0,0 → 1,473 |
#include "main.h" |
#include "spectrum.h" |
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volatile unsigned int CountMilliseconds = 0; |
volatile static unsigned int tim_main; |
volatile unsigned char UpdateMotor = 0; |
volatile unsigned int cntKompass = 0; |
volatile unsigned int beeptime = 0; |
volatile unsigned char SendSPI = 0, ServoActive = 0; |
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unsigned int BeepMuster = 0xffff; |
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volatile int16_t ServoNickValue = 0; |
volatile int16_t ServoRollValue = 0; |
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// Arthur P: Added two variables for control of the shutter servo cycle. |
// 09114 Inserted same changes into v.0.76g code. |
volatile static unsigned int CameraShutterCycleCounter = 0; |
volatile static unsigned int CameraShutterCycle = 0; |
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enum { |
STOP = 0, |
CK = 1, |
CK8 = 2, |
CK64 = 3, |
CK256 = 4, |
CK1024 = 5, |
T0_FALLING_EDGE = 6, |
T0_RISING_EDGE = 7 |
}; |
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SIGNAL (SIG_OVERFLOW0) // 9,7kHz |
{ |
static unsigned char cnt_1ms = 1,cnt = 0; |
unsigned char pieper_ein = 0; |
if(SendSPI) SendSPI--; |
if(SpektrumTimer) SpektrumTimer--; |
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if(!cnt--) |
{ |
cnt = 9; |
cnt_1ms++; |
cnt_1ms %= 2; |
if(!cnt_1ms) UpdateMotor = 1; |
CountMilliseconds++; |
} |
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if(beeptime >= 1) |
{ |
beeptime--; |
if(beeptime & BeepMuster) |
{ |
pieper_ein = 1; |
} |
else pieper_ein = 0; |
} |
else |
{ |
pieper_ein = 0; |
BeepMuster = 0xffff; |
} |
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if(pieper_ein) |
{ |
if(PlatinenVersion == 10) PORTD |= (1<<2); // Speaker an PORTD.2 |
else PORTC |= (1<<7); // Speaker an PORTC.7 |
} |
else |
{ |
if(PlatinenVersion == 10) PORTD &= ~(1<<2); |
else PORTC &= ~(1<<7); |
} |
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if(EE_Parameter.GlobalConfig & CFG_KOMPASS_AKTIV) |
{ |
if(PINC & 0x10) |
{ |
cntKompass++; |
} |
else |
{ |
if((cntKompass) && (cntKompass < 362)) |
{ |
cntKompass += cntKompass / 41; |
if(cntKompass > 10) KompassValue = cntKompass - 10; else KompassValue = 0; |
} |
// if(cntKompass < 10) cntKompass =r 10; |
// KompassValue = (unsigned long)((unsigned long)(cntKompass-10)*720L + 1L) / 703L; |
KompassRichtung = ((540 + KompassValue - KompassStartwert) % 360) - 180; |
cntKompass = 0; |
} |
} |
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} |
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// ----------------------------------------------------------------------- |
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unsigned int SetDelay (unsigned int t) |
{ |
// TIMSK0 &= ~_BV(TOIE0); |
return(CountMilliseconds + t + 1); |
// TIMSK0 |= _BV(TOIE0); |
} |
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// ----------------------------------------------------------------------- |
char CheckDelay(unsigned int t) |
{ |
// TIMSK0 &= ~_BV(TOIE0); |
return(((t - CountMilliseconds) & 0x8000) >> 9); |
// TIMSK0 |= _BV(TOIE0); |
} |
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// ----------------------------------------------------------------------- |
void Delay_ms(unsigned int w) |
{ |
unsigned int akt; |
akt = SetDelay(w); |
while (!CheckDelay(akt)); |
} |
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void Delay_ms_Mess(unsigned int w) |
