Now using RxDutyCycle function of the sx126x

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tuxphone 2020-10-06 13:21:19 +02:00 committed by GitHub
parent dd6408f0df
commit 4d3ffc7b9d
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1 changed files with 66 additions and 44 deletions

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@ -1,10 +1,11 @@
#include <Arduino.h>
#include "config.h"
//#include "sx126x.h"
//#include "asr_board.c"
// CONFIGURATION:
// Change RegionCode, Frequency, Speed in config.h !
#define VERBOSE // define to SILENT to turn off serial messages
#define BLINK // define to NOBLINK to turn off LED signaling
#define NOBLINK // define to NOBLINK to turn off LED signaling
#define NO_OLED // define to NO_OLED to turn off display
// OLED supported for cubecell_board_Plus (HTCC-AB02) and cubecell_gps (HTCC-AB02S)
// :CONFIGURATION
@ -12,11 +13,15 @@
static MeshPacket thePacket;
static ChannelSettings ChanSet;
static RadioEvents_t RadioEvents;
static TimerEvent_t CheckRadio;
//static TimerEvent_t CheckRadio;
static uint32_t lastreceivedID = 0;
static uint32_t airTime;
static bool noTimer;
static uint32_t startTime = 0;
static uint32_t symbolTime;
static uint32_t sleepTime;
static uint32_t rxTime;
//static bool noTimer;
static bool flag_No_Cycle = false;
#ifndef NOBLINK
#include "CubeCell_NeoPixel.h"
@ -36,7 +41,6 @@ char str[32];
#endif
void setup() {
TimerInit( &CheckRadio, onCheckRadio );
#ifndef NO_OLED
pinMode(Vext,OUTPUT);
digitalWrite(Vext,LOW);
@ -52,7 +56,6 @@ void setup() {
#ifndef NO_OLED
display.init();
display.clear();
display.display();
display.setTextAlignment(TEXT_ALIGN_LEFT);
display.setFont(ArialMT_Plain_16);
display.drawString(0,0,"CC Repeater");
@ -60,13 +63,13 @@ void setup() {
#endif
#ifndef SILENT
Serial.begin(115200);
MSG("\nSetting up Radio:\n");
MSG("\n***********************************************************\nSetting up Radio:\n");
#endif
RadioEvents.TxDone = onTxDone;
RadioEvents.TxTimeout = onTxTimeout;
RadioEvents.RxDone = onRxDone;
Radio.Init( &RadioEvents );
Radio.Sleep();
//Radio.Sleep();
memcpy(ChanSet.name, MESHTASTIC_NAME, 12);
ChanSet.channel_num = hash( MESHTASTIC_NAME ) % regions[REGION].numChannels; // see config.h
ChanSet.tx_power = (regions[REGION].powerLimit == 0) ? TX_MAX_POWER : MIN(regions[REGION].powerLimit, TX_MAX_POWER) ;
@ -88,78 +91,80 @@ void setup() {
ChanSet.bandwidth = 0; // 125 kHz
ChanSet.coding_rate = 1; // = 4/5
ChanSet.spread_factor = 7;
symbolTime = 1024; // in micro seconds!
break;
}
case 1: { // medium range
ChanSet.bandwidth = 2; // 500 kHz
ChanSet.coding_rate = 1; // = 4/5
ChanSet.spread_factor = 7;
symbolTime = 256;
break;
}
case 2: { // long range
ChanSet.bandwidth = 5; // 31.25 kHz
ChanSet.coding_rate = 4; // = 4/8
ChanSet.spread_factor = 9;
symbolTime = 16384;
break;
}
case 3: { // very long range
ChanSet.bandwidth = 0; // 125 kHz
ChanSet.coding_rate = 4; // = 4/8
ChanSet.spread_factor = 12;
symbolTime = 32768;
break;
}
default:{ // default setting is medium range
ChanSet.bandwidth = 2; // 500 kHz
ChanSet.coding_rate = 1; // = 4/5
ChanSet.spread_factor = 7;
default:{ // default setting is very long range
ChanSet.bandwidth = 0; // 125 kHz
ChanSet.coding_rate = 4; // = 4/8
ChanSet.spread_factor = 12;
symbolTime = 32768;
}
}
airTime = sleepTime[MESHTASTIC_SPEED];
ConfigureRadio( ChanSet );
#ifndef SILENT
MSG("..done! Switch to Receive Mode.\n");
MSG("\n..done! Switch to Receive Mode.\n***********************************************************\n");
#endif
#ifndef NO_OLED
display.drawString(0,32, "Receive Mode..");
display.display();
#endif
Radio.Rx(0); // initial mode = receive
}
void onCheckRadio(void){
noTimer=false;
setRxCycle();
}
void loop( )
{
noTimer = true;
TimerSetValue( &CheckRadio, airTime ); // ms
