Add device labels

due_obd2/due_obd2.ino

@@ -31,6 +31,8 @@ Program to create a car monitor display using:
 #define FLAG_INIT_UPDATE_TEXT_POS 0x01
 #define FLAG_INIT_CLEAR_POS 0x02
 #define FLAG_INIT_UPDATE_PERCENT_POS 0x03
+#define FLAG_DEVICE_LABEL_UPDATE_POS 0x04
+#define FLAG_DEVICE_LABEL_SHOULD_UPDATE_POS 0x05
 
 #define LOGO_MIN_STEP 20
 #define LOGO_MAX_POS_Y 124
@@ -38,25 +40,50 @@ Program to create a car monitor display using:
 
 #define LOGO_TEXT_WIDTH 16
 
+#define RAM_AMOUNT_KB 96
+#define DEV_CPU_RAM_TEXT_LENGTH 3
+#define DEV_DISPLAY_TEXT_LENGTH 7
+
+enum DeviceLabel
+{
+    DEV_CPU = 0,
+    DEV_RAM = 1,
+    DEV_DISPLAY = 2,
+    DEV_DONE = 3
+};
+
+/* extern fonts */
 extern uint8_t BigFont[];
 extern uint8_t SmallFont[];
 extern uint8_t OCR_A_Extended_M[];
 
+/* display strings */
+char init_text[] PROGMEM = "Initialising...";
+char device_labels[3][10] PROGMEM = {"CPU    ", "RAM    ", "DISPLAY"};
+char cpu_text[] PROGMEM = "ATSAM3X8E";
+char display_size_text[] PROGMEM = "480x320";
+
+/* initialising... variables */
 char should_clear = 1;
 char led_state = LOW;
 char init_flag = 0;
 char init_text_i = -1;
 int init_text_x = 100;
-char init_text[] PROGMEM = "Initialising...";
 char text_temp[2] = {'a', '\0'};
 int init_percent = 0;
 
+/* logo variables */
 char logo_text[] PROGMEM = "DS3 OBD2 display";
 int logo_pos_y = 0;
 int last_logo_pos_y = 0;
 int logo_pos_i = 0;
 char logo_flag = 0;
 
+/* device info variables */
+char init_device_info = 0; /* wether we are drawing CPU (0), RAM (1) or DISPLAY (2) */
+char ram_kb_amount = 0;    /* counts up to 96 to show the KB of ram */
+char device_label_i = -1;   /* counter in the current device label */
+
 void on_init_enter();
 void on_init_run();
 void on_init_exit();
@@ -97,6 +124,9 @@ void on_init_enter()
     Timer0.attachInterrupt(update_init_text);
     Timer0.start(MS(200));
 
+    Timer2.attachInterrupt(update_device_info);
+    Timer2.start(MS(100));
+
     // TODO change to update when initializing bluetooth..
     Timer1.attachInterrupt(update_percent_test);
     Timer1.start(MS(60));
@@ -140,6 +170,15 @@ void on_init_run()
         free(percent_text);
     }
 
+    if (init_flag & (1 << FLAG_DEVICE_LABEL_UPDATE_POS))
+    {
+        init_flag &= ~(1 << FLAG_DEVICE_LABEL_UPDATE_POS);
+        text_temp[0] = device_labels[init_device_info][device_label_i];
+        display.setColor(VGA_AQUA);
+        int x_position = 10 + (device_label_i * display.getFontXsize());
+        display.print(text_temp, x_position, 10 + (init_device_info * display.getFontYsize() + 3));
+    }
+
     logo_pos_i += 3;
     last_logo_pos_y = logo_pos_y;
     logo_pos_y = logo_step(logo_pos_i);
@@ -157,7 +196,6 @@ void on_init_run()
             display.setColor(VGA_AQUA);
             display.print(logo_text, CENTER, logo_pos_y);
         }
-
     }
 }
 
@@ -165,7 +203,10 @@ void on_init_exit()
 {
     Serial.println("Exiting init state!");
     display.clrScr();
+    Timer0.detachInterrupt();
     Timer0.stop();
+    Timer2.detachInterrupt();
+    Timer2.stop();
 }
 
 /****************************/
@@ -204,6 +245,40 @@ void update_percent_test()
     init_flag |= (1 << FLAG_INIT_UPDATE_PERCENT_POS);
 }
 
+void update_device_info()
+{
+    switch (init_device_info)
+    {
+    case DEV_CPU:
+        device_label_i++;
+        if (device_label_i > DEV_CPU_RAM_TEXT_LENGTH)
+        {
+            init_device_info++;
+            device_label_i = 0;
+        }
+        break;
+    case DEV_RAM:
+        device_label_i++;
+        if (device_label_i > DEV_CPU_RAM_TEXT_LENGTH)
+        {
+            init_device_info++;
+            device_label_i = 0;
+        }
+        break;
+    case DEV_DISPLAY:
+        device_label_i++;
+        if (device_label_i > DEV_DISPLAY_TEXT_LENGTH)
+        {
+            
+            device_label_i = 0;
+        }
+        break;
+    default:
+        break;
+    }
+    init_flag |= (1 << FLAG_DEVICE_LABEL_UPDATE_POS);
+}
+
 void setup()
 {