Revision 5:c15ad9683195, committed 2018-06-15

Comitter:

jblackann

Date:

Fri Jun 15 12:51:21 2018 +0000

Parent:

4:19430589f400

Commit message:

An update of the GlassLCD project for the Discovery STM32L476 board to display on the LCD what buttons are being pressed.

Changed in this revision

--- a/BSP_DISCO_L476VG.lib	Thu Jul 06 09:10:51 2017 +0000
+++ b/BSP_DISCO_L476VG.lib	Fri Jun 15 12:51:21 2018 +0000
@@ -1,1 +1,1 @@
-https://developer.mbed.org/teams/ST/code/BSP_DISCO_L476VG/#23fea64454eb
+https://developer.mbed.org/teams/ST/code/BSP_DISCO_L476VG/#472232f07925

--- a/main.cpp	Thu Jul 06 09:10:51 2017 +0000
+++ b/main.cpp	Fri Jun 15 12:51:21 2018 +0000
@@ -3,22 +3,138 @@
 
 LCD_DISCO_L476VG lcd;
 
+#define USE_PRINTF (1)
+
+// Joystick button
+InterruptIn center(JOYSTICK_CENTER);
+InterruptIn left(JOYSTICK_LEFT);
+InterruptIn right(JOYSTICK_RIGHT);
+InterruptIn up(JOYSTICK_UP);
+InterruptIn down(JOYSTICK_DOWN);
+
+// LEDs
 DigitalOut led_green(LED1);
+DigitalOut led_red(LED2);
+
+void center_released() {
+    led_green = 0;
+    lcd.Clear();
+#if USE_PRINTF == 1
+    printf("center button released\n");
+#endif  
+}
+
+void center_pressed() {
+    led_green = 1;
+    lcd.DisplayString((uint8_t *)"Center");
+#if USE_PRINTF == 1  
+    printf("center button pressed\n");
+#endif  
+}
+
+void left_released() {
+    led_green = 0;
+    lcd.Clear();
+#if USE_PRINTF == 1
+    printf("left button released\n");
+#endif  
+}
+
+void left_pressed() {
+    led_green = 1;
+    lcd.DisplayString((uint8_t *)"Left");
+#if USE_PRINTF == 1  
+    printf("left button pressed\n");
+#endif  
+}
+
+void right_released() {
+    led_green = 0;
+    lcd.Clear();
+#if USE_PRINTF == 1
+    printf("right button released\n");
+#endif  
+}
+
+void right_pressed() {
+    led_green = 1;
+    lcd.DisplayString((uint8_t *)"Right");
+#if USE_PRINTF == 1  
+    printf("right button pressed\n");
+#endif  
+}
+
+void up_released() {
+    led_green = 0;
+    lcd.Clear();
+#if USE_PRINTF == 1
+    printf("up button released\n");
+#endif  
+}
+
+void up_pressed() {
+    led_green = 1;
+    lcd.DisplayString((uint8_t *)"Up");
+#if USE_PRINTF == 1  
+    printf("up button pressed\n");
+#endif  
+}
+
+void down_released() {
+    led_green = 0;
+    lcd.Clear();
+#if USE_PRINTF == 1
+    printf("down button released\n");
+#endif  
+}
+
+void down_pressed() {
+    led_green = 1;
+    lcd.DisplayString((uint8_t *)"Down");
+#if USE_PRINTF == 1  
+    printf("down button pressed\n");
+#endif  
+}
 
 int main()
 {
     uint32_t temp = 0;
     uint8_t stemp[7] = {0};
-    uint8_t title[] = "      DISCOVERY STM32L476";
+    //uint8_t title[] = "      DISCOVERY STM32L476";
+    uint8_t title[] = "      EET Micros 1";
+  #if USE_PRINTF == 1  
+    int i = 0;
+    printf("\nStart!\n");
+#endif
+  
+    // Both rise and fall edges generate an interrupt
+    center.fall(&center_released);
+    center.rise(&center_pressed);
+    left.fall(&left_released);
+    left.rise(&left_pressed);
+    right.fall(&right_released);
+    right.rise(&right_pressed);
+    up.fall(&up_released);
+    up.rise(&up_pressed);
+    down.fall(&down_released);
+    down.rise(&down_pressed);
+
+    // Add pull-down on these pins
+    // Warning: must be done AFTER edges setting
+    left.mode(PullDown);
+    right.mode(PullDown);
+    up.mode(PullDown);
+    down.mode(PullDown);
   
     printf("Hello\n");
     led_green = 1;
     lcd.Clear();
-    lcd.DisplayString((uint8_t *)"HELLO");
+    lcd.DisplayString((uint8_t *)"YSU");
     wait(1);
     
     printf("Scroll sequence\n");
     led_green = 0;
+    led_red = 1;
     lcd.Clear();
     lcd.ScrollSentence(title, 2, 200);
     lcd.Clear();
@@ -31,6 +147,7 @@
         temp++;
         if (temp > 4) temp = 0;
         led_green = !led_green;
+        led_red = !led_red; 
         wait(1);
     }
 }