void Channel::init(int inv, int pin) {
//sensibility are used to approximate Time Pulse
//usefull on Middle position where there variation of value
sensibility = ERROR;
//Save Ping of channel
if (pin)
channelpin = pin; // channelpin[1] = 7, 7 is pin to read Channel 1
//if option inverted are enabled, store config into class Channel
if (inv != 1)
invert = inv;
//init Statics for current Channel
ChannelStatistic = Statistic();
ChannelStatistic.clear();
PositionStatistic = Statistic();
PositionStatistic.clear();
//start configuration of Channel clas with output of Reciever
configChannel();
}
static void rxfsk (u1_t rxmode) {
// only single rx (no continuous scanning, no noise sampling)
ASSERT( rxmode == RXMODE_SINGLE );
// select FSK modem (from sleep mode)
//writeReg(RegOpMode, 0x00); // (not LoRa)
opmodeFSK();
ASSERT((readReg(RegOpMode) & OPMODE_LORA) == 0);
// enter standby mode (warm up))
opmode(OPMODE_STANDBY);
// configure frequency
configChannel();
// set LNA gain
//writeReg(RegLna, 0x20|0x03); // max gain, boost enable
writeReg(RegLna, LNA_RX_GAIN);
// configure receiver
writeReg(FSKRegRxConfig, 0x1E); // AFC auto, AGC, trigger on preamble?!?
// set receiver bandwidth
writeReg(FSKRegRxBw, 0x0B); // 50kHz SSb
// set AFC bandwidth
writeReg(FSKRegAfcBw, 0x12); // 83.3kHz SSB
// set preamble detection
writeReg(FSKRegPreambleDetect, 0xAA); // enable, 2 bytes, 10 chip errors
// set sync config
writeReg(FSKRegSyncConfig, 0x12); // no auto restart, preamble 0xAA, enable, fill FIFO, 3 bytes sync
// set packet config
writeReg(FSKRegPacketConfig1, 0xD8); // var-length, whitening, crc, no auto-clear, no adr filter
writeReg(FSKRegPacketConfig2, 0x40); // packet mode
// set sync value
writeReg(FSKRegSyncValue1, 0xC1);
writeReg(FSKRegSyncValue2, 0x94);
writeReg(FSKRegSyncValue3, 0xC1);
// set preamble timeout
writeReg(FSKRegRxTimeout2, 0xFF);//(LMIC.rxsyms+1)/2);
// set bitrate
writeReg(FSKRegBitrateMsb, 0x02); // 50kbps
writeReg(FSKRegBitrateLsb, 0x80);
// set frequency deviation
writeReg(FSKRegFdevMsb, 0x01); // +/- 25kHz
writeReg(FSKRegFdevLsb, 0x99);
// configure DIO mapping DIO0=PayloadReady DIO1=NOP DIO2=TimeOut
writeReg(RegDioMapping1, MAP_DIO0_FSK_READY|MAP_DIO1_FSK_NOP|MAP_DIO2_FSK_TIMEOUT);
// enable antenna switch for RX
hal_pin_rxtx(0);
// now instruct the radio to receive
hal_waitUntil(LMIC.rxtime); // busy wait until exact rx time
opmode(OPMODE_RX); // no single rx mode available in FSK
}
// start LoRa receiver (time=LMIC.rxtime, timeout=LMIC.rxsyms, result=LMIC.frame[LMIC.dataLen])
static void rxlora (u1_t rxmode) {
// select LoRa modem (from sleep mode)
opmodeLora();
ASSERT((readReg(RegOpMode) & OPMODE_LORA) != 0);
// enter standby mode (warm up))
opmode(OPMODE_STANDBY);
// don't use MAC settings at startup
if(rxmode == RXMODE_RSSI) { // use fixed settings for rssi scan
writeReg(LORARegModemConfig1, RXLORA_RXMODE_RSSI_REG_MODEM_CONFIG1);
writeReg(LORARegModemConfig2, RXLORA_RXMODE_RSSI_REG_MODEM_CONFIG2);
} else { // single or continuous rx mode
// configure LoRa modem (cfg1, cfg2)
configLoraModem();
// configure frequency
configChannel();
}
// set LNA gain
writeReg(RegLna, LNA_RX_GAIN);
// set max payload size
writeReg(LORARegPayloadMaxLength, 64);
// use inverted I/Q signal (prevent mote-to-mote communication)
writeReg(LORARegInvertIQ, readReg(LORARegInvertIQ)|(1<<6));
// set symbol timeout (for single rx)
writeReg(LORARegSymbTimeoutLsb, LMIC.rxsyms);
// set sync word
writeReg(LORARegSyncWord, LORA_MAC_PREAMBLE);
// configure DIO mapping DIO0=RxDone DIO1=RxTout DIO2=NOP
writeReg(RegDioMapping1, MAP_DIO0_LORA_RXDONE|MAP_DIO1_LORA_RXTOUT|MAP_DIO2_LORA_NOP);
