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@81:3656f00ab3db, 2014-12-30 (annotated)

Committer:
klauss
Date:
Tue Dec 30 12:37:40 2014 +0000
Revision:
81:3656f00ab3db
Parent:
33:735fd60e96d8
Child:
121:ee02790d00b7
tentando resolver o bug de apertar duas vezes o botao pra fazer uma call

Who changed what in which revision?

UserRevisionLine numberNew contents of line
klauss 17:67a6b557eda5 1 #include "mbed.h"
klauss 17:67a6b557eda5 2 #include "wdt.h"
klauss 33:735fd60e96d8 3 #include "debug.h"
klauss 17:67a6b557eda5 4
klauss 17:67a6b557eda5 5 /// Watchdog gets instantiated at the module level
klauss 17:67a6b557eda5 6 Watchdog::Watchdog() {
klauss 17:67a6b557eda5 7 wdreset = (LPC_WDT->MOD >> 2) & 1; // capture the cause of the previous reset
klauss 17:67a6b557eda5 8 }
klauss 17:67a6b557eda5 9
klauss 17:67a6b557eda5 10 /// Load timeout value in watchdog timer and enable
klauss 17:67a6b557eda5 11 void Watchdog::Configure(float s) {
klauss 17:67a6b557eda5 12 //LPC_WDT->CLKSEL = 0x1; // Set CLK src to PCLK
klauss 17:67a6b557eda5 13 uint32_t clk = 500000 / 4; // WD has a fixed /4 prescaler, and a 500khz oscillator
klauss 81:3656f00ab3db 14 LPC_WDT->TC = ( uint32_t )( s * ( float )clk );
klauss 17:67a6b557eda5 15 LPC_WDT->MOD = 0x3; // Enabled and Reset
klauss 81:3656f00ab3db 16 kick();
klauss 17:67a6b557eda5 17 }
klauss 17:67a6b557eda5 18
klauss 17:67a6b557eda5 19 /// "Service", "kick" or "feed" the dog - reset the watchdog timer
klauss 17:67a6b557eda5 20 /// by writing this required bit pattern
klauss 17:67a6b557eda5 21 void Watchdog::kick() {
Cola 21:0bd688722e81 22 //x = NVIC_disable_IRQ();
klauss 33:735fd60e96d8 23 /*
klauss 33:735fd60e96d8 24 antes de desabilitar as irqs, eu preciso salvar o status delas
klauss 33:735fd60e96d8 25 */
klauss 33:735fd60e96d8 26 //IRQn irqn;
klauss 33:735fd60e96d8 27 //uint16_t ret = NVIC_GetActive( irqn );
klauss 33:735fd60e96d8 28 //debug_msg( "NVIC_GetActive --%i--", ret );
klauss 33:735fd60e96d8 29 //debug_msg("+");
klauss 33:735fd60e96d8 30 //__disable_irq();
klauss 33:735fd60e96d8 31 //Interrupt ID == 0 -- Exception Number 16
klauss 17:67a6b557eda5 32 LPC_WDT->FEED = 0xAA;
klauss 17:67a6b557eda5 33 LPC_WDT->FEED = 0x55;
klauss 33:735fd60e96d8 34
klauss 33:735fd60e96d8 35 //__enable_irq();
klauss 33:735fd60e96d8 36 //debug_msg(".");
klauss 81:3656f00ab3db 37 }
klauss 81:3656f00ab3db 38
klauss 81:3656f00ab3db 39 bool Watchdog::WatchdogCausedReset(){
klauss 81:3656f00ab3db 40 return( this->wdreset );
klauss 33:735fd60e96d8 41 }