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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 716 | Nick666 | 1 | /*####################################################################################### |
| 2 | Decodieren eines RC Summen Signals |
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| 3 | #######################################################################################*/ |
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| 4 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 5 | // + Copyright (c) 04.2007 Holger Buss |
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| 6 | // + only for non-profit use |
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| 7 | // + www.MikroKopter.com |
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| 8 | // + see the File "License.txt" for further Informations |
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| 9 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 10 | |||
| 11 | #include "rc.h" |
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| 12 | #include "main.h" |
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| 13 | |||
| 14 | volatile int PPM_in[11]; |
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| 15 | volatile int PPM_diff[11]; // das diffenzierte Stick-Signal |
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| 16 | volatile unsigned char NewPpmData = 1; |
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| 17 | |||
| 18 | //############################################################################ |
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| 19 | //zum decodieren des PPM-Signals wird Timer1 mit seiner Input |
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| 20 | //Capture Funktion benutzt: |
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| 21 | void rc_sum_init (void) |
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| 22 | //############################################################################ |
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| 23 | { |
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| 753 | Nick666 | 24 | TCCR1B=(1<<CS11)|(1<<CS10)|(1<<ICES1)|(1<<ICNC1); //timer1 prescale 64 |
| 716 | Nick666 | 25 | |
| 26 | TIMSK1 |= _BV(ICIE1); |
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| 27 | AdNeutralGier = 0; |
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| 28 | AdNeutralRoll = 0; |
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| 29 | AdNeutralNick = 0; |
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| 30 | return; |
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| 31 | } |
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| 32 | |||
| 33 | //############################################################################ |
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| 34 | //Diese Routine startet und inizialisiert den Timer für RC |
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| 35 | SIGNAL(SIG_INPUT_CAPTURE1) |
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| 36 | //############################################################################ |
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| 37 | |||
| 38 | { |
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| 39 | static unsigned int AltICR=0; |
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| 40 | signed int signal = 0,tmp; |
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| 41 | static int index; |
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| 42 | |||
| 43 | signal = (unsigned int) ICR1 - AltICR; |
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| 44 | AltICR = ICR1; |
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| 45 | |||
| 753 | Nick666 | 46 | //Syncronisationspause? |
| 716 | Nick666 | 47 | if((signal > 1100) && (signal < 8000)) |
| 48 | { |
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| 49 | if(index >= 4) NewPpmData = 0; // Null bedeutet: Neue Daten |
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| 50 | index = 1; |
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| 51 | } |
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| 52 | else |
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| 53 | { |
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| 54 | if(index < 10) |
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| 55 | { |
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| 56 | if((signal > 250) && (signal < 687)) |
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| 57 | { |
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| 58 | signal -= 466; |
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| 59 | |||
| 60 | // Stabiles Signal |
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| 61 | if(abs(signal - PPM_in[index]) < 6) { if(SenderOkay < 200) SenderOkay += 10;} |
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| 62 | tmp = (3 * (PPM_in[index]) + signal) / 4; |
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| 63 | if(tmp > signal+1) tmp--; else |
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| 64 | if(tmp < signal-1) tmp++; |
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| 65 | if(SenderOkay >= 195) PPM_diff[index] = ((tmp - PPM_in[index]) / 3) * 3; |
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| 66 | else PPM_diff[index] = 0; |
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| 67 | PPM_in[index] = tmp; |
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| 68 | } |
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| 69 | index++; |
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| 753 | Nick666 | 70 | //if(index == 5) PORTD |= 0x20; else PORTD &= ~0x20; // Servosignal an J3 anlegen |
| 71 | //if(index == 6) PORTD |= 0x10; else PORTD &= ~0x10; // Servosignal an J4 anlegen |
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| 72 | //if(index == 7) PORTD |= 0x08; else PORTD &= ~0x08; // Servosignal an J5 anlegen |
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| 716 | Nick666 | 73 | } |
| 74 | } |
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| 75 | } |
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| 76 | |||
| 77 | |||
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| 80 |