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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1171 | hbuss | 1 | /*####################################################################################### |
| 2 | Decodieren eines RC Summen Signals oder Spektrum Empfänger-Satellit |
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| 3 | #######################################################################################*/ |
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| 4 | |||
| 1426 | ingob | 5 | #include "Spektrum.h" |
| 1171 | hbuss | 6 | #include "main.h" |
| 1506 | holgerb | 7 | |
| 1320 | hbuss | 8 | unsigned char SpektrumTimer = 0; |
| 1171 | hbuss | 9 | |
| 2185 | holgerb | 10 | // Achtung: RECEIVER_SPEKTRUM_DX7EXP oder RECEIVER_SPEKTRUM_DX8EXP wird in der main.h gesetzt |
| 1928 | holgerb | 11 | #if defined (RECEIVER_SPEKTRUM_DX7EXP) || defined (RECEIVER_SPEKTRUM_DX8EXP) |
| 2185 | holgerb | 12 | unsigned char s_excnt = 0; // Bitcounter for Spektrum-Expander |
| 1680 | holgerb | 13 | unsigned char s_exparity = 0; // Parity Bit for Spektrum-Expander |
| 2185 | holgerb | 14 | signed char s_exdata[11]; // Data for Spektrum-Expander |
| 2543 | holgerb | 15 | #endif |
| 2185 | holgerb | 16 | |
| 17 | void s_update(unsigned char channel, signed int value) // Channel-Diff numbercrunching and finally assign new stickvalue to PPM_in |
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| 18 | { |
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| 19 | if(SenderOkay >= 180) PPM_diff[channel] = ((value - PPM_in[channel]) / 3) * 3; |
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| 20 | else PPM_diff[channel] = 0; |
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| 2590 | holgerb | 21 | if(value > 127) value = 127; else if(value < -127) value = -127; |
| 2185 | holgerb | 22 | PPM_in[channel] = value; |
| 23 | } |
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| 24 | |||
| 1171 | hbuss | 25 | //############################################################################ |
| 26 | // USART1 initialisation from killagreg |
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| 1424 | ingob | 27 | void SpektrumUartInit(void) |
| 1171 | hbuss | 28 | //############################################################################ |
| 29 | { |
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| 1680 | holgerb | 30 | // -- Start of USART1 initialisation for Spekturm seriell-mode |
| 31 | // USART1 Control and Status Register A, B, C and baud rate register |
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| 32 | uint8_t sreg = SREG; |
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| 1928 | holgerb | 33 | |
| 1680 | holgerb | 34 | uint16_t ubrr = (uint16_t) ((uint32_t) SYSCLK/(8 * 115200) - 1); |
| 1928 | holgerb | 35 | |
| 1680 | holgerb | 36 | // disable all interrupts before reconfiguration |
| 37 | cli(); |
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| 38 | // disable RX-Interrupt |
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| 39 | UCSR1B &= ~(1 << RXCIE1); |
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| 40 | // disable TX-Interrupt |
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| 41 | UCSR1B &= ~(1 << TXCIE1); |
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| 42 | // disable DRE-Interrupt |
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| 43 | UCSR1B &= ~(1 << UDRIE1); |
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| 2309 | holgerb | 44 | /* |
| 1680 | holgerb | 45 | // set direction of RXD1 and TXD1 pins |
| 46 | // set RXD1 (PD2) as an input pin |
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| 47 | PORTD |= (1 << PORTD2); |
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| 48 | DDRD &= ~(1 << DDD2); |
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| 49 | // set TXD1 (PD3) as an output pin |
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| 50 | PORTD |= (1 << PORTD3); |
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| 51 | DDRD |= (1 << DDD3); |
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| 2309 | holgerb | 52 | */ |
| 1680 | holgerb | 53 | // USART0 Baud Rate Register |
| 54 | // set clock divider |
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| 55 | UBRR1H = (uint8_t)(ubrr>>8); |
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| 56 | UBRR1L = (uint8_t)ubrr; |
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| 57 | // enable double speed operation |
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| 58 | UCSR1A |= (1 << U2X1); |
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| 59 | // enable receiver and transmitter |
