Diff: WatchdogTimer.cpp

Revision:

0:172aa845e1d7

Child:

1:10fdcb411fbd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WatchdogTimer.cpp	Tue Jun 30 16:19:16 2015 +0000
@@ -0,0 +1,24 @@
+#include "WatchdogTimer.h"
+
+WatchdogTimer::WatchdogTimer(float seconds)
+{
+    //Configure watchdog timer
+    //HALT_Pause: Pause watchdog when debugger stops chip
+    //Sleep_Run: Continue running watchdog when chip sleeps
+    NRF_WDT->CONFIG = (WDT_CONFIG_HALT_Pause << WDT_CONFIG_HALT_Pos) | ( WDT_CONFIG_SLEEP_Run << WDT_CONFIG_SLEEP_Pos);
+    
+    //Set watchdog timeout (seconds * clock cycle)
+    NRF_WDT->CRV = seconds * (float)NRF_CLK_RATE;
+    
+    //Enable reload register 0
+    NRF_WDT->RREN = WDT_RREN_RR0_Enabled << WDT_RREN_RR0_Pos;
+    
+    //Start the watchdog timer
+    NRF_WDT->TASKS_START = 1;
+}
+
+void WatchdogTimer::kick()
+{
+    //Reload register 0
+    NRF_WDT->RR[0] = WDT_RR_RR_Reload;
+}
\ No newline at end of file