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Rev 1152 Rev 1208
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    The UART parameters are
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    The UART parameters are
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    38400 Baud, 8-N-1
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    38400 Baud, 8-N-1
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    If you have any questions, feel free to send me an e-mail.
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Connection of DSL to SV1 of FC:
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( DSL Pin1 is on side of channel 4 )
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1. GND <--> pin 7 (GND)
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2. TXD <--> pin 3 (RXD1 Atmega644p)
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3. RXD <--> pin 4 (TXD1 Atmega644p) optional
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4. 5V  <--> pin 2 (5V)
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Do not connect the receiver via PPM-Sumsignal output the same time.
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Data are send at 38400baud8n1
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Data Frame: |0xFF|0xFF|0x1F|FREQALLOC|??|RSSI|VBAT|??|CRC|10|CH0D1|CH0D0|CH1D1|CH1D0|CRC| ...etc
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FREQALLOC = 35, 40, 72
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RSSI = 0.. 255 // Received signal strength indicator
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VBAT = 0...255 // supply voltage (0.0V.. 8.2V)
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Servo Pair:   |0x1X|CHXD1|CHXD0|CHX+1D1|CHX+1D0|CRC|
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X is channel index of 1 servo value
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D1D0 is servo value as u16 in range of 7373 (1ms) to 14745 (2ms)
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there are 8 channels submitted, i.e 4 servo pairs
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Frame examples with signel received
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FFFF 1F23F079A304AD 1036012B1E6F 122AFB2AECB2 142B4D2B4404 1636872B33CE
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FFFF 1F23F079A304AD 1036002B1F6F 122AFE2AEBB0 142B4B2B4406 1636872B33CE
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FFFF 1F23F079A304AD 1035FF2B226E 122AFC2AEAB3 142B4E2B4304 1636882B33CD
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FFFF 1F23F079A304AD 1036022B1E6E 122AFB2AEEB0 142B4A2B4506 1636872B33CE
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FFFF 1F23F079A304AD 1036022B1E6E 122AFE2AEBB0 142B4B2B4406 1636882B33CD
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FFFF 1F23F079A304AD 1036012B1E6F 122AFD2AEAB2 142B4E2B4403 1636862B33CF
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FFFF 1F23F079A304AD 1036032B1D6E 122AFD2AEBB1 142B4C2B4504 1636862B33CF
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Frame examples with no signal received
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FFFF 1F23F000A30426
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FFFF 1F23F000A30426
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FFFF 1F23F000A30426
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FFFF 1F23F000A30426
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FFFF 1F23F000A30426
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    If you have any questions, feel free to send me an e-mail.
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FFFF 1F23F000A30426
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FFFF 1F23F000A30426
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*/
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*/
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unsigned char paket_len      = 0;
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unsigned char paket_len      = 0;
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#define UART1_BAUDRATE 38400
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#define UART1_BAUDRATE 38400
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volatile uint8_t rcdsl_RSSI = 0;
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volatile uint8_t rcdsl_RSSI = 0;
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uint8_t rcdsl_battery=0;
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volatile uint8_t rcdsl_battery=0;
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uint8_t rcdsl_allocation=0;
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volatile uint8_t rcdsl_allocation=0;
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uint8_t data[6];
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volatile uint8_t data[6];
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typedef union {
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typedef union {
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        uint16_t pos[2];
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        uint16_t pos[2];
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        uint8_t dat[4];
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        uint8_t dat[4];
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} servos_t;
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} servos_t;
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    UCSR1A = (1 << RXC1) | (1 << TXC1);
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    UCSR1A = (1 << RXC1) | (1 << TXC1);
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    // Reactive interrupts, if they were active before
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    // Reactive interrupts, if they were active before
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    SREG = sreg;
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    SREG = sreg;
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    printf("\n\rUART 1 initialized.");
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}
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}
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void rcdsl_new_signal(uint8_t channel, int16_t signal)
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void rcdsl_new_signal(uint8_t channel, int16_t signal)
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// This function is called, when a new servo signal is properly received.
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// This function is called, when a new servo signal is properly received.
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// Parameters: servo  - servo number (0-9)
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// Parameters: servo  - servo number (0-9)
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//             signal - servo signal between 7373 (1ms) and 14745 (2ms)
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//             signal - servo signal between 7373 (1ms) and 14745 (2ms)
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{  
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{
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    static servos_t servos;
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    static servos_t servos;
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    // Look for status headers
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    // Look for status headers
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    if ((data[0])==0x1F) {
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    if ((data[0])==0x1F) {
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        // Get frequency allocation
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        // Get frequency allocation
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        rcdsl_allocation = data[0+1];
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        rcdsl_allocation = data[0+1];
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        // Get signal quality
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        // Get signal quality
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        rcdsl_RSSI = data[2+1];
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        rcdsl_RSSI = data[2+1];
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        SenderOkay = (212 * (uint16_t) rcdsl_RSSI) / 128; // have to be scaled approx. by a factor of 1.66 to get 200 at full level
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        if(SenderOkay > 255) SenderOkay = 255;
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        // Get voltage of battery supply
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        // Get voltage of battery supply
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        rcdsl_battery = data[3+1];
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        rcdsl_battery = data[3+1];
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    }
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    }
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