LPC4357 can't wakeup from deep power down by wakeup0 pin

lpcware — Wed, 15 Jun 2016 19:19:30 GMT

Content originally posted in LPCWare by tkggitfk24 on Wed Mar 02 22:38:04 MST 2016
I am using the lpcopen library and Keil MCB 4357 Board. After power up, the board will enter deep power down mode, then I press the wakeup0 key, but the board can't be waked up(as good as reset).

My questions are:
1. Chip_EVRT_Init() function will clear all status bit in event router, but actually, it does not really clear all the status. the status register is read as 0x1F7FBFE, why can't be cleared?

2. After entering deep power down mode, why can't be waked up?I already enabled this.

bool power_enabled = false;
bool key_pressed = false;

int main(void)
{
    SystemCoreClockUpdate();
    Board_Init();

    DEBUGSTR("In main()\r\n");

    /* Initialize the Event Router */
    Chip_EVRT_Init();
    PMC_Evrt_Configure(EVRT_SRC_WAKEUP0);

    if (key_pressed)
    {
        DEBUGSTR("Power Enabled\r\n");
        power_enabled = true;
    }
    else
    {
        DEBUGSTR("Enter Sleep Mode in mian()\r\n");

        /* Call Pre SleepPowerDown function */
        PMC_Pre_SleepPowerDown();

        /* Goto Deep Sleep mode */
        Chip_PMC_Set_PwrState(PMC_DeepPowerDown);

        /* Wake up from Deep power down state is as good as RESET */
        while (1) {}
    }

    for(;;)
    {
        Board_LED_Toggle(0);
        DelayUs(200000);
    }
}

void EVRT_IRQHandler(void)
{
    if (Chip_EVRT_IsSourceInterrupting(EVRT_SRC_WAKEUP0)) 
    { 
        Chip_EVRT_ClrPendIntSrc(EVRT_SRC_WAKEUP0);
        
        if (power_enabled)
        {    
            power_enabled = false;
            /* Call Pre SleepPowerDown function */
            PMC_Pre_SleepPowerDown();

            /* Goto Deep Sleep mode */
            Chip_PMC_Set_PwrState(PMC_DeepPowerDown);

            /* Wake up from Deep power down state is as good as RESET */
            while (1) {} 
        }
        else
        {
            key_pressed = true;
        }
    }
}

Re: LPC4357 can't wakeup from deep power down by wakeup0 pin

lpcware — Sun, 19 Jun 2016 01:03:42 GMT

bump

Re: LPC4357 can't wakeup from deep power down by wakeup0 pin

justinfuller — Thu, 10 Nov 2016 15:33:57 GMT

I'm also experiencing this issue. Can anyone from NXP offer some insight?

topic Re: LPC4357 can't wakeup from deep power down by wakeup0 pin in LPC Microcontrollers

LPC4357 can't wakeup from deep power down by wakeup0 pin

Re: LPC4357 can't wakeup from deep power down by wakeup0 pin

Re: LPC4357 can't wakeup from deep power down by wakeup0 pin