AWR1843: nested interrupt in DSS

Hi,

While debugging you would need to check if the global interrupts are disabled or not in the ISR.

For DSS

The interrupts are created through the Event Combiner

C:\ti\mmwave_sdk_03_05_00_04\packages\ti\drivers\osal\src\ti_rtos\HwiP_tirtos.c

/*
 *  ======== HwiP_create ========
 */
HwiP_Handle HwiP_create(int32_t interruptNum, HwiP_Fxn hwiFxn,
                        HwiP_Params *params)
{
#ifdef SUBSYS_MSS
    Hwi_Handle handle;
    Error_Block eb;
    Hwi_Params  hwiParams;

    Error_init(&eb);
    Hwi_Params_init(&hwiParams);

    /* Overwrite the BIOS HWI Parameters with the supplied arguments */
    hwiParams.instance->name = params->name;
    hwiParams.arg            = (xdc_UArg)(params->arg);
    hwiParams.priority       = (int32_t)params->priority;
    hwiParams.type           = params->type==HwiP_Type_FIQ? Hwi_Type_FIQ : Hwi_Type_IRQ;
    hwiParams.enableInt      = params->enableInt;

    /* Register the Interrupt: */
    handle = Hwi_create(interruptNum, (Hwi_FuncPtr)hwiFxn, &hwiParams, &eb);
    DebugP_assert(handle != NULL);

    return ((HwiP_Handle)handle);
#endif
#ifdef SUBSYS_DSS
    /* go through event combiner */
    EventCombiner_dispatchPlug(interruptNum, hwiFxn, params->arg, params->enableInt);
    return((HwiP_Handle)interruptNum);
#endif

}

C647x DSP CPU

TMS320C674x DSP CPU and Instruction Set User's Guide