/**************************************************************************************************
* @fn SysCtrlWakeupSetting
*
* @brief Setup which peripherals can/cannot wakeup the processor
*
* input parameters
*
* @param None.
*
* output parameters
*
* None.
*
* @return None.
**************************************************************************************************
*/
void SysCtrlWakeupSetting(void)
{
/* GPIO A, C and SM Timer can wake up the processor */
/* CS */
GPIOIntWakeupDisable(GPIO_IWE_PORT_A);
/* MRDY */
GPIOIntWakeupEnable(GPIO_IWE_PORT_B);
/* Sleep Timer */
GPIOIntWakeupEnable(GPIO_IWE_SM_TIMER);
/* USB */
GPIOIntWakeupEnable(GPIO_IWE_USB);
/* Setup MRDY as falling edge */
GPIOPowIntTypeSet(GPIO_B_BASE, GPIO_PIN_2, GPIO_POW_FALLING_EDGE);
}
/**************************************************************************************************
* @fn SysCtrlWakeupSetting
*
* @brief Setup which peripherals can/cannot wakeup the processor
*
* input parameters
*
* @param None.
*
* output parameters
*
* None.
*
* @return None.
**************************************************************************************************
*/
void SysCtrlWakeupSetting(void)
{
/* GPIO A, C and SM Timer can wake up the processor */
GPIOIntWakeupEnable(GPIO_IWE_PORT_A);
GPIOIntWakeupDisable(GPIO_IWE_PORT_B);
GPIOIntWakeupEnable(GPIO_IWE_PORT_C);
GPIOIntWakeupDisable(GPIO_IWE_PORT_D);
GPIOIntWakeupDisable(GPIO_IWE_USB);
GPIOIntWakeupEnable(GPIO_IWE_SM_TIMER);
/* Setup GPIO A, C as a falling edge */
GPIOPowIntTypeSet(BSP_KEY_DIR_BASE, BSP_KEY_LEFT | BSP_KEY_RIGHT |
BSP_KEY_UP | BSP_KEY_DOWN, GPIO_POW_FALLING_EDGE);
GPIOPowIntTypeSet(BSP_KEY_SEL_BASE, BSP_KEY_SELECT, GPIO_POW_FALLING_EDGE);
}
void SysCtrlWakeupSetting(void)
{
/* SM Timer can wake up the processor */
GPIOIntWakeupEnable(GPIO_IWE_SM_TIMER);
}
//*****************************************************************************
//
// Configure sleep timer, put system into deep sleep and watch sleep timer
// interrupt wakeup system again
//
//*****************************************************************************
int
main(void)
{
uint32_t ui32Val;
//
// Set the clocking to run directly from the external crystal/oscillator.
// (no ext 32k osc, no internal osc)
//
SysCtrlClockSet(false, false, SYS_CTRL_SYSDIV_32MHZ);
//
// Set IO clock to the same as system clock
//
SysCtrlIOClockSet(SYS_CTRL_SYSDIV_32MHZ);
//
// Set up the serial console to use for displaying messages. This is
// just for this example program and is not needed for SSI operation.
//
InitConsole();
//
// Display the setup on the console.
//
UARTprintf("Sleepmode timer\n");
//
// Disable UART0 when in deep sleep
//
SysCtrlPeripheralDeepSleepDisable(SYS_CTRL_PERIPH_UART0);
//
// Let system enter powermode 2 when going to deep sleep
//
SysCtrlPowerModeSet(SYS_CTRL_PM_2);
//
// Enable the Sleep Timer wakeup
//
GPIOIntWakeupEnable(GPIO_IWE_SM_TIMER);
//
// Enable sleep mode interrupt
//
IntEnable(INT_SMTIM);
//
// Set timer to 10000 above current value
//
ui32Val = SleepModeTimerCountGet();
SleepModeTimerCompareSet(ui32Val + 10000);
//
// Display the timer value on the console.
//
UARTprintf("Timer val = %d\n", ui32Val);
//
// Wait for UART to be flushed
//
while(UARTBusy(UART0_BASE))
{
}
//
// Go to sleep
//
SysCtrlDeepSleep();
//
// Display the timer value on the console.
//
ui32Val = SleepModeTimerCountGet();
UARTprintf("Timer val = %d (after wakeup)\n", ui32Val);
//
// Done - enter an infinite loop.
//
while(1)
{
}
}
