Revision 3:3b2db67b206e, committed 2018-12-16

Comitter:

screamer

Date:

Sun Dec 16 15:03:49 2018 +0000

Parent:

2:18e78518ee6f

Child:

4:dc1c3cb4d143

Commit message:

Updated main application for pin names and inline documentation

Changed in this revision

--- a/main.cpp	Sun Dec 16 15:03:28 2018 +0000
+++ b/main.cpp	Sun Dec 16 15:03:49 2018 +0000
@@ -26,19 +26,31 @@
 // This is great because things such as network operations are illegal in ISR, so updating a resource in a button's fall() function is not allowed
 EventQueue eventQueue;
 
-// Default network interface object
+// Default network interface object. Don't forget to change the WiFi SSID/password in mbed_app.json if you're using WiFi.
 NetworkInterface *net = NetworkInterface::get_default_instance();
 
-// Default block device
+// Default block device available on the target board
 BlockDevice *bd = BlockDevice::get_default_instance();
-SlicingBlockDevice sd(bd, 0, 2*1024*1024);
-LittleFileSystem fs("fs", &sd);
+
+#if COMPONENT_SD || COMPONENT_NUSD
+// Use FATFileSystem for SD card type blockdevices
+FATFileSystem fs("fs", bd);
+#else
+// Use LittleFileSystem for non-SD block devices to enable wear leveling and other functions
+LittleFileSystem fs("fs", bd);
+#endif
+
+// Fix for older versions of Mbed OS where BUTTON1 is undefined
+#if TARGET_UBLOX_C030
+#define BUTTON1 PC_13
+#endif
 
 // Default User button for GET example
 InterruptIn button(BUTTON1);
 // Default LED to use for PUT/POST example
 DigitalOut led(LED1);
 
+// Currently disabled until ADC sensors are introduced for U-blox targets.
 #ifdef ENABLE_SENSORS
 // Default temperature reading from microcontroller
 AnalogIn adc_temp(ADC_TEMP);
@@ -65,7 +77,7 @@
  * @param newValue Updated value for the resource
  */
 void led_put_callback(MbedCloudClientResource *resource, m2m::String newValue) {
-    printf("PUT received, new value: %s\n", newValue.c_str());
+    printf("PUT received. New value: %s\n", newValue.c_str());
     led = atoi(newValue.c_str());
 }
 
@@ -77,7 +89,7 @@
  * @param size Size of the body
  */
 void led_post_callback(MbedCloudClientResource *resource, const uint8_t *buffer, uint16_t size) {
-    printf("POST received. Going to blink LED pattern: %s\n", res_led->get_value().c_str());
+    printf("POST received. Payload: %s\n", res_led->get_value().c_str());
     led = atoi(res_led->get_value().c_str());
 }
 
@@ -104,7 +116,7 @@
  * @param endpoint Information about the registered endpoint such as the name (so you can find it back in portal)
  */
 void registered(const ConnectorClientEndpointInfo *endpoint) {
-    printf("Connected to Pelion Device Management. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str());
+    printf("Registered to Pelion Device Management. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str());
     endpointInfo = endpoint;
 }
 
@@ -126,17 +138,17 @@
 
 
 int main(void) {
-    printf("Starting Simple Pelion Device Management Client example\n");
+    printf("\nStarting Simple Pelion Device Management Client example\n");
 
     // If the User button is pressed ons start, then format storage.
+    DigitalIn *user_button = new DigitalIn(BUTTON1);
     const int PRESSED = 1;
-    DigitalIn *user_button = new DigitalIn(BUTTON1);
     if (user_button->read() == PRESSED) {
         printf("User button is pushed on start. Formatting the storage...\n");
-        int storage_status = fs.reformat(&sd);
+        int storage_status = fs.reformat(bd);
         if (storage_status != 0) {
-            if (sd.erase(0, sd.size()) == 0) {
-                if (fs.format(&sd) == 0) {
+            if (bd->erase(0, bd->size()) == 0) {
+                if (fs.format(bd) == 0) {
                     storage_status = 0;
                     printf("The storage reformatted successfully.\n");
                 }
@@ -145,10 +157,12 @@
         if (storage_status != 0) {
             printf("ERROR: Failed to reformat the storage (%d).\n", storage_status);
         }
+    } else {
+        printf("You can hold the user button during boot to format the storage and change the device identity.\n");
     }
 
     // Connect to the internet (DHCP is expected to be on)
-    printf("Connecting to the network using Wifi...\n");
+    printf("Connecting to the network using default network interface...\n");
     net = NetworkInterface::get_default_instance();
 
     nsapi_error_t net_status = -1;
@@ -209,12 +223,13 @@
     // Register with Pelion DM
     client.register_and_connect();
 
-    int i = 600; // wait 60 seconds
+    int i = 600; // wait up 60 seconds before attaching sensors and button events
     while (i-- > 0 && !client.is_client_registered()) {
         wait_ms(100);
     }
 
     button.fall(eventQueue.event(&button_press));
+    printf("Press the user button to increment the LwM2M resource value...\n");
 
 #ifdef ENABLE_SENSORS
     // The timer fires on an interrupt context, but debounces it to the eventqueue, so it's safe to do network operations