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| 60 | //UCSR1B = (1<<RXEN1)|(1<<TXEN1); |
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| 1391 | killagreg | 61 | |
| 1680 | holgerb | 62 | UCSR1B = (1<<RXEN1); |
| 63 | // set asynchronous mode |
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| 64 | UCSR1C &= ~(1 << UMSEL11); |
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| 65 | UCSR1C &= ~(1 << UMSEL10); |
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| 66 | // no parity |
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| 67 | UCSR1C &= ~(1 << UPM11); |
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| 68 | UCSR1C &= ~(1 << UPM10); |
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| 69 | // 1 stop bit |
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| 70 | UCSR1C &= ~(1 << USBS1); |
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| 71 | // 8-bit |
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| 72 | UCSR1B &= ~(1 << UCSZ12); |
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| 73 | UCSR1C |= (1 << UCSZ11); |
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| 74 | UCSR1C |= (1 << UCSZ10); |
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| 75 | // flush receive buffer explicit |
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| 76 | while(UCSR1A & (1<<RXC1)) UDR1; |
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| 77 | // enable RX-interrupts at the end |
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| 78 | UCSR1B |= (1 << RXCIE1); |
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| 79 | // -- End of USART1 initialisation |
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| 80 | // restore global interrupt flags |
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| 1928 | holgerb | 81 | |
| 1680 | holgerb | 82 | SREG = sreg; |
| 1171 | hbuss | 83 | return; |
| 84 | } |
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| 1391 | killagreg | 85 | |
| 1171 | hbuss | 86 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 87 | // + Copyright (c) Rainer Walther |
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| 88 | // + RC-routines from original MK rc.c (c) H&I |
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| 89 | // + Useful infos from Walter: http://www.rcgroups.com/forums/showthread.php?t=714299&page=2 |
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| 90 | // + only for non-profit use |
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| 91 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 92 | // |
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| 93 | // 20080808 rw Modified for Spektrum AR6100 (PPM) |
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| 94 | // 20080823 rw Add Spektrum satellite receiver on USART1 (644P only) |
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| 95 | // 20081213 rw Add support for Spektrum DS9 Air-Tx-Module (9 channels) |
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| 96 | // Replace AR6100-coding with original composit-signal routines |
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| 97 | // |
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| 98 | // --- |
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| 99 | // Entweder Summensignal ODER Spektrum-Receiver anschließen. Nicht beides gleichzeitig betreiben! |
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| 100 | // Binding is not implemented. Bind with external Receiver. |
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| 101 | // Servo output J3, J4, J5 not serviced |
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| 102 | // |
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| 103 | // Anschuß Spektrum Receiver |
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| 1680 | holgerb | 104 | // Orange: 3V von der FC (keinesfalls an 5V anschließen!) |
| 105 | // Schwarz: GND |
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| 106 | // Grau: RXD1 (Pin 3) auf 10-Pol FC-Stecker |
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| 1171 | hbuss | 107 | // |
| 108 | // --- |
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| 109 | // Satellite-Reciever connected on USART1: |
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| 110 | // |
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| 111 | // DX7/DX6i: One data-frame at 115200 baud every 22ms. |
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| 112 | // DX7se: One data-frame at 115200 baud every 11ms. |
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| 1680 | holgerb | 113 | // byte1: unknown |
| 114 | // byte2: unknown |
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| 115 | // byte3: and byte4: channel data (FLT-Mode) |