// clear all radio IRQ flags
writeReg(LORARegIrqFlags, 0xFF);
// enable required radio IRQs
writeReg(LORARegIrqFlagsMask, ~rxlorairqmask[rxmode]);
// enable antenna switch for RX
hal_pin_rxtx(0);
// now instruct the radio to receive
if (rxmode == RXMODE_SINGLE) { // single rx
hal_waitUntil(LMIC.rxtime); // busy wait until exact rx time
opmode(OPMODE_RX_SINGLE);
} else { // continous rx (scan or rssi)
opmode(OPMODE_RX);
}
}
static void txfsk () {
// select FSK modem (from sleep mode)
writeReg(RegOpMode, 0x10); // FSK, BT=0.5
ASSERT(readReg(RegOpMode) == 0x10);
// enter standby mode (required for FIFO loading))
opmode(OPMODE_STANDBY);
// set bitrate
writeReg(FSKRegBitrateMsb, 0x02); // 50kbps
writeReg(FSKRegBitrateLsb, 0x80);
// set frequency deviation
writeReg(FSKRegFdevMsb, 0x01); // +/- 25kHz
writeReg(FSKRegFdevLsb, 0x99);
// frame and packet handler settings
writeReg(FSKRegPreambleMsb, 0x00);
writeReg(FSKRegPreambleLsb, 0x05);
writeReg(FSKRegSyncConfig, 0x12);
writeReg(FSKRegPacketConfig1, 0xD0);
writeReg(FSKRegPacketConfig2, 0x40);
writeReg(FSKRegSyncValue1, 0xC1);
writeReg(FSKRegSyncValue2, 0x94);
writeReg(FSKRegSyncValue3, 0xC1);
// configure frequency
configChannel();
// configure output power
configPower();
// set the IRQ mapping DIO0=PacketSent DIO1=NOP DIO2=NOP
writeReg(RegDioMapping1, MAP_DIO0_FSK_READY|MAP_DIO1_FSK_NOP|MAP_DIO2_FSK_TXNOP);
// initialize the payload size and address pointers
writeReg(FSKRegPayloadLength, LMIC.dataLen+1); // (insert length byte into payload))
// download length byte and buffer to the radio FIFO
writeReg(RegFifo, LMIC.dataLen);
writeBuf(RegFifo, LMIC.frame, LMIC.dataLen);
// enable antenna switch for TX
hal_pin_rxtx(1);
// now we actually start the transmission
opmode(OPMODE_TX);
}
static void txlora () {
// select LoRa modem (from sleep mode)
//writeReg(RegOpMode, OPMODE_LORA);
opmodeLora();
ASSERT((readReg(RegOpMode) & OPMODE_LORA) != 0);
// enter standby mode (required for FIFO loading))
opmode(OPMODE_STANDBY);
// configure LoRa modem (cfg1, cfg2)
configLoraModem();
// configure frequency
configChannel();
// configure output power
writeReg(RegPaRamp, (readReg(RegPaRamp) & 0xF0) | 0x08); // set PA ramp-up time 50 uSec
configPower();
// set sync word
writeReg(LORARegSyncWord, LORA_MAC_PREAMBLE);
// set the IRQ mapping DIO0=TxDone DIO1=NOP DIO2=NOP
writeReg(RegDioMapping1, MAP_DIO0_LORA_TXDONE|MAP_DIO1_LORA_NOP|MAP_DIO2_LORA_NOP);
// clear all radio IRQ flags
writeReg(LORARegIrqFlags, 0xFF);
// mask all IRQs but TxDone
writeReg(LORARegIrqFlagsMask, ~IRQ_LORA_TXDONE_MASK);
// initialize the payload size and address pointers
writeReg(LORARegFifoTxBaseAddr, 0x00);
writeReg(LORARegFifoAddrPtr, 0x00);
writeReg(LORARegPayloadLength, LMIC.dataLen);
// download buffer to the radio FIFO
writeBuf(RegFifo, LMIC.frame, LMIC.dataLen);
// enable antenna switch for TX
hal_pin_rxtx(1);
// now we actually start the transmission
opmode(OPMODE_TX);
}
bool VideoMixer::configChannelEvent(Jzon::Node* params)
{
if (!params) {
return false;
}
if (!params->Has("id") || !params->Has("width") || !params->Has("height") ||
!params->Has("x") || !params->Has("y") || !params->Has("layer") ||
!params->Has("enabled") || !params->Has("opacity")) {
return false;
}
int id = params->Get("id").ToInt();
float width = params->Get("width").ToFloat();
float height = params->Get("height").ToFloat();
float x = params->Get("x").ToFloat();
float y = params->Get("y").ToFloat();
int layer = params->Get("layer").ToInt();
bool enabled = params->Get("enabled").ToBool();
float opacity = params->Get("opacity").ToFloat();
return configChannel(id, width, height, x, y, layer, enabled, opacity);
}