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Rev 885 Rev 886
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#include <inttypes.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include "eeprom.h"
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#include "analog.h"
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#include "main.h"
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#include "main.h"
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#include "fc.h"
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#ifdef USE_KILLAGREG
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#include "mm3.h"
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10
#endif
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#if !defined (USE_KILLAGREG) && !defined (USE_NAVICTRL)
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#include "mk3mag.h"
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#endif
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volatile uint16_t CountMilliseconds = 0;
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16
volatile uint8_t UpdateMotor = 0;
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volatile uint16_t cntKompass = 0;
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volatile uint16_t BeepTime = 0;
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volatile uint16_t BeepModulation = 0xFFFF;
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#ifdef USE_NAVICTRL
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volatile uint8_t SendSPI = 0;
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#endif
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volatile unsigned int CountMilliseconds = 0;
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volatile static unsigned int tim_main;
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volatile unsigned char UpdateMotor = 0;
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volatile unsigned int cntKompass = 0;
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volatile unsigned int beeptime = 0;
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volatile unsigned char SendSPI = 0;
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unsigned int BeepMuster = 0xffff;
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int ServoValue = 0;
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enum {
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  STOP             = 0,
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  CK               = 1,
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  CK8              = 2,
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  CK64             = 3,
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  CK256            = 4,
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  CK1024           = 5,
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  T0_FALLING_EDGE  = 6,
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  T0_RISING_EDGE   = 7
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};
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SIGNAL (SIG_OVERFLOW0)    // 8kHz
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{
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    static unsigned char cnt_1ms = 1,cnt = 0;
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    unsigned char pieper_ein = 0;
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//    TCNT0 -= 250;//TIMER_RELOAD_VALUE;
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   if(SendSPI) SendSPI--;
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   if(!cnt--)
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32
    {
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     cnt = 9;
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     cnt_1ms++;
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     cnt_1ms %= 2;
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     if(!cnt_1ms) UpdateMotor = 1;
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     CountMilliseconds++;
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/*****************************************************/
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/*              Initialize Timer 0                   */
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/*****************************************************/
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    }  
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// timer 0 is used for the PWM generation to control the offset voltage at the air pressure sensor
39
 
31
// Its overflow interrupt routine is used to generate the beep signal and the flight control motor update rate
40
     if(beeptime > 1)
32
void TIMER0_Init(void)
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{
41
        {
34
        uint8_t sreg = SREG;
42
        beeptime--;      
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        // disable all interrupts before reconfiguration
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        cli();
43
        if(beeptime & BeepMuster)
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44
         {
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        // configure speaker port as output
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        if(BoardRelease == 10)
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          pieper_ein = 1;
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        {       // Speaker at PD2
46
         }
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                DDRD |= (1<<DDD2);
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         else pieper_ein = 0;
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                PORTD &= ~(1<<PORTD2);
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        }
44
        }
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     else
45
        else
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      {
46
        {       // Speaker at PC7
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       pieper_ein = 0;
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                DDRC |= (1<<DDC7);
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                PORTC &= ~(1<<PORTC7);
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        }
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       BeepMuster = 0xffff;
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        // set PB3 and PB4 as output for the PWM used as aoffset for the pressure sensor
53
      }
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        DDRB |= (1<<DDB4)|(1<<DDB3);
54
 
53
        PORTB &= ~((1<<PORTB4)|(1<<PORTB3));
55
 
54
 
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        if(BoardRelease == 10)
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     if(pieper_ein)
56
        {
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        {
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                DDRD |= (1<<DDD2);
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          if(PlatinenVersion == 10) PORTD |= (1<<2); // Speaker an PORTD.2
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                PORTD &= ~(1<<PORTD2);
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          else                      PORTC |= (1<<7); // Speaker an PORTC.7
59
 
60
        }
60
        }
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     else  
61
        else
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        {
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                DDRC |= (1<<DDC7);
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                PORTC &= ~(1<<PORTC7);
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        }
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        // Timer/Counter 0 Control Register A
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        // Waveform Generation Mode is Fast PWM (Bits WGM02 = 0, WGM01 = 1, WGM00 = 1)
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    // Clear OC0A on Compare Match, set OC0A at BOTTOM, noninverting PWM (Bits COM0A1 = 1, COM0A0 = 0)
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    // Clear OC0B on Compare Match, set OC0B at BOTTOM, (Bits COM0B1 = 1, COM0B0 = 0)
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72
    TCCR0A &= ~((1<<COM0A0)|(1<<COM0B0));
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73
    TCCR0A |= (1<<COM0A1)|(1<<COM0B1)|(1<<WGM01)|(1<<WGM00);
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        // Timer/Counter 0 Control Register B
62
        {
76
 