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| 116 | // byte5: and byte6: channel data (Roll) |
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| 117 | // byte7: and byte8: channel data (Nick) |
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| 118 | // byte9: and byte10: channel data (Gier) |
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| 119 | // byte11: and byte12: channel data (Gear Switch) |
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| 120 | // byte13: and byte14: channel data (Gas) |
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| 121 | // byte15: and byte16: channel data (AUX2) |
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| 1171 | hbuss | 122 | // |
| 123 | // DS9 (9 Channel): One data-frame at 115200 baud every 11ms, alternating frame 1/2 for CH1-7 / CH8-9 |
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| 124 | // 1st Frame: |
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| 1680 | holgerb | 125 | // byte1: unknown |
| 126 | // byte2: unknown |
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| 127 | // byte3: and byte4: channel data |
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| 128 | // byte5: and byte6: channel data |
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| 129 | // byte7: and byte8: channel data |
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| 130 | // byte9: and byte10: channel data |
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| 131 | // byte11: and byte12: channel data |
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| 132 | // byte13: and byte14: channel data |
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| 133 | // byte15: and byte16: channel data |
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| 1171 | hbuss | 134 | // 2nd Frame: |
| 1680 | holgerb | 135 | // byte1: unknown |
| 136 | // byte2: unknown |
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| 137 | // byte3: and byte4: channel data |
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| 138 | // byte5: and byte6: channel data |
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| 139 | // byte7: and byte8: 0xffff |
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| 140 | // byte9: and byte10: 0xffff |
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| 141 | // byte11: and byte12: 0xffff |
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| 142 | // byte13: and byte14: 0xffff |
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| 143 | // byte15: and byte16: 0xffff |
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| 1171 | hbuss | 144 | // |
| 145 | // Each channel data (16 bit= 2byte, first msb, second lsb) is arranged as: |
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| 146 | // |
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| 147 | // Bits: F 0 C3 C2 C1 C0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 |
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| 148 | // |
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| 149 | // 0 means a '0' bit |
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| 150 | // F: 1 = indicates beginning of 2nd frame for CH8-9 (DS9 only) |
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| 151 | // C3 to C0 is the channel number. 0 to 9 (4 bit, as assigned in the transmitter) |
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| 152 | // D9 to D0 is the channel data (10 bit) 0xaa..0x200..0x356 for 100% transmitter-travel |
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| 153 | // |
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| 154 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 155 | |||
| 1322 | hbuss | 156 | #define MIN_FRAMEGAP 68 // 7ms |
| 157 | #define MAX_BYTEGAP 3 // 310us |
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| 1320 | hbuss | 158 | |
| 1419 | ingob | 159 | |
| 1171 | hbuss | 160 | //############################################################################ |
| 1481 | holgerb | 161 | // Wird im UART-Interrupt aufgerufen |
| 1171 | hbuss | 162 | //############################################################################ |
| 1419 | ingob | 163 | void SpektrumParser(unsigned char c) |
| 1171 | hbuss | 164 | { |
| 1320 | hbuss | 165 | static unsigned char Sync=0, FrameCnt=0, ByteHigh=0, ReSync=1, Frame2=0; |
| 1680 | holgerb | 166 | unsigned int Channel, index = 0; |
| 167 | signed int signal = 0, tmp; |
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| 168 | int bCheckDelay; |
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| 169 | // c = UDR1; // get data byte |
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| 170 | if(ReSync == 1) |
