bool RegionEU433TxConfig( TxConfigParams_t* txConfig, int8_t* txPower, TimerTime_t* txTimeOnAir )
{
RadioModems_t modem;
int8_t phyDr = DataratesEU433[txConfig->Datarate];
int8_t txPowerLimited = LimitTxPower( txConfig->TxPower, Bands[Channels[txConfig->Channel].Band].TxMaxPower, txConfig->Datarate, ChannelsMask );
uint32_t bandwidth = GetBandwidth( txConfig->Datarate );
int8_t phyTxPower = 0;
// Calculate physical TX power
phyTxPower = RegionCommonComputeTxPower( txPowerLimited, txConfig->MaxEirp, txConfig->AntennaGain );
// Setup the radio frequency
Radio.SetChannel( Channels[txConfig->Channel].Frequency );
if( txConfig->Datarate == DR_7 )
{ // High Speed FSK channel
modem = MODEM_FSK;
Radio.SetTxConfig( modem, phyTxPower, 25000, bandwidth, phyDr * 1000, 0, 5, false, true, 0, 0, false, 3000 );
}
else
{
modem = MODEM_LORA;
Radio.SetTxConfig( modem, phyTxPower, 0, bandwidth, phyDr, 1, 8, false, true, 0, 0, false, 3e3 );
}
DBG_PRINTF("TX on freq %d Hz at DR %d\n\r", Channels[txConfig->Channel].Frequency, txConfig->Datarate);
// Setup maximum payload lenght of the radio driver
Radio.SetMaxPayloadLength( modem, txConfig->PktLen );
// Get the time-on-air of the next tx frame
*txTimeOnAir = Radio.TimeOnAir( modem, txConfig->PktLen );
*txPower = txConfig->TxPower;
return true;
}
bool RegionCN470ATxConfig( TxConfigParams_t *txConfig, int8_t *txPower, TimerTime_t *txTimeOnAir )
{
RadioModems_t modem;
uint32_t frequency;
uint16_t preambleLen;
bool iqInverted;
TimerTime_t curTime = TimerGetCurrentTime( );
int8_t phyDr = DataratesCN470A[txConfig->Datarate];
int8_t txPowerLimited = LimitTxPower( txConfig->TxPower, Bands[TxChannels[txConfig->Channel].Band].TxMaxPower,
txConfig->Datarate, ChannelsMask );
uint32_t bandwidth = GetBandwidth( txConfig->Datarate );
int8_t phyTxPower = 0;
// Calculate physical TX power
phyTxPower = RegionCommonComputeTxPower( txPowerLimited, txConfig->MaxEirp, txConfig->AntennaGain );
if (txConfig->NodeWorkMode == NODE_MODE_REPEATER) {
frequency = txConfig->RepeaterFrequency;
preambleLen = PreambleLenthCN470A[txConfig->Datarate];
iqInverted = true;
} else {
frequency = TxChannels[txConfig->Channel].Frequency;
preambleLen = 8;
iqInverted = false;
}
// Setup the radio frequency
Radio.SetChannel( frequency);
if ( txConfig->Datarate == DR_7 ) {
// High Speed FSK channel
modem = MODEM_FSK;
Radio.SetTxConfig( modem, phyTxPower, 25e3, bandwidth, phyDr * 1e3, 0, 5, false, true, 0, 0, false, 3e3 );
} else {
modem = MODEM_LORA;
Radio.SetTxConfig( modem, phyTxPower, 0, bandwidth, phyDr, 1, preambleLen, false, true, 0, 0, iqInverted, 3e3 );
}
// Setup maximum payload lenght of the radio driver
Radio.SetMaxPayloadLength( modem, txConfig->PktLen );
// Get the time-on-air of the next tx frame
*txTimeOnAir = Radio.TimeOnAir( modem, txConfig->PktLen );
*txPower = txConfig->TxPower;
DBG_LINKWAN("Tx, Band %d, Freq: %d,DR: %d, len: %d, duration %d, at %d\r\n",
TxFreqBandNum, frequency, txConfig->Datarate, txConfig->PktLen, *txTimeOnAir, curTime);
return true;
}
void RegionCN470AComputeRxWindowParameters( int8_t datarate, uint8_t minRxSymbols, uint32_t rxError,
RxConfigParams_t *rxConfigParams )
{
double tSymbol = 0.0;
rxConfigParams->Datarate = datarate;
rxConfigParams->Bandwidth = GetBandwidth( datarate );
if ( datarate == DR_7 ) {
// FSK
tSymbol = RegionCommonComputeSymbolTimeFsk( DataratesCN470A[datarate] );
} else {
// LoRa
tSymbol = RegionCommonComputeSymbolTimeLoRa( DataratesCN470A[datarate], BandwidthsCN470A[datarate] );
}
RegionCommonComputeRxWindowParameters( tSymbol, minRxSymbols, rxError, RADIO_WAKEUP_TIME,
&rxConfigParams->WindowTimeout, &rxConfigParams->WindowOffset );
}
void RegionEU433ComputeRxWindowParameters( int8_t datarate, uint8_t minRxSymbols, uint32_t rxError, RxConfigParams_t *rxConfigParams )
{
double tSymbol = 0.0;
uint32_t radioWakeUpTime;
rxConfigParams->Datarate = datarate;
rxConfigParams->Bandwidth = GetBandwidth( datarate );
if( datarate == DR_7 )
{ // FSK
tSymbol = RegionCommonComputeSymbolTimeFsk( DataratesEU433[datarate] );
}
else
{ // LoRa
tSymbol = RegionCommonComputeSymbolTimeLoRa( DataratesEU433[datarate], BandwidthsEU433[datarate] );