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77
        // set clock devider for timer 0 to SYSKLOCK/8 = 20MHz / 8 = 2.5MHz
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78
        // i.e. the timer increments from 0x00 to 0xFF with an update rate of 2.5 MHz
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79
        // hence the timer overflow interrupt frequency is 2.5 MHz / 256 = 9.765 kHz
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80
 
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81
        // divider 8 (Bits CS02 = 0, CS01 = 1, CS00 = 0)
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82
        TCCR0B &= ~((1<<FOC0A)|(1<<FOC0B)|(1<<WGM02));
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83
    TCCR0B = (TCCR0B & 0xF8)|(0<<CS02)|(1<<CS01)|(0<<CS00);
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84
 
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85
        // initialize the Output Compare Register A & B used for PWM generation on port PB3 & PB4
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86
    OCR0A =  0;  // for PB3
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87
    OCR0B = 120; // for PB4
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88
 
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89
        // init Timer/Counter 0 Register
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90
    TCNT0 = 0;
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91
 
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92
        // Timer/Counter 0 Interrupt Mask Register
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93
        // enable timer overflow interrupt only
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94
        TIMSK0 &= ~((1<<OCIE0B)|(1<<OCIE0A));
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95
        TIMSK0 |= (1<<TOIE0);
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96
 
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        SREG = sreg;
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}
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99
 
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100
 
63
         if(PlatinenVersion == 10) PORTD &= ~(1<<2);
101
 
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/*****************************************************/
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103
/*          Interrupt Routine of Timer 0             */
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104
/*****************************************************/
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         else                      PORTC &= ~(1<<7);
105
ISR(TIMER0_OVF_vect)    // 9.765 kHz
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106
{
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107
    static uint8_t cnt_1ms = 1,cnt = 0;
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108
    uint8_t Beeper_On = 0;
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109
 
65
        }
110
#ifdef USE_NAVICTRL
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111
        if(SendSPI) SendSPI--; // if SendSPI is 0, the transmit of a byte via SPI bus to and from The Navicontrol is done
66
 
112
#endif
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113
 
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114
        if(!cnt--) // every 10th run (9.765kHz/10 = 976Hz)
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115
        {
67
 if(EE_Parameter.GlobalConfig & CFG_KOMPASS_AKTIV)
116
         cnt = 9;
68
 {
117
         cnt_1ms++;
69
  if(PINC & 0x10)
118
         cnt_1ms %= 2;
70
   {
119
         if(!cnt_1ms) UpdateMotor = 1; // every 2nd run (976Hz/2 = 488 Hz)
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120
         CountMilliseconds++; // increment millisecond counter
71
    cntKompass++;
121
        }
72
   }
122
 
73
  else
123
 
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124
        // beeper on if duration is not over
74
   {
125
        if(BeepTime)
75
    if((cntKompass) && (cntKompass < 362))
126
        {
76
    {
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127
           BeepTime--; // decrement BeepTime
77
     cntKompass += cntKompass / 41;
128
           if(BeepTime & BeepModulation) Beeper_On = 1;
78
     if(cntKompass > 10) KompassValue = cntKompass - 10; else KompassValue = 0;
129
           else Beeper_On = 0;
79
    }
130
        }
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131
        else // beeper off if duration is over
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132
        {
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133
           Beeper_On = 0;
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134
           BeepModulation = 0xFFFF;
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135
        }
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136
 
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        // if beeper is on
80
//     if(cntKompass < 10) cntKompass = 10;
138
        if(Beeper_On)
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139
        {
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140
                // set speaker port to high
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141
                if(BoardRelease == 10) PORTD |= (1<<PORTD2); // Speaker at PD2
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                else                   PORTC |= (1<<PORTC7); // Speaker at PC7
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143
        }
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//     KompassValue = (unsigned long)((unsigned long)(cntKompass-10)*720L + 1L) / 703L;
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        else // beeper is off
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     KompassRichtung = ((540 + KompassValue - KompassStartwert) % 360) - 180;
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        {
83
    cntKompass = 0;
146
                // set speaker port to low
84
   }
147
                if(BoardRelease == 10) PORTD &= ~(1<<PORTD2);// Speaker at PD2
85
 }
148
                else                   PORTC &= ~(1<<PORTC7);// Speaker at PC7
86
}
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87
 
