Mike Moore
watchdog timer. this is a derived work.
Dependents: Embedded_RTOS_Project
Revision 0:f27d373a8e28, committed 2013-09-17
- Comitter:
- gatedClock
- Date:
- Tue Sep 17 15:03:56 2013 +0000
- Commit message:
- add watchdog library.
Changed in this revision
| watchdog.h | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r f27d373a8e28 watchdog.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/watchdog.h Tue Sep 17 15:03:56 2013 +0000
@@ -0,0 +1,24 @@
+/*----------------------------------------------//----------------------------*/
+ // Simon's Watchdog code from
+ // http://mbed.org/forum/mbed/topic/508/
+ class Watchdog
+ {
+ public:
+
+ void kick(float s) // Load timeout value in watchdog timer and enable
+ {
+ 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();
+ }
+
+
+ void kick() // reset timer.
+ {
+ LPC_WDT->WDFEED = 0xAA;
+ LPC_WDT->WDFEED = 0x55;
+ }
+ };
+/*----------------------------------------------//----------------------------*/
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