{ |
unsigned int akt; |
akt = SetDelay(w); |
while (!CheckDelay(akt)) if(AdReady) {AdReady = 0; ANALOG_ON;} |
} |
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/*****************************************************/ |
/* Initialize Timer 2 */ |
/*****************************************************/ |
// The timer 2 is used to generate the PWM at PD7 (J7) |
// to control a camera servo for nick compensation. |
void TIMER2_Init(void) |
{ |
uint8_t sreg = SREG; |
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// disable all interrupts before reconfiguration |
cli(); |
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PORTD &= ~(1<<PORTD7); // set PD7 to low |
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DDRC |= (1<<DDC6); // set PC6 as output (Reset for HEF4017) |
HEF4017R_ON; |
// Timer/Counter 2 Control Register A |
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// Timer Mode is FastPWM with timer reload at OCR2A (Bits: WGM22 = 1, WGM21 = 1, WGM20 = 1) |
// PD7: Normal port operation, OC2A disconnected, (Bits: COM2A1 = 0, COM2A0 = 0) |
// PD6: Normal port operation, OC2B disconnected, (Bits: COM2B1 = 0, COM2B0 = 0) |
TCCR2A &= ~((1<<COM2A1)|(1<<COM2A0)|(1<<COM2B1)|(1<<COM2B0)); |
TCCR2A |= (1<<WGM21)|(1<<WGM20); |
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// Timer/Counter 2 Control Register B |
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// Set clock divider for timer 2 to SYSKLOCK/32 = 20MHz / 32 = 625 kHz |
// The timer increments from 0x00 to 0xFF with an update rate of 625 kHz or 1.6 us |
// hence the timer overflow interrupt frequency is 625 kHz / 256 = 2.44 kHz or 0.4096 ms |
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// divider 32 (Bits: CS022 = 0, CS21 = 1, CS20 = 1) |
TCCR2B &= ~((1<<FOC2A)|(1<<FOC2B)|(1<<CS22)); |
TCCR2B |= (1<<CS21)|(1<<CS20)|(1<<WGM22); |
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// Initialize the Timer/Counter 2 Register |
TCNT2 = 0; |
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// Initialize the Output Compare Register A used for PWM generation on port PD7. |
OCR2A = 255; |
TCCR2A |= (1<<COM2A1); // set or clear at compare match depends on value of COM2A0 |
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// Timer/Counter 2 Interrupt Mask Register |
// Enable timer output compare match A Interrupt only |
TIMSK2 &= ~((1<<OCIE2B)|(1<<TOIE2)); |
TIMSK2 |= (1<<OCIE2A); |
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SREG = sreg; |
} |
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//---------------------------- |
void Timer_Init(void) |
{ |
tim_main = SetDelay(10); |
TCCR0B = CK8; |
TCCR0A = (1<<COM0A1)|(1<<COM0B1)|3;//fast PWM |
OCR0A = 0; |
OCR0B = 120; |
TCNT0 = (unsigned char)-TIMER_RELOAD_VALUE; // reload |
//OCR1 = 0x00; |
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TIMSK0 |= _BV(TOIE0); |
} |
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/*****************************************************/ |
/* Control Servo Position */ |
/*****************************************************/ |
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ISR(TIMER2_COMPA_vect) |
{ |
// frame len 22.5 ms = 14063 * 1.6 us |
// stop pulse: 0.3 ms = 188 * 1.6 us |
// min servo pulse: 0.6 ms = 375 * 1.6 us |
// max servo pulse: 2.4 ms = 1500 * 1.6 us |
// resolution: 1500 - 375 = 1125 steps |
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#define IRS_RUNTIME 127 |
#define PPM_STOPPULSE 188 |
// #define PPM_FRAMELEN (14063 |
