Jozsef Benecs / Mbed 2 deprecated Measure_system

Measure system

Dependencies:   EthernetNetIf mbed RF12B

WatchDog/WatchDog.cpp@3:799d8c61fb03, 2011-05-17 (annotated)

Committer:
benecsj
Date:
Tue May 17 16:49:23 2011 +0000
Revision:
3:799d8c61fb03
Parent:
0:8d62137f7ff4 

        

        
Who changed what in which revision?

        

            
                
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#include "mbed.h"





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#include "WatchDog.h"





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watchdog::watchdog(float s) {





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    LPC_WDT->WDCLKSEL = 0x1;                // Set CLK src to PCLK





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    uint32_t clk = SystemCoreClock / 16;    // WD has a fixed /4 prescaler, PCLK default is /4 





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    LPC_WDT->WDTC = s * (float)clk;         





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    LPC_WDT->WDMOD = 0x3;                   // Enabled and Reset        





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    feed();    





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}





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watchdog_ms::watchdog_ms(int ms) {





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    LPC_WDT->WDCLKSEL = 0x1;                // Set CLK src to PCLK





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    uint32_t clk = SystemCoreClock / 16;    // WD has a fixed /4 prescaler, PCLK default is /4 





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    LPC_WDT->WDTC = ((float)ms * (float)clk) /1000;         





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    LPC_WDT->WDMOD = 0x3;                   // Enabled and Reset        





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    feed();





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}





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watchdog_us::watchdog_us(int us) {





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    LPC_WDT->WDCLKSEL = 0x1;                // Set CLK src to PCLK





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    uint32_t clk = SystemCoreClock / 16;    // WD has a fixed /4 prescaler, PCLK default is /4 





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    LPC_WDT->WDTC = ((float)us * (float)clk) /1000000;         





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    LPC_WDT->WDMOD = 0x3;                   // Enabled and Reset        





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    feed();





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}





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void watchdog::feed() {





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    LPC_WDT->WDFEED = 0xAA;





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    LPC_WDT->WDFEED = 0x55;





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}





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void watchdog_ms::feed() {





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    LPC_WDT->WDFEED = 0xAA;





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    LPC_WDT->WDFEED = 0x55;





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}





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void watchdog_us::feed() {





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    LPC_WDT->WDFEED = 0xAA;





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    LPC_WDT->WDFEED = 0x55;





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}