TimerStart( &CheckRadio ); // onCheckRadio() will set noTimer to false
while (noTimer) lowPowerHandler( );
Radio.IrqProcess(); // handle events from LoRa
while ( !(Radio.GetStatus() == RF_IDLE) ) {
for (uint8_t i = 0; i<6; i++) lowPowerHandler();
Radio.IrqProcess();
}
setRxCycle();
}
void setRxCycle(void){
(flag_No_Cycle) ? Radio.Rx( 0 ) : Radio.SetRxDutyCycle( rxTime, sleepTime );
}
void onTxDone( void )
{
Radio.Sleep( );
#ifndef NOBLINK
LED.clear( );
LED.show( );
#endif
#ifndef SILENT
MSG(".done (%ims)! Switch to Receive Mode.\n", millis() - startTime );
MSG(".done (%ims)! Switch to Receive Mode.\n", millis() - startTime );
#endif
#ifndef NO_OLED
sprintf(str,"..done. RX Mode..");
display.drawString(42,53,str);
display.display();
#endif
Radio.Rx( 0 ); // switch to receive mode
Radio.Standby();
}
void onTxTimeout( void )
{
Radio.Sleep( );
#ifndef NOBLINK
LED.clear( );
LED.show( );
@ -172,12 +177,11 @@ void onTxTimeout( void )
display.drawString(42,53,str);
display.display();
#endif
Radio.Rx( 0 ); // switch to receive mode
Radio.Standby();
}
void onRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
{
if ( !(Radio.GetStatus() == RF_RX_RUNNING) ) Radio.Sleep( );
if ( size > MAX_PAYLOAD_LENGTH ) size = MAX_PAYLOAD_LENGTH;
if ( !(size > sizeof(PacketHeader)) ) {
#ifndef SILENT
@ -189,7 +193,7 @@ void onRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
LED.show();
#endif
Radio.Send( payload, size );
Radio.Rx( 0 );
Radio.Standby();
return;
}
PacketHeader * h = (PacketHeader *)payload;
@ -257,7 +261,6 @@ void onRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
display.drawString(0,53,str);
display.display();
#endif
Radio.Rx( 0 ); // switch to Receive Mode
}
}
@ -275,20 +278,39 @@ unsigned long hash(char *str)
void ConfigureRadio( ChannelSettings ChanSet )
{
uint32_t freq = (regions[REGION].freq + regions[REGION].spacing * ChanSet.channel_num)*1E6;
#ifndef SILENT
MSG("\nRegion is: %s", regions[REGION].name);
MSG(" TX power: %i\n", ChanSet.tx_power);
MSG("Setting frequency to %i Hz (meshtastic channel %i) .. \n",freq,ChanSet.channel_num );
MSG("Channel name is: %s .. \n", ChanSet.name );
MSG("Setting bandwidth to index %i ..\n",ChanSet.bandwidth);
MSG("Setting bandwidth to index %i (%ikHz)..\n", ChanSet.bandwidth, TheBandwidths[ChanSet.bandwidth]);
MSG("Setting CodeRate to index %i .. \n", ChanSet.coding_rate);
MSG("Setting SpreadingFactor to %i ..\n",ChanSet.spread_factor);
MSG("LowPowerTime: %ims ..\n", airTime);
#endif
Radio.SetChannel( freq );
Radio.SetTxConfig( MODEM_LORA, ChanSet.tx_power ,0 , ChanSet.bandwidth, ChanSet.spread_factor, ChanSet.coding_rate,
LORA_PREAMBLE_LENGTH, false, true, false, 0, false, 20000 );
Radio.SetRxConfig( MODEM_LORA, ChanSet.bandwidth, ChanSet.spread_factor, ChanSet.coding_rate, 0, LORA_PREAMBLE_LENGTH,
LORA_SYMBOL_TIMEOUT, false , 0, true, false, 0, false, true );
// SET UP RX_DUTY_CYCLE:
#define RXSYMBOLS 8 // Minimum count of symbols to reliably detect a LoRa preamble in rx mode. Should not be lower than 6.
if ( (LORA_PREAMBLE_LENGTH + 4.5) < (2 * RXSYMBOLS + 1 ) ) // 4.5 symbols are added to the user set preamble by the Sx1262
{
#ifndef SILENT
MSG("Short Preamble, will not use RxDutyCycle!\n");
#endif
flag_No_Cycle = true;
return;
}
uint32_t preambTime = symbolTime * (LORA_PREAMBLE_LENGTH + 4.5); // micro secs.
rxTime = 2 * RXSYMBOLS * symbolTime;
sleepTime = preambTime - rxTime - 1000; // SX1262 needs 500 micro sec for each sleep/wake transition
if (preambTime < (2* rxTime + sleepTime) ) flag_No_Cycle = true;
#ifndef SILENT
MSG("Will use RxDutyCycle: %s\n", (flag_No_Cycle) ? "YES" : "NO" );
MSG("RX time: %u micro s sleep time: %u micro s\n", rxTime, sleepTime);
#endif
rxTime = (rxTime * 125) >> 3; // * 15.768 micro s (125/8 is 15.768)
sleepTime = (sleepTime * 125) >> 3;
}