Modified lora.c: static void MlmeConfirm(MlmeConfirm_t *mlmeConfirm)

This modification allows the data rate of the device that was set before AT+JOIN to remain even after joining the network. Previously, the data rate of the device will be restored to the default data rate for the first AT+SEND attempt after joining.

Co-Authored-By: kygoh <gohkengyew@gmail.com>

Projects/B-L072Z-LRWAN1/Applications/LoRa/AT_Slave/LoRaWAN/App/src/lora.c

@@ -269,6 +269,7 @@ static void MlmeConfirm(MlmeConfirm_t *mlmeConfirm)
       {
         // Status is OK, node has joined the network
         LoRaMainCallbacks->LORA_HasJoined();
+        lora_config_tx_datarate_set(lora_config.TxDatarate);
 #ifdef LORAMAC_CLASSB_ENABLED
 #if defined( USE_DEVICE_TIMING )
         LORA_DeviceTimeReq();