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| 171 | { |
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| 172 | // wait for beginning of new frame |
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| 173 | ReSync = 0; |
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| 174 | SpektrumTimer = MIN_FRAMEGAP; |
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| 175 | FrameCnt = 0; |
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| 176 | Sync = 0; |
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| 177 | ByteHigh = 0; |
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| 178 | } |
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| 1171 | hbuss | 179 | else |
| 1391 | killagreg | 180 | { |
| 1680 | holgerb | 181 | if(!SpektrumTimer) bCheckDelay = 1; else bCheckDelay = 0;//CheckDelay(FrameTimer); |
| 182 | if ( Sync == 0 ) |
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| 183 | { |
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| 184 | if(bCheckDelay) |
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| 185 | { |
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| 186 | // nach einer Pause von mind. 7ms erstes Sync-Character gefunden |
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| 187 | // Zeichen ignorieren, da Bedeutung unbekannt |
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| 188 | Sync = 1; |
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| 189 | FrameCnt ++; |
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| 190 | SpektrumTimer = MAX_BYTEGAP; |
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| 191 | } |
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| 192 | else |
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| 193 | { |
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| 194 | // Zeichen kam vor Ablauf der 7ms Sync-Pause |
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| 195 | // warten auf erstes Sync-Zeichen |
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| 196 | SpektrumTimer = MIN_FRAMEGAP; |
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| 197 | FrameCnt = 0; |
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| 198 | Sync = 0; |
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| 199 | ByteHigh = 0; |
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| 200 | } |
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| 201 | } |
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| 202 | else if((Sync == 1) && !bCheckDelay) |
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| 203 | { |
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| 204 | // zweites Sync-Character ignorieren, Bedeutung unbekannt |
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| 205 | Sync = 2; |
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| 206 | FrameCnt ++; |
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| 207 | SpektrumTimer = MAX_BYTEGAP; |
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| 208 | } |
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| 209 | else if((Sync == 2) && !bCheckDelay) |
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| 210 | { |
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| 211 | SpektrumTimer = MAX_BYTEGAP; |
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| 212 | // Datenbyte high |
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| 213 | ByteHigh = c; |
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| 214 | if (FrameCnt == 2) |
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| 215 | { |
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| 216 | // is 1st Byte of Channel-data |
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| 217 | // Frame 1 with Channel 1-7 comming next |
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| 218 | Frame2 = 0; |
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| 219 | if(ByteHigh & 0x80) |
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| 220 | { |
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| 221 | // DS9: Frame 2 with Channel 8-9 comming next |
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| 222 | Frame2 = 1; |
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| 223 | } |
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| 224 | } |
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| 225 | Sync = 3; |
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| 226 | FrameCnt ++; |
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| 227 | } |
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| 228 | else if((Sync == 3) && !bCheckDelay) |
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| 229 | { |