#define PPM_FRAMELEN (1757 * EE_Parameter.ServoNickRefresh) |
#define MINSERVOPULSE 375 |
#define MAXSERVOPULSE 1500 |
#define SERVORANGE (MAXSERVOPULSE - MINSERVOPULSE) |
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static uint8_t PulseOutput = 0; |
static uint16_t RemainingPulse = 0; |
static uint16_t ServoFrameTime = 0; |
static uint8_t ServoIndex = 0; |
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#define MULTIPLYER 4 |
static int16_t ServoNickOffset = (255 / 2) * MULTIPLYER; // initial value near center positon |
static int16_t ServoRollOffset = (255 / 2) * MULTIPLYER; // initial value near center positon |
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// Arthur P: Added initialization of the CameraShutterCycle value here as this routine is only |
// called once. This retains all code changes in timer0.c. If parameter 6 > 0 then the user |
// has set a value for the cycle. CameraShuytterCycle == 5x Para6 to get approx 0.1sec increments. |
// 090807: Arthur P.: Removed the shutter cycle parts as they may be impacting timing loops. |
// CameraShutterCycle = 5 * Parameter_UserParam6; |
// CameraShutterCycle = Parameter_UserParam6; |
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// Arthur P: Modified the code to scheck the value of parameter 8. If 128 or higher then a HEF4017 is |
// expected and will be used. Else J7 and J9 are seen as separate normal outputs. |
// if((PlatinenVersion < 20) |
// 091114. Inserted same changes into v.0.76g code. |
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if((PlatinenVersion < 20) && (Parameter_UserParam8 < 128 )) |
{ |
//--------------------------- |
// Nick servo state machine |
//--------------------------- |
if(!PulseOutput) // pulse output complete |
{ |
if(TCCR2A & (1<<COM2A0)) // we had a low pulse |
{ |
TCCR2A &= ~(1<<COM2A0);// make a high pulse |
RemainingPulse = MINSERVOPULSE + SERVORANGE/2; // center position ~ 1.5ms |
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ServoNickOffset = (ServoNickOffset * 3 + (int16_t)Parameter_ServoNickControl * MULTIPLYER) / 4; // lowpass offset |
ServoNickValue = ServoNickOffset; // offset (Range from 0 to 255 * 3 = 765) |
if(EE_Parameter.ServoCompInvert & 0x01) |
{ // inverting movement of servo |
ServoNickValue += (int16_t)( ( (int32_t)EE_Parameter.ServoNickComp * MULTIPLYER * (IntegralNick / 128L ) ) / (256L) ); |
} |
else |
{ // non inverting movement of servo |
ServoNickValue -= (int16_t)( ( (int32_t)EE_Parameter.ServoNickComp * MULTIPLYER * (IntegralNick / 128L ) ) / (256L) ); |
} |
// limit servo value to its parameter range definition |
if(ServoNickValue < ((int16_t)EE_Parameter.ServoNickMin * MULTIPLYER) ) |
{ |
ServoNickValue = (int16_t)EE_Parameter.ServoNickMin * MULTIPLYER; |
} |
else |
if(ServoNickValue > ((int16_t)EE_Parameter.ServoNickMax * MULTIPLYER) ) |
{ |
ServoNickValue = (int16_t)EE_Parameter.ServoNickMax * MULTIPLYER; |
} |
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RemainingPulse += ServoNickValue - (256 / 2) * MULTIPLYER; // shift ServoNickValue to center position |
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ServoNickValue /= MULTIPLYER; |
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// range servo pulse width |
if(RemainingPulse > MAXSERVOPULSE ) RemainingPulse = MAXSERVOPULSE; // upper servo pulse limit |
else if(RemainingPulse < MINSERVOPULSE ) RemainingPulse = MINSERVOPULSE; // lower servo pulse limit |
// accumulate time for correct update rate |
ServoFrameTime = RemainingPulse; |
