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Dependencies:   LPC1114_WakeInterruptIn

Fork of WakeUp by Erik -

Revision:
23:9efec6871545
Parent:
22:49ca85e8822f
--- a/Device/WakeUp_LPC11u24.cpp	Wed Nov 11 20:20:27 2015 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,63 +0,0 @@
-/**
-Due to lack of another option for the LPC11u24 the watchdog timer is used as wakeup source.
-Since if the reset on watchdog event bit is set, I cannot remove it again, this means if you also got watchdog code running
-the most likely result is that it just resets your board.
-**/
-
-
-#ifdef TARGET_LPC11U24
-
-#include "WakeUp.h"
-
-FunctionPointer WakeUp::callback;
-float WakeUp::cycles_per_ms = 5.0;
-
-void WakeUp::set_ms(uint32_t ms)
-{
-    if (ms != 0) {
-        LPC_SYSCON->SYSAHBCLKCTRL |= 0x8000;
-        LPC_SYSCON->PDRUNCFG &= ~(1<<6);
-        LPC_SYSCON->PDSLEEPCFG &= ~(1<<6);
-        LPC_SYSCON->STARTERP1 |= 1<<12;
-        
-        //Set oscillator for 20kHz = 5kHz after divide by 4 in WDT
-        LPC_SYSCON->WDTOSCCTRL = 14 | (1<<5);
-        
-        LPC_WWDT->MOD = 1;      //Enable WDT
-        LPC_WWDT->TC = (uint32_t)((float)ms * cycles_per_ms);
-        LPC_WWDT->CLKSEL = 1;   //WDTOSC
-        LPC_WWDT->WARNINT = 0;
-        
-        NVIC_SetVector(WDT_IRQn, (uint32_t)WakeUp::irq_handler);
-        
-        //Feeeeeed me
-        LPC_WWDT->FEED = 0xAA;
-        LPC_WWDT->FEED = 0x55;
-        
-        NVIC_EnableIRQ(WDT_IRQn);
-    } else
-        NVIC_DisableIRQ(WDT_IRQn);
-    
-}
-
-void WakeUp::irq_handler(void)
-{
-    LPC_WWDT->MOD = 1<<3;
-    callback.call();
-}
-
-void WakeUp::calibrate(void)
-{
-    cycles_per_ms = 5.0;
-    set_ms(1100);
-    wait_ms(10);    //Give time to sync
-    uint32_t count1 = LPC_WWDT->TV;
-    wait_ms(100);
-    uint32_t count2 = LPC_WWDT->TV;
-    set_ms(0);
-    count1 = count1 - count2;
-    
-    cycles_per_ms = count1 / 100.0;
-}
-
-#endif