VZTECH / Mbed 2 deprecated main_src

Modularizando o src

Dependencies:   EALib EthernetInterface_vz mbed-rtos mbed

Fork of header_main_colinas_V0-20-09-14 by VZTECH

wdt.cpp@137:32dd35a6dbc9, 2015-11-24 (annotated)

Committer:
klauss
Date:
Tue Nov 24 14:06:22 2015 +0000
Revision:
137:32dd35a6dbc9
Parent:
121:ee02790d00b7 
core source of the .bin (09/21/2015) in the field

Who changed what in which revision?

UserRevisionLine numberNew contents of line
klauss 17:67a6b557eda5 1 #include "wdt.h"
klauss 17:67a6b557eda5 2
klauss 17:67a6b557eda5 3 /// Watchdog gets instantiated at the module level
klauss 17:67a6b557eda5 4 Watchdog::Watchdog() {
klauss 17:67a6b557eda5 5 wdreset = (LPC_WDT->MOD >> 2) & 1; // capture the cause of the previous reset
klauss 17:67a6b557eda5 6 }
klauss 17:67a6b557eda5 7
klauss 17:67a6b557eda5 8 /// Load timeout value in watchdog timer and enable
klauss 17:67a6b557eda5 9 void Watchdog::Configure(float s) {
klauss 17:67a6b557eda5 10 //LPC_WDT->CLKSEL = 0x1; // Set CLK src to PCLK
klauss 17:67a6b557eda5 11 uint32_t clk = 500000 / 4; // WD has a fixed /4 prescaler, and a 500khz oscillator
klauss 81:3656f00ab3db 12 LPC_WDT->TC = ( uint32_t )( s * ( float )clk );
klauss 17:67a6b557eda5 13 LPC_WDT->MOD = 0x3; // Enabled and Reset
klauss 81:3656f00ab3db 14 kick();
klauss 17:67a6b557eda5 15 }
klauss 17:67a6b557eda5 16
klauss 17:67a6b557eda5 17 /// "Service", "kick" or "feed" the dog - reset the watchdog timer
klauss 17:67a6b557eda5 18 /// by writing this required bit pattern
klauss 17:67a6b557eda5 19 void Watchdog::kick() {
Cola 21:0bd688722e81 20 //x = NVIC_disable_IRQ();
klauss 33:735fd60e96d8 21 /*
klauss 33:735fd60e96d8 22 antes de desabilitar as irqs, eu preciso salvar o status delas
klauss 33:735fd60e96d8 23 */
klauss 33:735fd60e96d8 24 //IRQn irqn;
klauss 33:735fd60e96d8 25 //uint16_t ret = NVIC_GetActive( irqn );
klauss 33:735fd60e96d8 26 //debug_msg( "NVIC_GetActive --%i--", ret );
klauss 33:735fd60e96d8 27 //debug_msg("+");
klauss 33:735fd60e96d8 28 //__disable_irq();
klauss 33:735fd60e96d8 29 //Interrupt ID == 0 -- Exception Number 16
klauss 17:67a6b557eda5 30 LPC_WDT->FEED = 0xAA;
klauss 17:67a6b557eda5 31 LPC_WDT->FEED = 0x55;
klauss 33:735fd60e96d8 32
klauss 33:735fd60e96d8 33 //__enable_irq();
klauss 33:735fd60e96d8 34 //debug_msg(".");
klauss 81:3656f00ab3db 35 }
klauss 81:3656f00ab3db 36
klauss 81:3656f00ab3db 37 bool Watchdog::WatchdogCausedReset(){
klauss 81:3656f00ab3db 38 return( this->wdreset );
klauss 33:735fd60e96d8 39 }