop rate just afer reading the sensors / / Measure loop rate just afer reading the sensors
currentTime = micros ( ) ; currentTime = micros ( ) ;
cycleTime = currentTime - previousTime ; cycleTime = currentTime - previousTime ;
previousTime = currentTime ; previousTime = currentTime ;
mpu6050DmpLoop ( ) ; mpu6050DmpLoop ( ) ;
if ( sensors ( SENSOR_MAG ) ) { if ( sensors ( SENSOR_MAG ) ) {
@ -625,37 +607,38 @@ void loop(void)
GPS_dist = GPS_distanceToHold ; GPS_dist = GPS_distanceToHold ;
GPS_dir = GPS_directionToHold ; GPS_dir = GPS_directionToHold ;
} }
radDiff = ( GPS_dir - heading ) * 0.0174533 f ;
GPS_angle [ ROLL ] = constrain ( cfg . P8 [ PIDGPS ] * sin ( radDiff ) * GPS_dist / 10 , - cfg . D8 [ PIDGPS ] * 10 , + cfg . D8 [ PIDGPS ] * 10 ) ; / / with P = 5.0 , a distance of 1 meter = 0.5 deg inclination
GPS_angle [ PITCH ] = constrain ( cfg . P8 [ PIDGPS ] * cos ( radDiff ) * GPS_dist / 10 , - cfg . D8 [ PIDGPS ] * 10 , + cfg . D8 [ PIDGPS ] * 10 ) ; / / max inclination = D deg
radDiff = ( GPS_dir - heading ) * M_PI / 18 0.0f;
GPS_angle [ ROLL ] = constrain ( cfg . P8 [ PIDGPS ] * sinf ( radDiff ) * GPS_dist / 10 , - cfg . D8 [ PIDGPS ] * 10 , + cfg . D8 [ PIDGPS ] * 10 ) ; / / with P = 5.0 , a distance of 1 meter = 0.5 deg inclination
GPS_angle [ PITCH ] = constrain ( cfg . P8 [ PIDGPS ] * cosf ( radDiff ) * GPS_dist / 10 , - cfg . D8 [ PIDGPS ] * 10 , + cfg . D8 [ PIDGPS ] * 10 ) ; / / max inclination = D deg
} }
} }
/ /**** PITCH & ROLL & YAW PID ****
/ / * * * * PITCH & ROLL & YAW PID * * * *
for ( axis = 0 ; axis < 3 ; axis + + ) { for ( axis = 0 ; axis < 3 ; axis + + ) {
if ( accMode = = 1 & & axis < 2 ) { / / LEVEL MODE
if ( accMode = = 1 & & axis < 2 ) { / / LEVEL MODE
/ / 50 degrees max inclination / / 50 degrees max inclination
errorAngle = constrain ( 2 * rcCommand [ axis ] - GPS_angle [ axis ] , - 500 , + 500 ) - angle [ axis ] + cfg . accTrim [ axis ] ; / / 16 bits is ok here errorAngle = constrain ( 2 * rcCommand [ axis ] - GPS_angle [ axis ] , - 500 , + 500 ) - angle [ axis ] + cfg . accTrim [ axis ] ; / / 16 bits is ok here
# ifdef LEVEL_PDF # ifdef LEVEL_PDF
PTerm = - ( int32_t ) angle [ axis ] * cfg . P8 [ PIDLEVEL ] / 100 ;
PTerm = - ( int32_t ) angle [ axis ] * cfg . P8 [ PIDLEVEL ] / 100 ;
# else # else
PTerm = ( int32_t ) errorAngle * cfg . P8 [ PIDLEVEL ] / 100 ; / / 32 bits is needed for calculation : errorAngle * P8 [ PIDLEVEL ] could exceed 32768 16 bits is ok for result
PTerm = ( int32_t ) errorAngle * cfg . P8 [ PIDLEVEL ] / 100 ; / / 32 bits is needed for calculation : errorAngle * P8 [ PIDLEVEL ] could exceed 32768 16 bits is ok for result
# endif # endif
PTerm = constrain ( PTerm , - cfg . D8 [ PIDLEVEL ] * 5 , + cfg . D8 [ PIDLEVEL ] * 5 ) ; PTerm = constrain ( PTerm , - cfg . D8 [ PIDLEVEL ] * 5 , + cfg . D8 [ PIDLEVEL ] * 5 ) ;
