LED Control with the X-NUCLEO-LED61A1 Expansion Board

Diff: main.cpp

Revision:

1:1c01b873ad45

Parent:

0:f5a41692e1fb

Child:

2:dbd596540d46

diff -r f5a41692e1fb -r 1c01b873ad45 main.cpp
--- a/main.cpp	Thu Dec 10 15:34:29 2015 +0000
+++ b/main.cpp	Mon Dec 14 17:43:47 2015 +0000
@@ -42,9 +42,308 @@
 /* mbed specific header files. */
 #include "mbed.h"
 
-/* Expansion Board specific header files. */
-#include "x_nucleo_led61a1_class.h"
-#include "x_nucleo_led61a1_config.h"
+/* Component specific header files. */
+#include "led6001_class.h"
+
+
+/* Definitions ---------------------------------------------------------------*/
+
+#define LOOP_PERIOD_us 1E6
+
+
+/* Variables -----------------------------------------------------------------*/
+
+/* LED Control Component. */
+LED6001 *led;
+
+/* User Button. */
+static InterruptIn button(USER_BUTTON);
+
+/* Interrupt flags. */
+static volatile boolean button_irq_triggered = false;
+static volatile boolean xfault_irq_triggered = false;
+static volatile boolean timer_irq_triggered = false;
+
+/* Timer. */
+static Ticker ticker;
+
+/* MCU Board's Led which provides the user with a visual feedback on
+   the user button's status (ON = pressed, OFF = released). */
+DigitalOut button_pressed_led(LED1);
+
+/* Flags to control the demo. */
+static volatile boolean next_demo_state = false;
+static volatile boolean next_demo = false;
+
+
+/* Functions -----------------------------------------------------------------*/
+
+/**
+ * @brief  State machine initialization
+ * @param  demo - selected demo
+ *         p - reference to pwm dimming level
+ *         a - reference to analog dimming level
+ * @retval None
+ */
+void SM_Init(LED_DRIVER_Demo* demo, uint8_t* p, uint8_t* a)
+{
+ChangeDemoState = 0;
+NextDemo = 0;
+ReInit_LED_Driver = 0;
+
+*p = MAX_BRIGHT_PDIM;
+*a = MAX_BRIGHT_ADIM;
+*demo = PWM_DIMMING_STEPS;
+}
+
+/**
+ * @brief  Interrupt Request for the timer-related interrupt.
+ * @param  None
+ * @retval None
+ */
+void TimerIRQ(void)
+{
+    timer_irq_triggered = true;
+    button.disable_irq();
+}
+
+/**
+* @brief  Handling the LED capabilities and executing several demos.
+* @param  None
+* @retval None
+*/
+void LEDHandler(void)
+{
+    static LED_DRIVER_Demo SM_Demo;
+    static uint8_t pDim;
+    static uint8_t aDim;
+    uint8_t pDim1,pDim2,pDim3;
+    uint8_t aDim1,aDim2,aDim3;
+  
+    /* If LED driver is not to be reinitialized */
+    if (!ReInit_LED_Driver)
+    {
+      /* Update state machine parameters */
+      SM_Update(&SM_Demo,&pDim,&aDim);      
+      
+      /* Change running demo and transmit serial information */
+      if (NextDemo == 1)
+      {
+        pDim = MAX_BRIGHT_PDIM;
+        aDim = MAX_BRIGHT_ADIM;
+        
+        if (SM_Demo == PWM_DIMMING_STEPS)
+        {
+          SM_Demo = ANALOG_DIMMING_STEPS;
+          disp.Len = strlen((char*)Msg_Demo2_Line1);
+          memcpy(disp.Data,Msg_Demo2_Line1,disp.Len);
+          UART_SendMsg(&disp);
+        }
+        else if (SM_Demo == ANALOG_DIMMING_STEPS)
+        {
+          SM_Demo = PWM_DIMMING_VARY;
+          disp.Len = strlen((char*)Msg_Demo3_Line1);
+          memcpy(disp.Data,Msg_Demo3_Line1,disp.Len);
+          UART_SendMsg(&disp);
+        }
+        else if (SM_Demo == PWM_DIMMING_VARY)
+        {
+          SM_Demo = ANALOG_DIMMING_VARY;
+          disp.Len = strlen((char*)Msg_Demo4_Line1);
+          memcpy(disp.Data,Msg_Demo4_Line1,disp.Len);
+          UART_SendMsg(&disp);
+        }
+        else if (SM_Demo == ANALOG_DIMMING_VARY)
+        {
+          SM_Demo = ANALOG_DIMMING_PHOTO;
+          disp.Len = strlen((char*)Msg_Demo5_Line1);
+          memcpy(disp.Data,Msg_Demo5_Line1,disp.Len);
+          UART_SendMsg(&disp);
+        }
+        else if (SM_Demo == ANALOG_DIMMING_PHOTO)
+        {
+          SM_Demo = PWM_DIMMING_STEPS;
+          disp.Len = strlen((char*)Msg_Demo1_Line1);
+          memcpy(disp.Data,Msg_Demo1_Line1,disp.Len);
+          UART_SendMsg(&disp);
+        }
+      }      
+
+      switch (SM_Demo)
+      {
+      /* PWM changes with PB action */  
+      case PWM_DIMMING_STEPS:
+        aDim = MAX_BRIGHT_ADIM;
+        if (ChangeDemoState)
+        {
+          pDim = pDim - 10;
+          if (pDim < MIN_BRIGHT_PDIM)
+            pDim = MAX_BRIGHT_PDIM;
+
+          disp.Len = strlen((char*)Msg_Demo1_Line2);
