Used NVStore to keep lora device keys and added a boostrap mode

main.cpp

@@ -4,6 +4,50 @@
 #include "lorawan/LoRaWANInterface.h"
 #include "lorawan/system/lorawan_data_structures.h"
 #include "mbed.h"
+#include "nvstore.h"
+
+#define NVKEY_DEVICE_EUI 1
+#define NVKEY_APP_EUI    2
+#define NVKEY_APP_KEY    3
+
+#if MBED_CONF_APP_MODE_BOOTSTRAP
+
+const static uint8_t dev_eui[] = MBED_CONF_LORA_DEVICE_EUI;
+const static uint8_t app_eui[] = MBED_CONF_LORA_APPLICATION_EUI;
+const static uint8_t app_key[] = MBED_CONF_LORA_APPLICATION_KEY;
+
+int main(void) {
+    int rc;
+    uint16_t key;
+    uint16_t rsize;
+    uint8_t test[8];
+
+    // NVStore is a sigleton, get its instance
+    NVStore &nvstore = NVStore::get_instance();
+
+    rc = nvstore.init();
+    printf("Init NVStore : %d\n", rc);
+    rc = nvstore.reset();
+    printf("Reset NVStore : %d\n", rc);
+
+    key = NVKEY_DEVICE_EUI;
+    nvstore.set(key, sizeof(dev_eui), dev_eui);
+    key = NVKEY_APP_EUI;
+    nvstore.set(key, sizeof(app_eui), app_eui);
+    key = NVKEY_APP_KEY;
+    nvstore.set(key, sizeof(app_key), app_key);
+
+    while(1) {
+        printf("Bootstrap done\n");
+        wait(1);
+    }
+}
+
+#else // MBED_CONF_APP_MODE_BOOTSTRAP
+
+static uint8_t dev_eui[] = MBED_CONF_LORA_DEVICE_EUI;
+static uint8_t app_eui[] = MBED_CONF_LORA_APPLICATION_EUI;
+static uint8_t app_key[] = MBED_CONF_LORA_APPLICATION_KEY;
 
 #if MBED_CONF_APP_DHT_ENABLED
 #include "DHT.h"
@@ -72,6 +116,32 @@ HX711 loadcell(MBED_CONF_APP_HX711_DATA, MBED_CONF_APP_HX711_CLK);
 
 int main(void) {
     lorawan_status_t retcode;
+    lorawan_connect_t connect;
+    int rc;
+    uint16_t key;
+    uint16_t readsize;
+
+    connect.connect_type = LORAWAN_CONNECTION_OTAA;
+
+    // NVStore is a sigleton, get its instance
+    NVStore &nvstore = NVStore::get_instance();
+
+    if (nvstore.init() != NVSTORE_SUCCESS) {
+        debug("\r\n NVStore initialization failed! \r\n");
+        return -1;
+    }
+
+    key = NVKEY_DEVICE_EUI;
+    nvstore.get(key, sizeof(dev_eui), dev_eui, readsize);
+    key = NVKEY_APP_EUI;
+    nvstore.get(key, sizeof(app_eui), app_eui, readsize);
+    key = NVKEY_APP_KEY;
+    nvstore.get(key, sizeof(app_key), app_key, readsize);
+
+    connect.connection_u.otaa.app_eui = const_cast<uint8_t *>(app_eui);
+    connect.connection_u.otaa.dev_eui = const_cast<uint8_t *>(dev_eui);
+    connect.connection_u.otaa.app_key = const_cast<uint8_t *>(app_key);
+    connect.connection_u.otaa.nb_trials = MBED_CONF_LORA_NB_TRIALS;
 
 #if MBED_CONF_APP_HX711_ENABLED
     loadcell.powerDown();
@@ -109,7 +179,7 @@ int main(void) {
 
     debug("\r\n Adaptive data  rate (ADR) - Enabled \r\n");
 
-    retcode = lorawan.connect();
+    retcode = lorawan.connect(connect);
 
     if(retcode == LORAWAN_STATUS_OK || retcode == LORAWAN_STATUS_CONNECT_IN_PROGRESS) {
     } else {
@@ -247,3 +317,5 @@ static void lora_event_handler(lorawan_event_t event) {
             MBED_ASSERT("Unknown Event");
     }
 }
+
+#endif // MBED_APP_MODE_BOOTSTRAP

mbed_app.json

@@ -1,5 +1,6 @@
 {
     "config": {
+        "mode-bootstrap":      { "value": "false" },
         "tx-timer":            { "value": 600000 },
         "lora-radio": {
             "help": "Which radio to use (options: SX1272,SX1276)",

scripts/gen_images.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 # patterns
 DEVICEEUI=ABBAABBAABBAABBA