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TDA4VM: What is default behavior when TDA4VM over heat?

Part Number: TDA4VM


Dear experts,

I am using PSDKRA 7.0 Linux+RTOS mode on TDA4VM.

When it comes to 125C or higher, what will happen on TDA4VM? Will it crash/hung?

Will it reset automatically? Is there any default code to monitor the temperature sensor? Do customers need to write this code?

Thanks & Best Regards!

ZM

  • Hi ZM,

    In Linux there is no support to read temperature.

    In SDK 7.0 PSDKRA we have CSL support as per the FAQ: 

    There is NO Thermal shutdown configuration done on Linux on SDK 7.0.

    Without the above mentioned shutdown configuration SoC will not reset on its own. We need software
    to configure the Thermal shutdown thresholds.

    There are bunch of csl examples:

    $PSDKRA_INSTALL_DIR/pdk_jacinto_07_00_00/packages/ti/csl/example/vtm/vtm_pvt_sensor_temp_alert/vtm_sensor_temp_alert.c

    The above is program temperature alerts.

    $PSDKRA_INSTALL_DIR/pdk_jacinto_07_00_00/packages/ti/csl/example/vtm/vtm_pvt_sensor_maxt_outrg/vtm_sensor_maxt_outrg.c

    The above is for Thermal shutdown max temperature configuration.

    $PSDKRA_INSTALL_DIR/pdk_jacinto_07_00_00/packages/ti/csl/example/vtm/vtm_pvt_sensor_read/vtm_sensor_read.c

    The above is to read the temperature & can be used for monitoring the temperature periodically.

    In general: $PSDKRA_INSTALL_DIR/pdk_jacinto_07_00_00/packages/ti/csl//example/vtm

    Has all the relevant examples that you are looking for. One needs to make use of them and pick the functionality needed.

    Hope i am clear.


    Best Regards,
    Keerthy