}
radioWakeUpTime = Radio.GetRadioWakeUpTime( );
RegionCommonComputeRxWindowParameters( tSymbol, minRxSymbols, rxError, radioWakeUpTime, &rxConfigParams->WindowTimeout, &rxConfigParams->WindowOffset );
}
bool RegionAU915TxConfig( TxConfigParams_t* txConfig, int8_t* txPower, TimerTime_t* txTimeOnAir )
{
int8_t phyDr = DataratesAU915[txConfig->Datarate];
int8_t txPowerLimited = LimitTxPower( txConfig->TxPower, Bands[Channels[txConfig->Channel].Band].TxMaxPower, txConfig->Datarate, ChannelsMask );
uint32_t bandwidth = GetBandwidth( txConfig->Datarate );
int8_t phyTxPower = 0;
// Calculate physical TX power
phyTxPower = RegionCommonComputeTxPower( txPowerLimited, txConfig->MaxEirp, txConfig->AntennaGain );
Radio.SetChannel( Channels[txConfig->Channel].Frequency );
Radio.SetMaxPayloadLength( MODEM_LORA, txConfig->PktLen );
Radio.SetTxConfig( MODEM_LORA, phyTxPower, 0, bandwidth, phyDr, 1, 8, false, true, 0, 0, false, 3e3 );
DBG_PRINTF("TX on freq %d Hz at DR %d\n\r", Channels[txConfig->Channel].Frequency, txConfig->Datarate);
*txTimeOnAir = Radio.TimeOnAir( MODEM_LORA, txConfig->PktLen );
*txPower = txPowerLimited;
return true;
}
void RegionEU433ComputeRxWindowParameters( int8_t datarate, uint8_t minRxSymbols, uint32_t rxError, RxConfigParams_t *rxConfigParams )
{
double tSymbol = 0.0;
uint32_t radioWakeUpTime;
// Get the datarate, perform a boundary check
rxConfigParams->Datarate = MIN( datarate, EU433_RX_MAX_DATARATE );
rxConfigParams->Bandwidth = GetBandwidth( rxConfigParams->Datarate );
if( rxConfigParams->Datarate == DR_7 )
{ // FSK
tSymbol = RegionCommonComputeSymbolTimeFsk( DataratesEU433[rxConfigParams->Datarate] );
}
else
{ // LoRa
tSymbol = RegionCommonComputeSymbolTimeLoRa( DataratesEU433[rxConfigParams->Datarate], BandwidthsEU433[rxConfigParams->Datarate] );
}
radioWakeUpTime = Radio.GetRadioWakeUpTime( );
RegionCommonComputeRxWindowParameters( tSymbol, minRxSymbols, rxError, radioWakeUpTime, &rxConfigParams->WindowTimeout, &rxConfigParams->WindowOffset );
}
int main(int argc, char **argv) {
auto config = ParseCommandLine(argc, argv);
printf("%s\n", mila::version::PrintVersion().c_str());
auto mean_shift_initial =
mila::meanshift::parallel::MeanShiftImageProcessingProfiler(config.platform_id, config.device_id);
mean_shift_initial.Run(config.input_file, config.output_file, config.bandwidth);
auto result = mean_shift_initial.results().at(mean_shift_initial.main_result());
auto duration = mean_shift_initial.results().at(mean_shift_initial.main_duration());
printf("Initial results\n");
printf("%s: %f\n", mean_shift_initial.main_result().c_str(), result);
printf("Duration [us]: %f\n", duration);
printf("Platform: %s\n", mean_shift_initial.platform().getName().c_str());
printf("Device: %s\n", mean_shift_initial.device().getName().c_str());
printf("Input file: %s\n", config.input_file.c_str());
printf("Output file: %s\n", config.output_file.c_str());
printf("Bandwidth: %f\n", config.bandwidth);
auto results = std::vector<float>(config.number_of_iterations);
printf("Iterations\n");
for (size_t i = 0; i < config.number_of_iterations; ++i) {
auto mean_shift = mila::meanshift::parallel::MeanShiftImageProcessingProfiler(config.platform_id, config.device_id);
mean_shift.Run(config.input_file, config.output_file, config.bandwidth);
result = mean_shift.results().at(mean_shift.main_result());
duration = mean_shift.results().at(mean_shift.main_duration());
printf("Iteration: %lu\n", i);
printf("Host statistics:\n");
printf("Duration: %f us, %s: %f, Bandwidth: %f GB/s\n", duration, mean_shift.main_result().c_str(), result, mean_shift.GetBandwidth());
printf("OpenCL statistics:\n");
printf("%s\n", mean_shift.GetOpenCLStatisticsAsString().c_str());
results[i] = duration;
}
printf("Statistics\n");
printf("Mean: %f\n", mila::utils::Mean(results));
printf("Median: %f\n", mila::utils::Median(results));
printf("Variance: %f\n", mila::utils::Variance(results));
printf("Standard Deviation: %f\n", mila::utils::StandardDeviation(results));
printf("Coefficient of Variation: %f\n", mila::utils::CoefficientOfVariation(results));
return 0;
}