} |
else // we had a high pulse |
{ |
TCCR2A |= (1<<COM2A0); // make a low pulse |
RemainingPulse = PPM_FRAMELEN - ServoFrameTime; |
} |
// set pulse output active |
PulseOutput = 1; |
} |
} // EOF Nick servo state machine |
else |
{ |
//----------------------------------------------------- |
// PPM state machine, onboard demultiplexed by HEF4017 |
//----------------------------------------------------- |
if(!PulseOutput) // pulse output complete |
{ |
if(TCCR2A & (1<<COM2A0)) // we had a low pulse |
{ |
TCCR2A &= ~(1<<COM2A0);// make a high pulse |
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if(ServoIndex == 0) // if we are at the sync gap |
{ |
RemainingPulse = PPM_FRAMELEN - ServoFrameTime; // generate sync gap by filling time to full frame time |
ServoFrameTime = 0; // reset servo frame time |
HEF4017R_ON; // enable HEF4017 reset |
} |
else // servo channels |
{ |
RemainingPulse = MINSERVOPULSE + SERVORANGE/2; // center position ~ 1.5ms |
switch(ServoIndex) // map servo channels |
{ |
case 1: // Nick Compensation Servo |
ServoNickOffset = (ServoNickOffset * 3 + (int16_t)Parameter_ServoNickControl * MULTIPLYER) / 4; // lowpass offset |
ServoNickValue = ServoNickOffset; // offset (Range from 0 to 255 * 3 = 765) |
if(EE_Parameter.ServoCompInvert & 0x01) |
{ // inverting movement of servo |
ServoNickValue += (int16_t)( ( (int32_t)EE_Parameter.ServoNickComp * MULTIPLYER * (IntegralNick / 128L ) ) / (256L) ); |
} |
else |
{ // non inverting movement of servo |
ServoNickValue -= (int16_t)( ( (int32_t)EE_Parameter.ServoNickComp * MULTIPLYER * (IntegralNick / 128L ) ) / (256L) ); |
} |
// limit servo value to its parameter range definition |
if(ServoNickValue < ((int16_t)EE_Parameter.ServoNickMin * MULTIPLYER) ) |
{ |
ServoNickValue = (int16_t)EE_Parameter.ServoNickMin * MULTIPLYER; |
} |
else |
if(ServoNickValue > ((int16_t)EE_Parameter.ServoNickMax * MULTIPLYER) ) |
{ |
ServoNickValue = (int16_t)EE_Parameter.ServoNickMax * MULTIPLYER; |
} |
RemainingPulse += ServoNickValue - (256 / 2) * MULTIPLYER; // shift ServoNickValue to center position |
ServoNickValue /= MULTIPLYER; |
break; |
case 2: // Roll Compensation Servo |
ServoRollOffset = (ServoRollOffset * 3 + (int16_t) Parameter_ServoRollControl * MULTIPLYER) / 4; // lowpass offset |
ServoRollValue = ServoRollOffset; // offset (Range from 0 to 255 * 3 = 765) |
if(EE_Parameter.ServoCompInvert & 0x02) |
{ // inverting movement of servo |
ServoRollValue += (int16_t)( ( (int32_t) EE_Parameter.ServoRollComp * MULTIPLYER * (IntegralRoll / 128L ) ) / (256L) ); |
} |
else |
{ // non inverting movement of servo |
ServoRollValue -= (int16_t)( ( (int32_t) EE_Parameter.ServoRollComp * MULTIPLYER * (IntegralRoll / 128L ) ) / (256L) ); |
} |
// limit servo value to its parameter range definition |
if(ServoRollValue < ((int16_t)EE_Parameter.ServoRollMin * MULTIPLYER) ) |
{ |
ServoRollValue = (int16_t)EE_Parameter.ServoRollMin * MULTIPLYER; |
} |
else |
if(ServoRollValue > ((int16_t)EE_Parameter.ServoRollMax * MULTIPLYER) ) |
{ |
ServoRollValue = (int16_t)EE_Parameter.ServoRollMax * MULTIPLYER; |
} |
RemainingPulse += ServoRollValue - (256 / 2) * MULTIPLYER; // shift ServoNickValue to center position |
ServoRollValue /= MULTIPLYER; |
//DebugOut.Analog[20] = ServoRollValue; |
break; |
case 3: // Arthur P: Shutter Servo including interval control over parameter 5 and 6. |
// 091114 Inserted same modification into v.0.76g code. |
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if(PPM_in[EE_Parameter.Kanalbelegung[K_POTI3]] < -32) |
