Diff: ARCH_GPRS_Sleep.cpp

Revision:

0:877664c39acd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ARCH_GPRS_Sleep.cpp	Thu Mar 19 18:25:03 2015 +0000
@@ -0,0 +1,90 @@
+#include "mbed.h"
+#include "ARCH_GPRS_Sleep.h"
+#include "ARCH_GPRS_HW.h"
+
+void Stalker3_0_sleep::gotoSleep()               // goto sleep mode, untill wdt interrupt
+{
+    LPC_PMU->PCON          |= 0x01;                                     /* ?????????           */
+    LPC_SYSCON->PDSLEEPCFG |= (1UL << 3);                               /* ??BOD???????        */
+    SCB->SCR &= ~(1UL << 2);                                            /* ??????                 */
+    __wfi();
+}
+
+void Stalker3_0_sleep::wdtClkSetup(unsigned long clksrc)
+{
+  /* Freq = 0.5Mhz, div_sel is 0x1F, divided by 64. WDT_OSC should be 7.8125khz */
+    LPC_SYSCON->WDTOSCCTRL = (0x1<<5)|0x1F;
+    LPC_SYSCON->PDRUNCFG &= ~(0x1<<6);    /* Let WDT clock run */
+
+  /* Enables clock for WDT */
+    LPC_SYSCON->SYSAHBCLKCTRL |= (1<<15);
+    LPC_WWDT->CLKSEL = clksrc;        /* Select clock source */
+
+}
+
+void Stalker3_0_sleep::wdtInit(long tc)          // init wdt
+{
+    uint32_t regVal;
+
+    LPC_WWDT->TC = tc;
+
+    regVal = WDEN;
+    LPC_WWDT->MOD = regVal;
+
+    LPC_WWDT->FEED = 0xAA;        /* Feeding sequence */
+    LPC_WWDT->FEED = 0x55;
+
+    NVIC_EnableIRQ(WDT_IRQn);
+    NVIC_SetPriority(WDT_IRQn, 2);
+    return;
+
+}
+
+void Stalker3_0_sleep::init()
+{
+
+}
+
+void Stalker3_0_sleep::sleep(long ts)            // sleep for ts (s)
+{
+
+    workMode = MODE_SLEEP;
+    wdtInit(0x2dc6c0);
+
+    for(int i=0; i<ts; i++)
+    {
+        gotoSleep();
+    }
+
+    workMode = MODE_WORKING;
+    feed();
+}
+
+void Stalker3_0_sleep::wakeUp()                  // wake up from sleep
+{
+
+}
+
+void Stalker3_0_sleep::feed()                    // watch dog feed
+{
+    LPC_WWDT->FEED = 0xAA;        /* Feeding sequence */
+    LPC_WWDT->FEED = 0x55;
+    return;
+}
+
+Stalker3_0_sleep wdt_sleep;
+
+extern "C"{
+
+    void WDT_IRQHandler(void)
+    {
+
+        if(wdt_sleep.workMode == MODE_WORKING)      // WORKING MODE, AND NO FEET WDT, RESET!!!
+        {
+            NVIC_SystemReset();
+        }
+        LPC_WWDT->MOD &= ~WDTOF;        /* clear the time-out flag and interrupt flag */
+        LPC_WWDT->MOD &= ~WDINT;        /* clear the time-out flag and interrupt flag */
+        wdt_sleep.wdtInit(0x2dc6c0);
+    }
+}