TDA4AL-Q1: We can't find watchdog code in j721s2 dts

Hi, 

I believe you are looking for a way to control PMIC watchdog from MCU1_0 right?

Did you get a chance to look at PMIC watchdog test at <PDK>/packages/ti/drv/pmic/test/wdg_test ?

Does this reference not help with your use case?

Regards,
Parth

Hi,

1:

Parth Nagpal said:

I believe you are looking for a way to control PMIC watchdog from MCU1_0 right?

yes

2:

Parth Nagpal said:

Did you get a chance to look at PMIC watchdog test at <PDK>/packages/ti/drv/pmic/test/wdg_test ?

This code has been verified and can be used ?

Thanks

Hi,

Thanks for pointing this out. This test does not build for J721S2. Ideally it should not be packaged with the release as well. I'll raise a bug to remove that from upcoming release.

Currently we do not have any reference example for this. Re-routing this to our PMIC team for further comment on this.

Regards,
Parth

Renf Shi said:

1:

Parth Nagpal said:

I believe you are looking for a way to control PMIC watchdog from MCU1_0 right?

yes

2:

To control PMIC watchdog from I2C1 bus line, set configure GPIO1 or GPIO2 of the primary PMIC to anything other than I2C2. Then watchdog can be accessed via I2C2_ID address. I2C2_ID is 0x12 for most of our devices. 

Regards,

Mike

Hi

Input testPmicWDG function in vision_apps/platform/j721s2/rtos/mcu1_0/main.c file

Code:

void testPmicWDG()
{
    UART_printf("wyp test pmic\n");
    /* Pointer holds the pPmicCoreHandle */
    Pmic_CoreHandle_t *pPmicCoreHandle = NULL;
    int32_t pmicStatus = PMIC_ST_SUCCESS;
    Pmic_WdgCfg_t wdgCfg_rd = {PMIC_WDG_CFG_SETPARAMS_FORALL, };
    Pmic_WdgCfg_t wdgCfg    =
    {
        PMIC_WDG_CFG_SETPARAMS_FORALL,
        750000U,
        4950U,
        4950U,
        PMIC_WDG_FAIL_THRESHOLD_COUNT_5,
        PMIC_WDG_RESET_THRESHOLD_COUNT_6,
        PMIC_WDG_QA_MODE,
        PMIC_WDG_PWRHOLD_DISABLE,
        PMIC_WDG_RESET_ENABLE,
        PMIC_WDG_RETLONGWIN_DISABLE,
        PMIC_WDG_QA_FEEDBACK_VALUE_2,
        PMIC_WDG_QA_LFSR_VALUE_1,
        PMIC_WDG_QA_QUES_SEED_VALUE_5,
    };
    pmicStatus = Pmic_wdgEnable(pPmicCoreHandle);
    pmicStatus = Pmic_wdgSetCfg(pPmicCoreHandle, wdgCfg);
    pmicStatus = Pmic_wdgGetCfg(pPmicCoreHandle, &wdgCfg_rd);
    // pmicStatus = Pmic_wdgStartTriggerSequence(pPmicCoreHandle);
    // pmicStatus = Pmic_wdgStartQaSequence(pPmicCoreHandle,1U,PMIC_WDG_WAIT_CNT_MIN_VAL);
    pmicStatus = Pmic_wdgQaSequenceWriteAnswer(pPmicCoreHandle);
    // pmicStatus = Pmic_wdgDisable(pPmicCoreHandle);
    UART_printf("wyp test pmic end\n");
}

The above code;10 minutes later will not let cpu reset;

1: How can I modify the PMIC watchdog to work properly?

2: How to set the dog feeding interval

3: How to feed dogs

Thanks

Hi,

Renf Shi said:

Code:

Is the code you provided us referred from the PDK or the Vision app?

Regards,

Karthik