main.cpp

00001 // License: Revised BSD License, see LICENSE.TXT, (c)2015 Semtech
00002 
00003 #include "mbed.h"
00004 #include "lmic.h"
00005 #include "debug.h"
00006 
00007 #define LORAWAN_NET_ID (uint32_t) 0x00000000
00008 // TODO: enter device address below, for TTN just set ???
00009 #define LORAWAN_DEV_ADDR (uint32_t) 0x5A480???
00010 #define LORAWAN_ADR_ON 1
00011 #define LORAWAN_CONFIRMED_MSG_ON 1
00012 #define LORAWAN_APP_PORT 3//15
00013 
00014 static uint8_t NwkSKey[] = {
00015     // TODO: enter network, or use TTN default
00016     // e.g. for 2B7E151628AED2A6ABF7158809CF4F3C =>
00017     0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, 
00018     0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C
00019 };
00020 
00021 static uint8_t ArtSKey[] = {
00022     // TODO: enter application key, or use TTN default
00023     // e.g. for 2B7E151628AED2A6ABF7158809CF4F3C =>
00024     0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, 
00025     0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C
00026 };
00027 
00028 osjob_t initjob;
00029 osjob_t sendFrameJob;
00030 u1_t n = 0;
00031 
00032 void os_getArtEui (uint8_t *buf) {} // ignore
00033 void os_getDevEui (uint8_t *buf) {} // ignore
00034 void os_getDevKey (uint8_t *buf) {} // ignore
00035 
00036 void onSendFrame (osjob_t* j) {
00037     const char* message = "Hello"; // ASCII only
00038     int frameLength = strlen(message); // keep it < 32
00039     for (int i = 0; i < frameLength; i++) {
00040         LMIC.frame[i] = message[i];
00041     }
00042     int result = LMIC_setTxData2(LORAWAN_APP_PORT, LMIC.frame, 
00043         frameLength, LORAWAN_CONFIRMED_MSG_ON); // calls onEvent()
00044 }
00045 
00046 void onInit (osjob_t* j) {
00047     LMIC_reset();
00048     LMIC_setAdrMode(LORAWAN_ADR_ON);
00049     LMIC_setDrTxpow(DR_SF12, 14);
00050     LMIC_setSession(LORAWAN_NET_ID, LORAWAN_DEV_ADDR, NwkSKey, ArtSKey);
00051     onSendFrame(NULL);
00052 }
00053 
00054 void onEvent (ev_t ev) { // called by lmic.cpp, see also oslmic.h
00055     debug_event(ev);
00056     if (ev == EV_TXCOMPLETE) {
00057         os_setCallback(&sendFrameJob, onSendFrame);
00058     }
00059 }
00060 
00061 int main (void) {
00062     debug_str("main\r\n");
00063     os_init();
00064     os_setCallback(&initjob, onInit);
00065     os_runloop(); // blocking
00066 }