errorAngleI [ axis ] = constrain ( errorAngleI [ axis ] + errorAngle , - 10000 , + 10000 ) ; / / WindUp / / 16 bits is ok here
ITerm = ( ( int32_t ) errorAngleI [ axis ] * cfg . I8 [ PIDLEVEL ] ) > > 12 ; / / 32 bits is needed for calculation : 10000 * I8 could exceed 32768 16 bits is ok for result
} else { / / ACRO MODE or YAW axis
error = ( int32_t ) rcCommand [ axis ] * 10 * 8 / cfg . P8 [ axis ] ; / / 32 bits is needed for calculation : 500 * 5 * 10 * 8 = 200000 16 bits is ok for result if P8 > 2 ( P > 0.2 )
errorAngleI [ axis ] = constrain ( errorAngleI [ axis ] + errorAngle , - 10000 , + 10000 ) ; / / WindUp / / 16 bits is ok here
ITerm = ( ( int32_t ) errorAngleI [ axis ] * cfg . I8 [ PIDLEVEL ] ) > > 12 ; / / 32 bits is needed for calculation : 10000 * I8 could exceed 32768 16 bits is ok for result
} else { / / ACRO MODE or YAW axis
error = ( int32_t ) rcCommand [ axis ] * 10 * 8 / cfg . P8 [ axis ] ; / / 32 bits is needed for calculation : 500 * 5 * 10 * 8 = 200000 16 bits is ok for result if P8 > 2 ( P > 0.2 )
error - = gyroData [ axis ] ; error - = gyroData [ axis ] ;
PTerm = rcCommand [ axis ] ; PTerm = rcCommand [ axis ] ;
errorGyroI [ axis ] = constrain ( errorGyroI [ axis ] + error , - 16000 , + 16000 ) ; / / WindUp / / 16 bits is ok here
errorGyroI [ axis ] = constrain ( errorGyroI [ axis ] + error , - 16000 , + 16000 ) ; / / WindUp / / 16 bits is ok here
if ( abs ( gyroData [ axis ] ) > 640 ) if ( abs ( gyroData [ axis ] ) > 640 )
errorGyroI [ axis ] = 0 ; errorGyroI [ axis ] = 0 ;
ITerm = ( errorGyroI [ axis ] / 125 * cfg . I8 [ axis ] ) > > 6 ; / / 16 bits is ok here 16000 / 125 = 128 ; 128 * 250 = 32000 ITerm = ( errorGyroI [ axis ] / 125 * cfg . I8 [ axis ] ) > > 6 ; / / 16 bits is ok here 16000 / 125 = 128 ; 128 * 250 = 32000
} }
PTerm - = ( int32_t ) gyroData [ axis ] * dynP8 [ axis ] / 10 / 8 ; / / 32 bits is needed for calculation
PTerm - = ( int32_t ) gyroData [ axis ] * dynP8 [ axis ] / 10 / 8 ; / / 32 bits is needed for calculation
delta = gyroData [ axis ] - lastGyro [ axis ] ; / / 16 bits is ok here , the dif between 2 consecutive gyro reads is limited to 800 delta = gyroData [ axis ] - lastGyro [ axis ] ; / / 16 bits is ok here , the dif between 2 consecutive gyro reads is limited to 800
lastGyro [ axis ] = gyroData [ axis ] ; lastGyro [ axis ] = gyroData [ axis ] ;
@ -663,7 +646,7 @@ void loop(void)
delta2 [ axis ] = delta1 [ axis ] ; delta2 [ axis ] = delta1 [ axis ] ;
delta1 [ axis ] = delta ; delta1 [ axis ] = delta ;
DTerm = ( ( int32_t ) deltaSum * dynD8 [ axis ] ) > > 5 ; / / 32 bits is needed for calculation
DTerm = ( ( int32_t ) deltaSum * dynD8 [ axis ] ) > > 5 ; / / 32 bits is needed for calculation
axisPID [ axis ] = PTerm + ITerm - DTerm ; axisPID [ axis ] = PTerm + ITerm - DTerm ;
} }
timecop
13 years ago