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| 230 | // Datenbyte low |
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| 231 | // High-Byte for next channel comes next |
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| 232 | SpektrumTimer = MAX_BYTEGAP; |
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| 233 | Sync = 2; |
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| 234 | FrameCnt ++; |
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| 235 | Channel = ((unsigned int)ByteHigh << 8) | c; |
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| 236 | if(EE_Parameter.Receiver == RECEIVER_SPEKTRUM) |
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| 237 | { |
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| 238 | signal = Channel & 0x3ff; |
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| 239 | signal -= 0x200; // Offset, range 0x000..0x3ff? |
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| 240 | signal = signal/3; // scaling to fit PPM resolution |
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| 241 | index = (ByteHigh >> 2) & 0x0f; |
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| 242 | } |
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| 243 | else |
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| 244 | if(EE_Parameter.Receiver == RECEIVER_SPEKTRUM_HI_RES) |
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| 245 | { |
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| 246 | signal = Channel & 0x7ff; |
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| 247 | signal -= 0x400; // Offset, range 0x000..0x7ff? |
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| 248 | signal = signal/6; // scaling to fit PPM resolution |
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| 249 | index = (ByteHigh >> 3) & 0x0f; |
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| 1928 | holgerb | 250 | } |
| 1680 | holgerb | 251 | else |
| 252 | //if(EE_Parameter.Receiver == RECEIVER_SPEKTRUM_LOW_RES) |
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| 253 | { |
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| 254 | signal = Channel & 0x3ff; |
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| 255 | signal -= 360; // Offset, range 0x000..0x3ff? |
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| 256 | signal = signal/2; // scaling to fit PPM resolution |
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| 257 | index = (ByteHigh >> 2) & 0x0f; |
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| 258 | } |
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| 1391 | killagreg | 259 | |
| 1680 | holgerb | 260 | index++; |
| 261 | if(index < 13) |
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| 262 | { |
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| 263 | // Stabiles Signal |
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| 1928 | holgerb | 264 | #if defined (RECEIVER_SPEKTRUM_DX7EXP) || defined (RECEIVER_SPEKTRUM_DX8EXP) |
| 2185 | holgerb | 265 | if (index == 2) index = 4; // Analog channel reassigment (2 <-> 4) for logical numbering (1,2,3,4) |
| 1928 | holgerb | 266 | else if (index == 4) index = 2; |
| 1506 | holgerb | 267 | #endif |
| 2011 | holgerb | 268 | if(abs(signal - PPM_in[index]) < 6) |
| 269 | { |
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| 2185 | holgerb | 270 | if(EE_Parameter.FailsafeChannel == 0 || PPM_in[EE_Parameter.FailsafeChannel] < 100) // forces Failsafe if the receiver doesn't have 'signal loss' on Failsafe |
| 271 | { |
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| 2011 | holgerb | 272 | if(SenderOkay < 200) SenderOkay += 10; |
| 273 | else |
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| 274 | { |
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| 1928 | holgerb | 275 | SenderOkay = 200; |
| 276 | TIMSK1 &= ~_BV(ICIE1); // disable PPM-Input |
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| 2011 | holgerb | 277 | } |
| 2185 | holgerb | 278 | } |
| 279 | } |
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| 1928 | holgerb | 280 | tmp = (3 * (PPM_in[index]) + signal) / 4; |
| 281 | if(tmp > signal+1) tmp--; else |
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| 282 | if(tmp < signal-1) tmp++; |
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| 283 | |||
| 284 | #ifdef RECEIVER_SPEKTRUM_DX7EXP |
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| 2185 | holgerb | 285 | if(index == 6) // FLIGHT-MODE - The channel used for our data uplink |
| 1928 | holgerb | 286 | { |
| 2185 | holgerb | 287 | if (signal > 100) // SYNC received |
| 1928 | holgerb | 288 | { |
