Thank you
Yes, i am using blue pill at transmitter end and receiver end. Yes i am using the driver for sx1262 from semtech.
By following way i am initializing
init_LoRa_parm();
sx126x_reset(&LoRa);
sx126x_init(&LoRa );
sx126x_set_dio2_as_rf_sw_ctrl(&LoRa, true);
sx126x_set_dio3_as_tcxo_ctrl(&LoRa, SX126X_TCXO_CTRL_1_8V, 0x00000F);
sx126x_get_device_errors(&LoRa, &errors);
printf("before STDBY_XOSC, Errors = 0x%X\r\n", errors);
sx126x_set_standby(&LoRa, SX126X_STANDBY_CFG_XOSC);
sx126x_clear_device_errors( &LoRa);
sx126x_get_device_errors(&LoRa, &errors);
printf("After STDBY_XOSC, Errors = 0x%X\r\n", errors);
Radio_init(&LoRa);
sx126x_clear_irq_status( &LoRa, SX126X_IRQ_ALL );
sx126x_set_dio_irq_params(
&LoRa, SX126X_IRQ_ALL,
SX126X_IRQ_TX_DONE | SX126X_IRQ_RX_DONE,
SX126X_IRQ_NONE, SX126X_IRQ_NONE );
sx126x_clear_irq_status( &LoRa, SX126X_IRQ_ALL );
and in main loop i am putting the following function
void on_tx_data(void)
{
sx126x_status_t status;
// Prepare data
for (int i = 0; i < 8; i++) {
tx_buf[i] = counter++;
}
// Write buffer with error checking
status = sx126x_write_buffer(&LoRa, 0, (const uint8_t*)tx_buf, 8);
if (status != SX126X_STATUS_OK) {
printf("Write buffer failed: %d\n", status);
return;
}
// Set TX mode with error checking
status = sx126x_set_tx(&LoRa, 0);
if (status != SX126X_STATUS_OK) {
printf("Set TX failed: %d\n", status);
return;
}
// Print transmitted data
printf("Sent: ");
for (int i = 0; i < 8; i++) {
printf("%d ", tx_buf[i]);
}
printf("\r\n");
}
where tx_buf is the global variable.
and
void init_LoRa_parm(void)
{
txdata[0] = 'M';
txdata[1] = 'L';
txdata[2] = 'o';
txdata[3] = 'R';
txdata[4] = 'a';
LoRa.BUSY_port = BUSY_GPIO_Port;
LoRa.BUSY_pin = BUSY_Pin;
LoRa.NSS_port = NSS_GPIO_Port;
LoRa.NSS_pin = NSS_Pin;
LoRa.RST_port = RST_GPIO_Port;
LoRa.RST_pin = RST_Pin;
LoRa.DIO1_port = DIO1_GPIO_Port;
LoRa.DIO1_pin = DIO1_Pin;
LoRa.hSPIx = &hspi1;
}
this is the initialization value.
By taking this guide me to transmit the data over SPI DMA mode.