149
        }
88
 
150
 
89
void Timer_Init(void)
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90
{
151
        // update compass value if this option is enabled in the settings
91
    tim_main = SetDelay(10);
152
        if(ParamSet.GlobalConfig & CFG_COMPASS_ACTIVE)
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153
        {
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154
        #ifdef USE_KILLAGREG
92
    TCCR0B = CK8;
155
                MM3_Update(); // read out mm3 board
93
    TCCR0A = (1<<COM0A1)|(1<<COM0B1)|3;//fast PWM
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94
    OCR0A =  0;
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    OCR0B = 120;
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96
    TCNT0 = (unsigned char)-TIMER_RELOAD_VALUE;  // reload
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97
    //OCR1  = 0x00;
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98
 
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99
    TCCR2A=(1<<COM2A1)|(1<<COM2A0)|3;
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100
    TCCR2B=(0<<CS20)|(1<<CS21)|(1<<CS22);
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101
   
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102
//    TIMSK2 |= _BV(TOIE2);
156
        #endif
103
TIMSK2 |= _BV(OCIE2A);
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104
 
157
        #if !defined (USE_KILLAGREG) && !defined (USE_NAVICTRL)
105
    TIMSK0 |= _BV(TOIE0);
158
                MK3MAG_Update(); // read out mk3mag pwm
106
    OCR2A = 10;
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107
    TCNT2 = 0;
159
        #endif
108
   
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109
}
160
        }
Line 110... Line 161...
110
 
161
}
111
// -----------------------------------------------------------------------
162
 
112
 
163
 
113
unsigned int SetDelay (unsigned int t)
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114
{
164
 
115
//  TIMSK0 &= ~_BV(TOIE0);
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116
  return(CountMilliseconds + t + 1);                                            
165
// -----------------------------------------------------------------------
Line 117... Line 166...
117
//  TIMSK0 |= _BV(TOIE0);
166
uint16_t SetDelay (uint16_t t)
118
}
167
{
119
 
168
  return(CountMilliseconds + t + 1);
120
// -----------------------------------------------------------------------
169
}
121
char CheckDelay(unsigned int t)
170
 
122
{
171
// -----------------------------------------------------------------------
123
//  TIMSK0 &= ~_BV(TOIE0);
172
int8_t CheckDelay(uint16_t t)
Line -... Line 173...
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173
{
124
  return(((t - CountMilliseconds) & 0x8000) >> 9);
174
  return(((t - CountMilliseconds) & 0x8000) >> 9); // check sign bit
125
//  TIMSK0 |= _BV(TOIE0);
175
}
126
}
176
 
127
 
177
// -----------------------------------------------------------------------
128
// -----------------------------------------------------------------------
178
void Delay_ms(uint16_t w)
129
void Delay_ms(unsigned int w)
179
{
Line 130... Line -...
130
{
-
 
131
 unsigned int akt;
-
 
132
 akt = SetDelay(w);
-
 
133
 while (!CheckDelay(akt));
-
 
134
}
-
 
135
 
-
 
136
void Delay_ms_Mess(unsigned int w)
-
 
137
{
-
 
138
 unsigned int akt;
-
 
139
 akt = SetDelay(w);
-
 
140
 while (!CheckDelay(akt)) ANALOG_ON;
-
 
141
}
-
 
142
 
-
 
143
// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                
-
 
144
//  Servo ansteuern
-
 
145
// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                
-
 
146
SIGNAL(SIG_OUTPUT_COMPARE2A)
-
 
147
{
-
 
148
  static unsigned char timer = 10;
-
 
149
 
-
 
150
  if(!timer--)  
-
 
151
    {
-
 
152
     TCCR2A=(1<<COM2A1)|(0<<COM2A0)|3;  
-
 
153
     ServoValue =  Parameter_ServoNickControl;
-
 
154
     if(EE_Parameter.ServoNickCompInvert & 0x01) ServoValue += ((long) EE_Parameter.ServoNickComp * (IntegralNick / 128)) / 512;
-
 
155
     else ServoValue -= ((long) EE_Parameter.ServoNickComp * (IntegralNick / 128)) / 512;
-