+          memcpy(disp.Data,Msg_Demo1_Line2 ,disp.Len);          
+          pDim1 = pDim/100;
+          if (pDim1 == 1)
+          {
+            pDim2 = 0; pDim3 = 0;
+            disp.Data[disp.Len] = pDim1+0x30;
+            disp.Data[disp.Len+1] = pDim2+0x30;
+            disp.Data[disp.Len+2] = pDim3+0x30;
+            disp.Data[disp.Len+3] = '%';
+            disp.Len+=4;
+          }
+          else
+          {
+            pDim2 = pDim/10; pDim3 = pDim%10;
+            disp.Data[disp.Len] = pDim2+0x30;
+            disp.Data[disp.Len+1] = pDim3+0x30;
+            disp.Data[disp.Len+2] = '%';
+            disp.Len+=3;
+          }
+          disp.Data[disp.Len] = '\n';
+          disp.Data[disp.Len+1] = '\r';          
+          disp.Len += 2;
+          UART_SendMsg(&disp);     
+        }
+        break;
+      /* Analog dimming changes with PB action */  
+      case ANALOG_DIMMING_STEPS:     
+        pDim = MAX_BRIGHT_PDIM;
+        if (ChangeDemoState)
+        {
+          aDim = aDim - 5;
+          if (aDim < MIN_BRIGHT_ADIM)
+            aDim = MAX_BRIGHT_ADIM;
+          
+          disp.Len = strlen((char*)Msg_Demo2_Line2);
+          memcpy(disp.Data,Msg_Demo2_Line2 ,disp.Len);          
+          aDim1 = aDim/100;
+          if (aDim1 == 1)
+          {
+            aDim2 = 0; aDim3 = 0;
+            disp.Data[disp.Len] = aDim1+0x30;
+            disp.Data[disp.Len+1] = aDim2+0x30;
+            disp.Data[disp.Len+2] = aDim3+0x30;
+            disp.Data[disp.Len+3] = '%';
+            disp.Len+=4;
+          }
+          else
+          {
+            aDim2 = aDim/10; aDim3 = aDim%10;
+            disp.Data[disp.Len] = aDim2+0x30;
+            disp.Data[disp.Len+1] = aDim3+0x30;
+            disp.Data[disp.Len+2] = '%';
+            disp.Len+=3;
+          }
+          disp.Data[disp.Len] = '\n';
+          disp.Data[disp.Len+1] = '\r';          
+          disp.Len += 2;          
+          UART_SendMsg(&disp);     
+        }
+        break;
+      /* PWM dimming changes continuously */  
+      case PWM_DIMMING_VARY: 
+        aDim = MAX_BRIGHT_ADIM;
+        pDim--;
+        if (pDim < MIN_BRIGHT_PDIM)
+          pDim = MAX_BRIGHT_PDIM;
+        HAL_Delay(50);
+        break;
+      /* Analog dimming changes continuously */  
+      case ANALOG_DIMMING_VARY: 
+        pDim = MAX_BRIGHT_PDIM;
+        aDim-=3;
+        if (aDim < MIN_BRIGHT_ADIM)
+          aDim = MAX_BRIGHT_ADIM;      
+        HAL_Delay(500);
+        break;
+      /* Analog dimming changes based on photo sensor value */  
+      case ANALOG_DIMMING_PHOTO:  
+        pDim = MAX_BRIGHT_PDIM;
+        aDim = (uint8_t)(((BSP_Photo_Sensor_GetVal()>>3)+72)/9);
+        HAL_Delay(100);
+        break;    
+      }
+      
+      BSP_SetPwmDim(pDim);
+      BSP_SetAnaDim(aDim);
+
+      ChangeDemoState = 0;
+      NextDemo = 0;
+    }  
+}
+
+/**
+ * @brief  Interrupt Request for the XFAULT interrupt.
+ * @param  None
+ * @retval None
+ */
+void XFaultIRQ(void)
+{
+    xfault_irq_triggered = true;
+    led->DisableXFaultIRQ();
+}
+
+/**
+ * @brief  Interrupt Handler for the XFAULT interrupt.
+ * @param  None
+ * @retval None
+ */
+void XFaultHandler(void)
+{
+    printf("XFAULT Interrupt detected! Re-initializing LED driver...\r\n");
+
+BSP_SetPwmDim(ZERO);
+BSP_SetAnaDim(ZERO);
+
+SM_Init(&SM_Demo,&pDim,&aDim);
+BSP_SetPwmDim(pDim);
+BSP_SetAnaDim(aDim);
+
+    led->EnableXFaultIRQ();
+}
+
+/**
+ * @brief  Interrupt Request for the user button interrupt.
+ * @param  None
+ * @retval None
+ */
+void ButtonIRQ(void)
+{
+    button_irq_triggered = true;
+    button.disable_irq();
+}
+
+/**
+ * @brief  Interrupt Handler for the user button interrupt.
+ * @param  None
+ * @retval None
+ */
+void ButtonHandler(void)
+{
+    bool button_pressed_flag = (button.read() == 0 ? true : false);
+
+    if (button_pressed_flag)
+    {
+        button_pressed_led = 1;
+        button_pressed_timer.start();
+    }
+    else
+    {
+        button_pressed_led = 0;
+        button_pressed_timer.stop();
+
+        /* Either changing current demo's state or switching to the next demo. */
+        if (button_pressed_timer.read_ms() < 1000)
+            next_demo_state = true;
+        else
+            next_demo = true;
+
+        button_pressed_timer.reset();
+    }
+
+    button.enable_irq();
+}
 
