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Data carrier detection

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This commit is contained in:
Mark Qvist 2018-04-26 15:52:43 +02:00
parent 978800aaf9
commit be98b0d7f7
4 changed files with 92 additions and 10 deletions
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66
RNode_Firmware.ino
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@ -81,8 +81,6 @@ void update_radio_lock() {
}
void receiveCallback(int packet_size) {
led_rx_on();
uint8_t header = LoRa.read(); packet_size--;
uint8_t sequence = packetSequence(header);
bool ready = false;
@ -148,7 +146,6 @@ void receiveCallback(int packet_size) {
Serial.write(FEND);
read_len = 0;
}
led_rx_off();
}
void transmit(size_t size) {
@ -178,21 +175,22 @@ void transmit(size_t size) {
LoRa.endPacket();
led_tx_off();
LoRa.receive();
if (FLOW_CONTROL_ENABLED)
kiss_indicate_ready();
LoRa.receive();
} else {
kiss_indicate_error(ERROR_TXFAILED);
led_indicate_error(5);
}
if (FLOW_CONTROL_ENABLED)
kiss_indicate_ready();
}
void serialCallback(uint8_t sbyte) {
if (IN_FRAME && sbyte == FEND && command == CMD_DATA) {
IN_FRAME = false;
transmit(frame_len);
outbound_ready = true;
} else if (sbyte == FEND) {
IN_FRAME = true;
command = CMD_UNKNOWN;
@ -308,7 +306,61 @@ void serialCallback(uint8_t sbyte) {
}
}
void updateModemStatus() {
uint8_t status = LoRa.modemStatus();
last_status_update = millis();
if (status & SIG_DETECT == 0x01) { stat_signal_detected = true; } else { stat_signal_detected = false; }
if (status & SIG_SYNCED == 0x01) { stat_signal_synced = true; } else { stat_signal_synced = false; }
if (status & RX_ONGOING == 0x01) { stat_rx_ongoing = true; } else { stat_rx_ongoing = false; }
if (stat_signal_detected || stat_signal_synced || stat_rx_ongoing) {
if (dcd_count < dcd_threshold) {
dcd_count++;
dcd = true;
} else {
dcd = true;
dcd_led = true;
}
} else {
if (dcd_count > 0) {
dcd_count--;
} else {
dcd_led = false;
}
dcd = false;
}
if (dcd_led) {
led_rx_on();
} else {
led_rx_off();
}
}
void checkModemStatus() {
if (millis()-last_status_update >= status_interval_ms) {
led_tx_on();
updateModemStatus();
led_tx_off();
}
}
void loop() {
if (radio_online) {
checkModemStatus();
if (outbound_ready) {
if (!dcd_waiting) updateModemStatus();
if (!dcd && !dcd_led) {
if (dcd_waiting) delay(lora_rx_turnaround_ms);
outbound_ready = false;
dcd_waiting = false;
transmit(frame_len);
} else {
dcd_waiting = true;
}
}
}
if (Serial.available()) {
char sbyte = Serial.read();
serialCallback(sbyte);