bool LoRaPHYUS915::tx_config(tx_config_params_t* config, int8_t* tx_power,
lorawan_time_t* tx_toa)
{
int8_t phy_dr = datarates_US915[config->datarate];
int8_t tx_power_limited = limit_tx_power(config->tx_power,
bands[channels[config->channel].band].max_tx_pwr,
config->datarate);
uint32_t bandwidth = get_bandwidth(config->datarate);
int8_t phy_tx_power = 0;
// Calculate physical TX power
phy_tx_power = compute_tx_power( tx_power_limited, US915_DEFAULT_MAX_ERP, 0 );
_radio->lock();
_radio->set_channel(channels[config->channel].frequency);
_radio->set_tx_config(MODEM_LORA, phy_tx_power, 0, bandwidth, phy_dr, 1, 8,
false, true, 0, 0, false, 3000);
// Setup maximum payload lenght of the radio driver
_radio->set_max_payload_length(MODEM_LORA, config->pkt_len);
// Get the time-on-air of the next tx frame
*tx_toa = _radio->time_on_air(MODEM_LORA, config->pkt_len);
_radio->unlock();
*tx_power = tx_power_limited;
return true;
}
void LoRaPHYUS915Hybrid::set_tx_cont_mode(cw_mode_params_t* params, uint32_t given_frequency)
{
(void)given_frequency;
int8_t tx_power_limited = limit_tx_power(params->tx_power,
bands[channels[params->channel].band].max_tx_pwr,
params->datarate);
int8_t phy_tx_power = 0;
uint32_t frequency = channels[params->channel].frequency;
// Calculate physical TX power
phy_tx_power = compute_tx_power(tx_power_limited, US915_HYBRID_DEFAULT_MAX_ERP, 0);
_radio->lock();
_radio->set_tx_continuous_wave(frequency, phy_tx_power, params->timeout);
_radio->unlock();
}