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Watchdog
Fork of Watchdog_sample_nocoverage by
Diff: wdt.cpp
- Revision:
- 1:159a09ac60ba
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/wdt.cpp Tue Feb 28 17:39:50 2017 +0000 @@ -0,0 +1,43 @@ +#include "mbed.h" +#include "wdt.h" + + +// Simple Library for Watchdog +// --------------------------- + +// Initialise watchdog using 1KHz clock +// To prevent overwriting, only a single write to the COPC register possible +// +void wdt_1sec() { + // 1024ms, not windowed - this is the default + /* SIM_COPC: COPT=11,COPCLKS=0,COPW=0 */ + SIM->COPC = (uint32_t)0x0Cu; +} + +void wdt_256ms() { + // 256ms, not windowed + /* SIM_COPC: COPT=10,COPCLKS=0,COPW=0 */ + SIM->COPC = (uint32_t)0x08u; +} + +void wdt_32ms() { + // 32ms, not windowed + /* SIM_COPC: COPT=01,COPCLKS=0,COPW=0 */ + SIM->COPC = (uint32_t)0x04u; +} + +// Kick (feed, reload) our watchdog timer +void wdt_kick_all(){ + SIM->SRVCOP = (uint32_t)0x55u; + SIM->SRVCOP = (uint32_t)0xAAu; +} + +void wdt_kickA(){ + SIM->SRVCOP = (uint32_t)0x55u; +} + +void wdt_kickB(){ + SIM->SRVCOP = (uint32_t)0xAAu; +} + +