| 2185 | holgerb | 289 | if (s_exdata[s_excnt] == 125) s_exparity = ~s_exparity; // Bit = 1 -> Re-Invert parity bit |
| 1928 | holgerb | 290 | if ((s_excnt == 6 && ((s_exparity != 0 && s_exdata[s_excnt] == -125) || (s_exparity == 0 && s_exdata[s_excnt] == 125))) || (s_excnt == 9 && ((s_exparity == 0 && s_exdata[s_excnt] == -125) || (s_exparity != 0 && s_exdata[s_excnt] == 125)))) // Parity check |
| 291 | { |
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| 2185 | holgerb | 292 | if (s_exdata[1] == 125 && s_exdata[2] == -125) s_update(5,-125); // Reconstruct tripole Flight-Mode value (CH5) |
| 293 | else if (s_exdata[1] == -125 && s_exdata[2] == -125) s_update(5,0); // Reconstruct tripole Flight-Mode value (CH5) |
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| 294 | else if (s_exdata[1] == -125 && s_exdata[2] == 125) s_update(5,125); // Reconstruct tripole Flight-Mode value (CH5) |
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| 295 | s_update(6,s_exdata[3]); // Elevator (CH6) |
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| 296 | s_update(11,s_exdata[4]); // Aileron (CH11) |
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| 297 | s_update(12,s_exdata[5]); // Rudder (CH12) |
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| 1680 | holgerb | 298 | |
| 2185 | holgerb | 299 | if (s_excnt == 9) // New Mode (12 Channels) |
| 1928 | holgerb | 300 | { |
| 2185 | holgerb | 301 | if (s_exdata[7] == 125) s_update(8,PPM_in[8]+5); // Hover Pitch UP (CH8) |
| 302 | if (s_exdata[8] == 125) s_update(8,PPM_in[8]-5); // Hover Pitch DN (CH8) |
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| 303 | if (PPM_in[8] < -125) PPM_in[8] = -125; // Range-Limit |
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| 304 | else if (PPM_in[8] > 125) PPM_in[8] = 125; // Range-Limit |
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| 305 | s_update(10,s_exdata[6]); // AUX2 (CH10) |
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| 1928 | holgerb | 306 | } |
| 307 | } |
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| 1680 | holgerb | 308 | |
| 2185 | holgerb | 309 | s_excnt = 0; // Reset bitcounter |
| 310 | s_exparity = 0; // Reset parity bit |
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| 1928 | holgerb | 311 | } |
| 1506 | holgerb | 312 | |
| 2185 | holgerb | 313 | if (signal < 10) s_exdata[++s_excnt] = -125; // Bit = 0 -> value = -125 (min) |
| 1928 | holgerb | 314 | if (s_excnt == 10) s_excnt = 0; // Overflow protection |
| 315 | if (signal < -100) |
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| 316 | { |
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| 2185 | holgerb | 317 | s_exdata[s_excnt] = 125; // Bit = 1 -> value = 125 (max) |
| 318 | s_exparity = ~s_exparity; // Bit = 1 -> Invert parity bit |
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| 1928 | holgerb | 319 | } |
| 1680 | holgerb | 320 | |
| 1928 | holgerb | 321 | } |
| 322 | |||
| 2185 | holgerb | 323 | if (index < 5 ) s_update(index,tmp); // Update normal potis (CH1-4) |
| 324 | else if (index == 5) s_update(7,signal); // Gear (CH7) |
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| 325 | else if (index == 7) s_update(9,signal); // Hover Throttle (CH9) |
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| 326 | |||
| 1928 | holgerb | 327 | #elif defined RECEIVER_SPEKTRUM_DX8EXP |
| 2185 | holgerb | 328 | if(index == 6) // FLIGHT-MODE - The channel used for our data uplink |
| 1928 | holgerb | 329 | { |
| 2185 | holgerb | 330 | if (signal > 100) // SYNC received |
| 1928 | holgerb | 331 | { |
| 332 | if (s_exdata[s_excnt] == 125) s_exparity = ~s_exparity; // Bit = 1 -> Re-Invert parity bit |
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| 333 | if (s_excnt == 9 && ((s_exparity == 0 && s_exdata[s_excnt] == -125) || (s_exparity != 0 && s_exdata[s_excnt] == 125))) // Parity check |
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| 334 | { |
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| 2185 | holgerb | 335 | if (s_exdata[1] == 125 && s_exdata[2] == -125) s_update(5,-125); // Reconstruct tripole Flight-Mode value (CH5) |
| 336 | else if (s_exdata[1] == -125 && s_exdata[2] == -125) s_update(5,0); // Reconstruct tripole Flight-Mode value (CH5) |
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| 337 | else if (s_exdata[1] == -125 && s_exdata[2] == 125) s_update(5,125); // Reconstruct tripole Flight-Mode value (CH5) |
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| 1928 | holgerb | 338 | |
| 2185 | holgerb | 339 | if (s_exdata[3] == 125 && s_exdata[6] == -125) s_update(6,125); // Reconstruct tripole Elev D/R value (CH6) |
| 340 | else if (s_exdata[3] == -125 && s_exdata[6] == -125) s_update(6,0); // Reconstruct tripole Elev D/R value (CH6) |
