Semtech / LMiC

IBM LoRa MAC in C (LMiC) mbed library port

Dependents:   lora-temperature LoRaWAN-lmic-app_HS LoRaWAN-lmic-app_huynh

LoRa WAN in C for sx1276 shield

Currently version 1.5

LoRaWAN network configuration for end-device

The following three pieces of information uniquely identifies end-device to network to allow over-the-air activation. These are stored in the end-device prior to join procedure.

AppEUI

Uniquely identifies application provider of end-device.

Least-significant byte first, 8 bytes, use reverse memcpy() to keep same order as shown on lora server.

example C code

static const u1_t APPEUI[8]  = { 0x01, 0x00, 0x01, 0x00, 0x00, 0x0C, 0x25, 0x00 };

This is copied into LMIC by os_getArtEui() callback function in application.

DevEUI

End-device ID, unique to each end-node.

Least-significant byte first, 8 bytes, use reverse memcpy() to keep same order as shown on lora server.

example C code

static const u1_t DEVEUI[8]  = { 0x00, 0x00, 0x00, 0x00, 0x01, 0x0C, 0x25, 0x00 };

This is copied into LMIC by os_getDevEui() callback function in application.

AppKey (aka DevKey)

128-bit (16byte) AES key.

example C code

static const u1_t DEVKEY[16] = { 0xe4, 0x72, 0x71, 0xc5, 0xf5, 0x30, 0xa9, 0x9f, 0xcf, 0xc4, 0x0e, 0xab, 0xea, 0xd7, 0x19, 0x42 };

This is copied into LMIC by os_getDevKey() callback function in application.

Using over-the air activation, the end-device (LMIC) performs a join procedure every time it starts for first time, or has lost session context information. When join procedure has successfully completed, the end-device will have a network session key (NwkSKey) and an application session key (AppSKey), which are used for encryption and message integrity check.

US915 configuration with http://us01-iot.semtech.com/

  • log in to server
  • click on Applications
  • find your application and click it
  • go to configure motes
  • to create a mote, you may enter a new DevEUI
    • you may copy-paste the 16byte application key from an already existing mote, if you desire.
CHNL_HYBRID125KHz500KHz
defined valuechannelschannel
00 to 764
18 to 1565
216 to 2366
324 to 3167
432 to 3968
540 to 4769
648 to 5570
756 to 6371
undef0 to 6364 to 71

Diff: hal.h

Revision:
1:d3b7bde3995c
Parent:
0:62d1edcc13d1
diff -r 62d1edcc13d1 -r d3b7bde3995c hal.h
--- a/hal.h	Thu Jan 22 12:50:49 2015 +0000
+++ b/hal.h	Tue Mar 31 13:36:56 2015 +0000
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2014 IBM Corporation.
+ * Copyright (c) 2014-2015 IBM Corporation.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -80,36 +80,4 @@
  */
 void hal_failed (void);
 
-//////////////////////////////////////////////////////////////////////
-#ifdef CFG_DEBUG
-void debug_init (void);
-void debug_led (u1_t val);
-void debug_char (u1_t c);
-void debug_hex (u1_t b);
-void debug_buf (const u1_t* buf, u2_t len);
-void debug_uint (u4_t v);
-void debug_str (const u1_t* str);
-void debug_event (int ev);
-void debug_val (const u1_t* label, u4_t val);
-#define DEBUG_INIT()   debug_init()
-#define DEBUG_LED(v)   debug_led(v)
-#define DEBUG_CHAR(c)  debug_char(c)
-#define DEBUG_HEX(b)   debug_hex(b)
-#define DEBUG_BUF(b,l) debug_buf(b,l)
-#define DEBUG_UINT(v)  debug_uint(v)
-#define DEBUG_STR(s)   debug_str(s)
-#define DEBUG_EVENT(e) debug_event(e)
-#define DEBUG_VAL(l,v) debug_val(l, v)
-#else // CFG_DEBUG
-#define DEBUG_INIT()
-#define DEBUG_LED(v)
-#define DEBUG_CHAR(c)
-#define DEBUG_HEX(b)
-#define DEBUG_BUF(b,l)
-#define DEBUG_UINT(v)
-#define DEBUG_STR(s)
-#define DEBUG_EVENT(e)
-#define DEBUG_VAL(l,v)
-#endif // CFG_DEBUG
-
 #endif // _hal_hpp_