S K UCI
/
an_m0interface_stall_test
simple test program to demonstrate a (random) stalling of the mbed on a call to the interface chip
Watchdog.h
- Committer:
- uci1
- Date:
- 2015-01-21
- Revision:
- 0:fcbed0c42196
File content as of revision 0:fcbed0c42196:
#ifndef MB_Watchdog #define MB_Watchdog #define WDFAILSAFE (1200u) // Adapted from Simon's Watchdog code from // http://mbed.org/forum/mbed/topic/508/ namespace Watchdog { // "kick" or "feed" the dog - reset the watchdog timer // by writing this required bit pattern inline void kick() { LPC_WDT->WDFEED = 0xAA; LPC_WDT->WDFEED = 0x55; } // Load timeout value in watchdog timer and enable inline void kick(const float s) { // LPC_WDT->WDCLKSEL = 0x1; // Set CLK src to PCLK // WD has a fixed /4 prescaler, PCLK default is /4 // static const float clk = static_cast<float>(SystemCoreClock / 16); LPC_WDT->WDCLKSEL = 0x00; // Set CLK src to Internal RC static const float clk = static_cast<float>(1e6); // 4MHz / 4 for WD prescaler LPC_WDT->WDTC = static_cast<uint32_t>(s * clk); LPC_WDT->WDMOD |= 0x3; // Enabled and Reset kick(); } inline bool didWatchdogReset() { return ( (LPC_WDT->WDMOD) & 0x4 ); } inline void clearResetFlag() { LPC_WDT->WDMOD &= ~(0x4); } struct SnKickStarter { SnKickStarter(const float s) { Watchdog::kick(s); } }; }; #endif // MB_Watchdog