//****************************************************************************
//
//! Implements Sleep followed by wakeup using WDT timeout
//!
//! \param none
//!
//! This function
//! 1. Implements Sleep followed by wakeup using WDT
//!
//! \return None.
//
//****************************************************************************
void PerformPRCMSleepWDTWakeup()
{
//
// Initialize the WDT
//
WDT_IF_Init(AppWDTCallBackHandler, (4 * SYS_CLK));
//
// Enable the Sleep Clock
//
MAP_PRCMPeripheralClkEnable(PRCM_WDT, PRCM_SLP_MODE_CLK);
//
// Enter SLEEP...WaitForInterrupt ARM intrinsic
//
DBG_PRINT("WDT_SLEEP: Entering Sleep\n\r");
MAP_UtilsDelay(80000);
MAP_PRCMSleepEnter();
DBG_PRINT("WDT_SLEEP: Exiting Sleep\n\r");
//
// Disable the Sleep Clock
//
MAP_PRCMPeripheralClkDisable(PRCM_WDT, PRCM_SLP_MODE_CLK);
//
// Deinitialize the WDT
//
WDT_IF_DeInit();
//
// PowerOff WDT
//
MAP_PRCMPeripheralClkDisable(PRCM_WDT, PRCM_RUN_MODE_CLK);
}
//*****************************************************************************
//
//! main function demonstrates the use of the watchdog timer to perform system
//! reset.
//!
//! \param None
//!
//! \return None
//
//*****************************************************************************
void main(void)
{
tBoolean bRetcode;
//
// Initialize the board
//
BoardInit();
//
// Pinmuxing for LEDs
//
PinMuxConfig();
//
// configure RED LED
//
GPIO_IF_LedConfigure(LED1);
GPIO_IF_LedOff(MCU_RED_LED_GPIO);
//
// Enable the peripherals used by this example.
//
MAP_PRCMPeripheralClkEnable(PRCM_WDT, PRCM_RUN_MODE_CLK);
//
// Set up the watchdog interrupt handler.
//
WDT_IF_Init(WatchdogIntHandler, MILLISECONDS_TO_TICKS(WD_PERIOD_MS));
//
// Start the timer. Once the timer is started, it cannot be disable.
//
MAP_WatchdogEnable(WDT_BASE);
bRetcode = MAP_WatchdogRunning(WDT_BASE);
if(!bRetcode)
{
WDT_IF_DeInit();
}
//
// Loop forever while the LED winks as watchdog interrupts are handled.
//
while(FOREVER)
{
}
}
//*****************************************************************************
//
//! main function demonstrates the use of the watchdog timer to perform system
//! reset.
//!
//! \param None
//!
//! \return None
//
//*****************************************************************************
void main(void)
{
tBoolean bRetcode;
//
// Initialize the board
//
BoardInit();
//
// Pinmuxing for LEDs
//
PinMuxConfig();
//
// configure RED LED
//
GPIO_IF_LedConfigure(LED1);
GPIO_IF_LedOff(MCU_RED_LED_GPIO);
//
// Set up the watchdog interrupt handler.
//
WDT_IF_Init(WatchdogIntHandler, MILLISECONDS_TO_TICKS(WD_PERIOD_MS));
bRetcode = MAP_WatchdogRunning(WDT_BASE);
if(!bRetcode)
{
WDT_IF_DeInit();
}
//
// Loop forever while the LED winks as watchdog interrupts are handled.
//
while(FOREVER)
{
}
}
//*****************************************************************************
//
//! \brief Connecting to a WLAN Accesspoint
//! This function connects to the required AP (SSID_NAME).
//! This code example assumes the AP doesn't use WIFI security.
//! The function will return only once we are connected
//! and have acquired IP address
//!
//! \param[in] None
//!
//! \return 0 means success, -1 means failure
//!
//! \note
//!
//! \warning If the WLAN connection fails or we don't aquire an IP address,
//! We will be stuck in this function forever.
//
//*****************************************************************************
int WlanConnect()
{
int iRetCode = 0;
int iRetVal = 0;
int iConnect = 0;
unsigned char ucQueueMsg = 0;
SlSecParams_t secParams;
secParams.Key = (signed char *)SECURITY_KEY;
secParams.KeyLen = strlen((const char *)secParams.Key);
secParams.Type = SECURITY_TYPE;
//
// Set up the watchdog interrupt handler.
//
WDT_IF_Init(WatchdogIntHandler, MILLISECONDS_TO_TICKS(WD_PERIOD_MS));
/* Enabling the Sleep clock for the Watch Dog Timer*/
MAP_PRCMPeripheralClkEnable(PRCM_WDT, PRCM_SLP_MODE_CLK);
g_ucFeedWatchdog = 1;
g_ucWdogCount = 0;
while(!(ucQueueMsg & (EVENT_IP_ACQUIRED|CONNECTION_FAILED)))
{
UART_PRINT("Trying to connect to AP: ");
UART_PRINT(SSID_NAME);
UART_PRINT("\n\r");
sl_WlanConnect((signed char *)SSID_NAME,
strlen((const char *)SSID_NAME), 0, &secParams, 0);
iConnect = 0;
do{
osi_MsgQRead(&g_tConnection, &ucQueueMsg, OSI_WAIT_FOREVER);
switch(ucQueueMsg)
{
case EVENT_CONNECTION:
iConnect = 1;
break;
case EVENT_IP_ACQUIRED:
iRetVal = 0;
break;
case WDOG_EXPIRED:
//
// disconnect from the Access Point
//
if(iConnect)
{
WlanDisconnect();
}
//
// stop the simplelink with reqd. timeout value (30 ms)
//
sl_Stop(SL_STOP_TIMEOUT);
UART_PRINT("sl stop\n\r");
MAP_UtilsDelay(8000);
//
// starting the simplelink
//
sl_Start(NULL, NULL, NULL);
UART_PRINT("sl start\n\r");
break;
case EVENT_DISCONNECTION:
iConnect = 0;
break;
case CONNECTION_FAILED:
iRetVal = -1;
break;
default:
UART_PRINT("unexpected event\n\r");
break;
}
}while(ucQueueMsg == (unsigned char)EVENT_CONNECTION);
}
iRetCode = MAP_WatchdogRunning(WDT_BASE);
if(iRetCode)
{
WDT_IF_DeInit();
MAP_PRCMPeripheralClkDisable(PRCM_WDT, PRCM_RUN_MODE_CLK);
}
ASSERT_ON_ERROR(iRetVal);
return(iRetVal);
}