Diff: main.cpp

Revision:

24:fe4e288bbca3

Parent:

23:99a13f79cdad

Child:

25:fe4425b11e3c

--- a/main.cpp	Fri Sep 13 04:03:41 2013 +0000
+++ b/main.cpp	Fri Sep 13 04:06:04 2013 +0000
@@ -80,6 +80,8 @@
     Ticker      tickerLCD;                      // display ticker.
     Timeout     timeoutDutyCycle;               // LED duty cycle delay.
     Timeout     timeoutMetronome;
+    
+
 //-------prototypes-----------------------------//------------------------------
     void initialization();                      // initialize settings.
     void lcd_display();                         // display on LCD.
@@ -94,6 +96,27 @@
     void ISR_left_falling();                    // bounce protection.
     void ISR_center();                          // set to 60BPM.
     void turn_off_metronome();                  // turn off blinker.
+    
+    
+    
+class Watchdog {
+public:
+// Load timeout value in watchdog timer and enable
+    void kick(float s) {
+        LPC_WDT->WDCLKSEL = 0x1;                // Set CLK src to PCLK
+        uint32_t clk = SystemCoreClock / 16;    // WD has a fixed /4 prescaler, PCLK default is /4
+        LPC_WDT->WDTC = s * (float)clk;
+        LPC_WDT->WDMOD = 0x3;                   // Enabled and Reset
+        kick();
+    }
+// "kick" or "feed" the dog - reset the watchdog timer
+// by writing this required bit pattern
+    void kick() {
+        LPC_WDT->WDFEED = 0xAA;
+        LPC_WDT->WDFEED = 0x55;
+    }
+};    
+       Watchdog wdt;                               // add a wachdog timer. 
 //==============================================//==============================
     int main(void) 
     {