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PROCESSOR-SDK-DRA8X-TDA4X: Thermal shutdown alerts

Dipti Natu
Intellectual 700 points

Part Number: PROCESSOR-SDK-DRA8X-TDA4X

Hello,

We have developed an application for TDA4x for monitoring temperature.
To do this we have generated certain dummy load on each core (70% or 100%), while the cores are loaded to this point, we use the temperature sensor to monitor the temperature rise.
In addition to the existing application, we have a requirement to provide some alert to the user once a particular threshold is reached and thermal shutdown begins.
We referred the TRM to get more information and below is our understanding :
1. There are 4 alerts GT_TH1_ALERT, GT_TH2_ALERT, LT_TH0_ALERT, THERM_MAXTEMP_OUTRANGE_ALERT that will occur when tempertaure exceeds the programmed threshold corresponding to the alerts.
2. These alerts can be enabled using WKUP_VTM_TMPSENS_CTRL_j,WKUP_VTM_TMPSENS_CTRL_j, WKUP_VTM_MISC_CTRL registers.
3. The status of the alerts can be observed using WKUP_VTM_TMPSENS_STAT_j register.
4. The thresholds for the alerts can be set in WKUP_VTM_TMPSENS_TH_j, WKUP_VTM_TMPSENS_TH2_j, WKUP_VTM_MISC_CTRL2 register.
Please let us know if the above understanding is correct and add if we are missing anything in order to fulfil the requirement?

Are there any existing examples that provide this functionality?

Thanks & Regards,

Dipti 

  • 0
    TI__Guru**** 167420 points

    Hello Dipti,

    From the RTOS PDK we have the APIs already available:

    packages/ti/csl/example/vtm/vtm_pvt_sensor_temp_alert/vtm_sensor_temp_alert.c:   -----> GT_TH1_ALERT, GT_TH2_ALERT, LT_TH0_ALERT
    packages/ti/csl/example/vtm/vtm_pvt_sensor_maxt_outrg/vtm_sensor_maxt_outrg.c  -------> THERM_MAXTEMP_OUTRANGE_ALERT

    Can you please use them & resolve this thread?

    Best Regards,
    Keerthy