MSPM0L1306: MSPM0L1306

Hi,

1st in Watchdog Reset.

Did you enter low power mode and disable Watchdog in low power mode?

Please paste your code using Insert - Code fuction in your edit tools.

2nd In UART

Where the device halt? Did device enter the [Default_Handler] or somewhere else?

Thank you.

Hi Helic,

Thanks for your response.

Watchdog is working without connecting USB port(Docklight). I think this issue is also because of UART (USB).

Controller is sometime halting in Default handler. and sometime it was showing no source available for DL_UART_isRxFIFOEmpty.

Please refer screengrab.

FYI, am using MSPM0L1306 Launchpad for testing is it same behavior will be there for MSPM0L1306 

Thank you

Hi,

I mean, in your syscfg-WWDT-configuration, do you [enable WWDT Running During Sleep]?

And do your main loop enter the low power mode waiting for watchdog reset?

And in main loop waiting for the UART connection in low power mode?

In the screengrab, It seems your code is stuck in DL_UART_isRxFIFOEmpty function, in dl_uart.c & .h.

It's normal that no source available in this function.

There are many can cause this, such as wake up by UART from low power mode.

uint8_t DL_UART_receiveDataBlocking(UART_Regs *uart)
{
    while (DL_UART_isRXFIFOEmpty(uart)) {
    };

    return DL_UART_receiveData(uart);
}

__STATIC_INLINE bool DL_UART_isRXFIFOEmpty(UART_Regs *uart)
{
    return ((uart->STAT & UART_STAT_RXFE_MASK) == UART_STAT_RXFE_SET);
}

Thanks.