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| 341 | else if (s_exdata[3] == -125 && s_exdata[6] == 125) s_update(6,-125); // Reconstruct tripole Elev D/R value (CH6) |
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| 1928 | holgerb | 342 | |
| 343 | |||
| 2185 | holgerb | 344 | if (s_exdata[7] == 125 && s_exdata[8] == -125) s_update(9,-125); // Reconstruct tripole AIL D/R value (CH9) |
| 345 | else if (s_exdata[7] == -125 && s_exdata[8] == -125) s_update(9,0); // Reconstruct tripole AIL D/R value (CH9) |
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| 346 | else if (s_exdata[7] == -125 && s_exdata[8] == 125) s_update(9,125); // Reconstruct tripole AIL D/R value (CH9) |
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| 1928 | holgerb | 347 | |
| 2185 | holgerb | 348 | s_update(10,s_exdata[5]); // Gear (CH10) |
| 349 | s_update(12,s_exdata[4]); // Mix (CH12) |
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| 1928 | holgerb | 350 | } |
| 351 | |||
| 352 | s_excnt = 0; // Reset bitcounter |
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| 353 | s_exparity = 0; // Reset parity bit |
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| 354 | } |
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| 355 | |||
| 356 | if (signal < 10) s_exdata[++s_excnt] = -125; // Bit = 0 -> value = -125 (min) |
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| 357 | if (s_excnt == 10) s_excnt = 0; // Overflow protection |
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| 358 | if (signal < -100) |
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| 359 | { |
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| 360 | s_exdata[s_excnt] = 125; // Bit = 1 -> value = 125 (max) |
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| 361 | s_exparity = ~s_exparity; // Bit = 1 -> Invert parity bit |
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| 362 | } |
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| 363 | |||
| 364 | } |
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| 2185 | holgerb | 365 | |
| 366 | if (index < 5 ) s_update(index,tmp); // Update normal potis (CH1-4) |
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| 367 | else if (index == 7) s_update(7,signal); // R Trim (CH7) |
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| 368 | else if (index == 5) s_update(8,signal); // AUX2 (CH8) |
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| 369 | else if (index == 8) s_update(11,signal); // AUX3 (CH11) |
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| 370 | |||
| 371 | #else |
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| 1928 | holgerb | 372 | if(SenderOkay >= 180) PPM_diff[index] = ((tmp - PPM_in[index]) / 3) * 3; |
| 373 | else PPM_diff[index] = 0; |
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| 2590 | holgerb | 374 | if(tmp > 127) tmp = 127; else if(tmp < -127) tmp = -127; |
| 1928 | holgerb | 375 | PPM_in[index] = tmp; |
| 1506 | holgerb | 376 | #endif |
| 1928 | holgerb | 377 | } |
| 1506 | holgerb | 378 | else if(index > 17) ReSync = 1; // hier stimmt was nicht: neu synchronisieren |
| 1680 | holgerb | 379 | } |
| 380 | else |
||
| 381 | { |
||
| 382 | // hier stimmt was nicht: neu synchronisieren |
||
| 383 | ReSync = 1; |
||
| 384 | FrameCnt = 0; |
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| 385 | Frame2 = 0; |
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| 386 | // new frame next, nach fruehestens 7ms erwartet |
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| 387 | SpektrumTimer = MIN_FRAMEGAP; |
||
| 388 | } |
||
| 1391 | killagreg | 389 | |
| 1680 | holgerb | 390 | // 16 Bytes eingetroffen -> Komplett |
| 391 | if(FrameCnt >= 16) |
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| 392 | { |
||
| 393 | // Frame complete |
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| 394 | if(Frame2 == 0) |
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| 395 | { |
||
| 396 | // Null bedeutet: Neue Daten |
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| 397 | // nur beim ersten Frame (CH 0-7) setzen |
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| 398 | if(!ReSync) NewPpmData = 0; |
||
| 399 | } |
||
| 400 | FrameCnt = 0; |
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| 401 | Frame2 = 0; |
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| 402 | Sync = 0; |
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| 403 | SpektrumTimer = MIN_FRAMEGAP; |
||
| 404 | } |
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| 1171 | hbuss | 405 | } |
| 1391 | killagreg | 406 | } |
| 1928 | holgerb | 407 | |
| 2185 | holgerb | 408 |