How to initiate LoRa and Transmit - Receive data through LoRa in B-L072Z-LRWAN1. I am using UART and USB to transmit and receive data earlier. Now I wanted to do this through LoRa, but I have no clue about this, if anyone help it would be useful.

[Kranthi Reddy]

..

[vchau.2]

Download STM32CubeExpansion_LRWAN_V2.1.0 firmware. and customize the firmware as per your requirement

[Kranthi Reddy]

Do we have to configure LoRa in .ioc? If we have to configure, what to configure? I tried including LoRa libraries in my main.c file but its showing error as "Unresolved Inclusion". How to configure LoRa or how to install libraries related to it, in STM32CubeExpansion_LRWAN_V2.1.0 there is no .h file to copy from there but code is getting executed, when i try to customize that code my costomized code is showing error, so it would be better in understanding if someone says about configuration of LoRa in .ioc configurations?

[vchau.2]

No, NO .ioc file in this project, You have to implement your code in existing code.

let me know "what configuration you want to change in LoRa"

[Kranthi Reddy]

I want to configure B-L072Z-LRWAN1 Board-1 to transmit data through USB device only(CDC) and one another board-2 to receive data, if board-2 after receiving data, if it send some data then board-1(which is connected to PC) have to receive it.

[FBard.2]

Hello.

I am sorry. But i don't understand how to set the Lora (and not Lorawan) configuration to transmit a simple Hello World with the STRKT01 board.

It's a pity, i did not succeed with the pong ping (or reverse) program. As it mentioned the subghz_phy. and i did not find it in the fp-atr-Lora software.

In my opinion, i have to search in the SX1276 and the radio library.

In radio -> with the RadioModems_t struct :

• Set modem Lora
• Set Tx Transmission

and after that use the -> ( *Send )( uint8_t *buffer, uint8_t size );

Maybe i took it to simple.

Is someone can help me on this ?

Regards

[Tesla DeLorean]

The older library, materially something along the lines of...

 // GPIOs and related peripherals, etc
 HW_Init();
 
 // Radio initialization
 RadioEvents.TxDone = OnTxDone;
 RadioEvents.RxDone = OnRxDone;
 RadioEvents.TxTimeout = OnTxTimeout;
 RadioEvents.RxTimeout = OnRxTimeout;
 RadioEvents.RxError = OnRxError;
 
 Radio.Init(&RadioEvents);
 
 Radio.SetChannel(RF_FREQUENCY);
 
 Radio.SetTxConfig(MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
 LORA_SPREADING_FACTOR, LORA_CODINGRATE,
 LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
 true, 0, 0, LORA_IQ_INVERSION_ON, 3000);
 
 Radio.SetRxConfig(MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
 LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
 LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON,
 0, true, 0, 0, LORA_IQ_INVERSION_ON, true);
 
 while(1)
 {
 // Management Loop
 ..
 
Handle States
 case IDLE::
 
 Radio.Send(Buffer, BufferSize); // When Idle
 
 case TX:
 case TX_TIMEOUT:
 case LOWPOWER:
 
Handle LowPower
 }