{ |
// Set servo to null position, turning camera off. |
RemainingPulse = MINSERVOPULSE; |
} |
else |
{ |
// 090807: Arthur P.: Removed the shutter cycle parts as they may be impacting timing loops. |
// 091114 Added same changes into v.0.76g. |
// if(PPM_in[EE_Parameter.Kanalbelegung[K_POTI3]] > 32) |
// Middle position on a 3 position switch which runs from -127 to +127 |
// { |
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RemainingPulse = MINSERVOPULSE + SERVORANGE/2; |
// } |
// else |
// { |
// Cycle shutter servo between on and off depending upon CameraShutterCycleCounter |
// If CameraShutterCylce < 50 then default to continuous shoot. |
//if(CameraShutterCycle < 50 ) |
// { |
RemainingPulse = MINSERVOPULSE + SERVORANGE/2; |
// } |
// else |
// { |
// if(CameraShutterCycleCounter == CameraShutterCycle) |
// { |
// Shutter on |
// CameraShutterCycleCounter = 0; |
// RemainingPulse = MINSERVOPULSE + SERVORANGE/2; |
// } |
// else |
// { |
// Leave on for at least 24 cycles or 0.25 seconds to allow |
// the camera to properly trigger, turn off if past 0.25 sec. |
// For now this is actually set via para5 to allow for a long enough |
// shutter pulse for different cameras. Once it is clear what value |
// works, this can be changed to a hardcoded value. |
// if(CameraShutterCycleCounter>Parameter_UserParam5) |
// { |
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// RemainingPulse = MINSERVOPULSE; |
// } |
// CameraShutterCycleCounter++; |
// } |
// } |
// } |
} |
break; |
// 090807 Arthur P: Removed the output of the remaining channels as this just eats time and probably |
// does not have much of a function. Better to add specific outputs as needed. |
// default: // other servo channels |
// RemainingPulse += 2 * PPM_in[ServoIndex]; // add channel value, factor of 2 because timer 1 increments 3.2µs |
// break; |
} |
// range servo pulse width |
if(RemainingPulse > MAXSERVOPULSE ) RemainingPulse = MAXSERVOPULSE; // upper servo pulse limit |
else if(RemainingPulse < MINSERVOPULSE ) RemainingPulse = MINSERVOPULSE; // lower servo pulse limit |
// substract stop pulse width |
RemainingPulse -= PPM_STOPPULSE; |
// accumulate time for correct sync gap |
ServoFrameTime += RemainingPulse; |
} |
} |
else // we had a high pulse |
{ |
TCCR2A |= (1<<COM2A0); // make a low pulse |
// set pulsewidth to stop pulse width |
RemainingPulse = PPM_STOPPULSE; |
// accumulate time for correct sync gap |
ServoFrameTime += RemainingPulse; |
if(ServoActive && SenderOkay > 180) HEF4017R_OFF; // disable HEF4017 reset |
else HEF4017R_ON; |
ServoIndex++; // change to next servo channel |
if(ServoIndex > EE_Parameter.ServoNickRefresh) ServoIndex = 0; // reset to the sync gap |
} |
// set pulse output active |
PulseOutput = 1; |
} |
} // EOF PPM state machine |
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// General pulse output generator |
if(RemainingPulse > (255 + IRS_RUNTIME)) |
{ |
OCR2A = 255; |
RemainingPulse -= 255; |
} |
else |
{ |
if(RemainingPulse > 255) // this is the 2nd last part |
{ |
if((RemainingPulse - 255) < IRS_RUNTIME) |
{ |
OCR2A = 255 - IRS_RUNTIME; |
RemainingPulse -= 255 - IRS_RUNTIME; |
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} |
else // last part > ISR_RUNTIME |
{ |
OCR2A = 255; |
RemainingPulse -= 255; |
} |
} |
else // this is the last part |
{ |
OCR2A = RemainingPulse; |
RemainingPulse = 0; |
PulseOutput = 0; // trigger to stop pulse |
} |
} // EOF general pulse output generator |
} |