 
 /* Main ----------------------------------------------------------------------*/
@@ -53,12 +352,51 @@
 {
     /*----- Initialization. -----*/
 
-    /* Initializing LED Expansion Board. */
-    X_NUCLEO_LED61A1 *x_nucleo_led61a1 = new X_NUCLEO_LED61A1();
+    /* Initializing LED Control Component. */
+    led = new LED6001(D4, A3);
+    
+    /********** NOT USED, TBC *********/
+    LED_DRIVER_InitTypeDef init =
+    {
+        LED6001_PDIM_FULL,
+        LED6001_ADIM_FULL
+    };
+
+    if (led->Init(&init) != COMPONENT_OK)
+        exit(EXIT_FAILURE);
+
+    /* Attaching interrupt request functions. */
+    button.fall(ButtonIRQ);
+    button.rise(ButtonIRQ);
+    led->AttachXFaultIRQ(&XFaultIRQ);
+    ticker.attach_us(TimerIRQ, LOOP_PERIOD_us);
+
+SM_Init(&SM_Demo,&pDim,&aDim);
 
     /* Printing to the console. */
     printf("LED Control Application Example\r\n\n");
 
 
     /*----- LED Control. -----*/
-}
\ No newline at end of file
+
+    while (true)
+    {
+        if (timer_irq_triggered)
+        {
+            timer_irq_triggered = false;
+            LEDHandler();
+        } else if (button_irq_triggered)
+        {
+            button_irq_triggered = false;
+            ButtonHandler();
+        } else if(xfault_irq_triggered)
+        {
+            xfault_irq_triggered = false;
+            XFaultHandler();
+        } else
+        {
+            /* It is recommended that SEVONPEND in the System Control Register is NOT set. */
+            __WFE();
+        }
+    }
+}