LED Control with the X-NUCLEO-LED61A1 Expansion Board

Diff: main.cpp

Revision:

14:c1a43abb901f

Parent:

13:97083451e538

Child:

15:dd6dc0e07402

--- a/main.cpp	Fri Mar 11 15:59:03 2016 +0000
+++ b/main.cpp	Mon Mar 14 10:09:40 2016 +0000
@@ -50,17 +50,14 @@
 
 /* PI. */
 #ifndef M_PI
-    #define M_PI                      (3.14159265358979323846f)
+    #define M_PI                          (3.14159265358979323846f)
 #endif
 
 /* Loop period in micro-seconds. */
-#define LOOP_PERIOD_us                (5E5) /* 0.5 seconds. */
+#define LOOP_PERIOD_us                    (5E5) /* 0.5 seconds. */
 
 /* Sin period in micro-seconds. */
-#define PWM_SIN_PERIOD_us             (1E7) /* 10 seconds. */
-
-/* Duration of initialization interval in milli-seconds. */
-#define INITIALIZATION_INTERVAL_ms    (2E3) /* 2 seconds. */
+#define PWM_SIN_PERIOD_us                 (1E7) /* 10 seconds. */
 
 
 /* Variables -----------------------------------------------------------------*/
@@ -72,42 +69,13 @@
 LED6001 *led;
 
 /* Interrupt flags. */
-static volatile bool ticker_irq_triggered;
-static volatile bool xfault_irq_triggered;
-
-/* PWM dimming values. */
-static float pwm_dimming;
+static volatile bool ticker_irq_triggered = false;
+static volatile bool xfault_irq_triggered = false;
 
 
 /* Functions -----------------------------------------------------------------*/
 
 /**
- * @brief  Initilizing the demo.
- * @param  None.
- * @retval None.
- */
-void LEDInit(void)
-{
-    /* Printing to the console. */
-    printf("Initializing LED driver...");
-
-    /* Initializing Interrupt flags. */
-    xfault_irq_triggered = false;
-    ticker_irq_triggered = false;
-
-    /* Initializing PWM dimming to maximum values. */
-    pwm_dimming = 1.0f;
-
-    /* Start-up sequence. */
-    led->PowerOFF();
-    wait_ms(INITIALIZATION_INTERVAL_ms);
-    led->PowerON();
-
-    /* Printing to the console. */
-    printf("Done.\r\n\n");
-}
-
-/**
  * @brief  Handling the LED capabilities.
  * @param  None.
  * @retval None.
@@ -117,7 +85,7 @@
     static int tick = 0;
 
     /* Handling the LED dimming when powered ON. */
-    pwm_dimming = 0.5f * sin(2 * M_PI * (tick++ * LOOP_PERIOD_us) / PWM_SIN_PERIOD_us) + 0.5f;
+    float pwm_dimming = 0.5f * sin(2 * M_PI * (tick++ * LOOP_PERIOD_us) / PWM_SIN_PERIOD_us) + 0.5f;
     tick %= (int) (PWM_SIN_PERIOD_us / LOOP_PERIOD_us);
 
     /* Printing to the console. */
@@ -161,10 +129,13 @@
 void XFaultHandler(void)
 {
     /* Printing to the console. */
-    printf("XFAULT Interrupt detected! Re-initializing LED driver...\r\n");
+    printf("XFAULT Interrupt detected! Re-initializing LED driver...");
 
-    /* Re-initializing the demo. */
-    LEDInit();
+    /* Re-starting-up LED Control Component. */
+    led->StartUp();
+
+    /* Printing to the console. */
+    printf("Done.\r\n\n");
 
     led->EnableXFaultIRQ();
 }
@@ -189,8 +160,8 @@
     led->EnableXFaultIRQ();
     ticker.attach_us(TickerIRQ, LOOP_PERIOD_us);
 
-    /* Initializing the demo. */
-    LEDInit();
+    /* Starting-up LED Control Component. */
+    led->StartUp();
 
 
     /*----- LED Control. -----*/