Lib Questions RAK11300

LPWAN Modules / EVBs
1

@beegee

For the RAK 11300 I have some qustions about your LoRaWAN library:

#define LORAWAN_CONFIRMED_MSG_ON 0

Does this need to be set to 1 to switch on. Does this only effect uplink or downlink as well?

#define LORAWAN_CERTIF_PORT 224 /**< LoRaWAN certification port */

What is this and should it be set to a different value as the note says not to use port 224?

#define LORAWAN_APP_PORT 2 /**< LoRaWAN application port,

This is the port data is sent to the device on.

#define LORAWAN_APP_DATA_MAX_SIZE 242 /**< LoRaWAN User application data buffer size*/

Is the RX or TX data buffer?

#define LORAWAN_DEFAULT_DATARATE DR_3 /**< LoRaWAN Default datarate*/

Default Data Rate - Is the full range supported. I.E 0-15

Later in your example you define:

#define LORAWAN_DATERATE DR_5

Does this overide the default DR_3 ?

#define LORAWAN_DEFAULT_TX_POWER TX_POWER_0 /**< LoRaWAN Default tx power*/

What is the range of values supported here and how does it map to output power?

Thank you

2

Please don’t mess around with these defines.There are API calls for these.The defines will be in most cases overruled by settings defined by the LoRaWAN region or by API calls.,

#define LORAWAN_CONFIRMED_MSG_ON 0

Use _lmh_error_status lmh_send(lmh_app_data_t *app_data, lmh_confirm is_txconfirmed); to send confirmed or unconfirmed. This is for uplinks only. For confirmed downlinks, you have to set it in the LNS when initiating the downlink.

#define LORAWAN_APP_PORT 2 /**< LoRaWAN application port,

Set the fPort in the structure lmh_app_data_t when sending data with lmh_error_status lmh_send(lmh_app_data_t *app_data, lmh_confirm is_txconfirmed);

/**@brief Application Data structure
 */
typedef struct
{
	uint8_t *buffer;  /**< point to the LoRa App data buffer */
	uint8_t buffsize; /**< LoRa App data buffer size */
	uint8_t port;	  /**< Port on which the LoRa App is data is sent/ received */
	int16_t rssi;
	uint8_t snr;
} lmh_app_data_t;

#define LORAWAN_APP_DATA_MAX_SIZE 242 /**< LoRaWAN User application data buffer size*/

It is TX or RX, it is not the buffer, just the maximum size.

#define LORAWAN_DEFAULT_DATARATE DR_3 /**< LoRaWAN Default datarate*/
#define LORAWAN_DATERATE DR_5

Is not used. Default datarate depends on LoRaWAN region. Used datarate is set with void lmh_datarate_set(uint8_t data_rate, bool enable_adr);

#define LORAWAN_DEFAULT_TX_POWER TX_POWER_0 /**< LoRaWAN Default tx power*/

Range depends on the LoRaWAN region, max is 0 (max power) to 10 (min power).
See TX Power by Region.
To change TX power use void lmh_tx_power_set(uint8_t tx_power);

#define LORAWAN_CERTIF_PORT 224 /**< LoRaWAN certification port */

Is only used for LoRa Alliance certification tests. Not used in daily usage.