Data type to represent a LoRaWAN packet header. More...

Detailed Description

Data type to represent a LoRaWAN packet header.

     This definition includes MHDR and FHDR in the same structure.
     The structure of the header is as follows:

                     1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
|Mtype| RFU |Maj|           LoRaWAN Address                   ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
...             | Frame Control |         Frame Counter         |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

See also: LoRaWAN spcefication, section 4

Definition at line 74 of file hdr.h.

#include <hdr.h>

Data Fields
uint8_t	mt_maj
	message type and major version

le_uint32_t	addr
	32 bit LoRaWAN address

uint8_t	fctrl
	frame control

le_uint16_t	fcnt
	frame counter

Field Documentation

◆ addr

le_uint32_t lorawan_hdr_t::addr

32 bit LoRaWAN address

Definition at line 88 of file hdr.h.

◆ fcnt

le_uint16_t lorawan_hdr_t::fcnt

frame counter

Definition at line 90 of file hdr.h.

◆ fctrl

uint8_t lorawan_hdr_t::fctrl

frame control

Definition at line 89 of file hdr.h.

◆ mt_maj

uint8_t lorawan_hdr_t::mt_maj

message type and major version

The message type are the 3 most significant bytes and the major version are the 2 less significant bytes. There are 3 bytes in the middle reserved for future usage. This module provides helper functions to set and get:

Definition at line 87 of file hdr.h.

The documentation for this struct was generated from the following file:

sys/include/net/lorawan/hdr.h