a
Fork of Watchdog by
Diff: Watchdog.cpp
- Revision:
- 2:2873f068f325
- Parent:
- 0:7a316f14da9c
- Child:
- 3:5959d3d35221
--- a/Watchdog.cpp Sun Mar 20 23:24:36 2011 +0000 +++ b/Watchdog.cpp Thu Jun 16 20:55:38 2011 +0000 @@ -1,4 +1,17 @@ - +/// @file Watchdog.cpp provides the interface to the Watchdog module +/// +/// This provides basic Watchdog service for the mbed. You can configure +/// various timeout intervals that meet your system needs. Additionally, +/// it is possible to identify if the Watchdog was the cause of any +/// system restart. +/// +/// Adapted from Simon's Watchdog code from http://mbed.org/forum/mbed/topic/508/ +/// +/// @note Copyright © 2011 by Smartware Computing, all rights reserved. +/// This software may be used to derive new software, as long as +/// this copyright statement remains in the source file. +/// @author David Smart +/// #include "mbed.h" #include "Watchdog.h" @@ -6,14 +19,14 @@ /// Watchdog gets instantiated at the module level Watchdog::Watchdog() { - wdreset = (LPC_WDT->WDMOD >> 2) & 1; + wdreset = (LPC_WDT->WDMOD >> 2) & 1; // capture the cause of the previous reset } /// Load timeout value in watchdog timer and enable void Watchdog::Configure(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->WDTC = (uint32_t)(s * (float)clk); LPC_WDT->WDMOD = 0x3; // Enabled and Reset Service(); }