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AWR1843AOPEVM: "Running the Medium Range Radar on AWR1843AOP"

Part Number: AWR1843AOPEVM
Other Parts Discussed in Thread: AWR1843AOP, AWR1843BOOST

Hi,

I am interested in running the Medium Range Radar or MRR demo on AWR1843AOP.

Please tell me what are the changes/modifications needs to be done. 

Thanks in Advance.

Regards,

Ravikumar.

  • Hi,

    First, as described in the MRR demo, it is important to understand that the MRR demo supports two modes

    • Beamforming (MRR): all 3 Tx enabled at the same time
    • MIMO (USRR): one Tx enabled one time at a time

    The MRR demo is not supported Out Of the Box on the AWR1843AOP EVM.

    • However it is possible to run the Beamforming Mode on AOP.
    • The MIMO mode will not run on AOP because the antenna pattern is different from BOOST. The demo would have to be re-designed to run MIMO mode.

    The MRR demo is provided in the Automotive Toolbox in the TI Resource Explorer

    In a Chrome Browser open following link to download the Automotive Toolbox

    dev.ti.com/.../node

    By default the MRR demo supports Beamforming (MRR) and MIMO (USRR) subframes. One must rebuild the demo to support only MRR subframes.

    \labs\lab0007_medium_range_radar\src\common\mrr_config_consts.h

    Update as follows

    /**! @brief The multi-mode Radar mode of operation. */
    //#define SUBFRAME_CONF_MRR_USRR                   /* Two subframes, MRR followed by USRR20. */
    /**! @brief The USRR only mode of operation. */
    //#define SUBFRAME_CONF_USRR                   /* One subframe USRR20. */
    /**! @brief The MRR only mode of operation. */
     #define SUBFRAME_CONF_MRR

     

    In the output the angles will be inverted because the numbering on the Rx antennae on AOP is inverted compared to AWR1843BOOST.

     

    This can be fixed in the GUI by changing the sign of the “y” coordinate

    Thank you

    Cesar

  • Hi Cesar, 

    1) As you mentioned, is this changes are enough for firmware side, or do we need to do any changes.

    \labs\lab0007_medium_range_radar\src\common\mrr_config_consts.h

    Update as follows

    /**! @brief The multi-mode Radar mode of operation. */
    //#define SUBFRAME_CONF_MRR_USRR                   /* Two subframes, MRR followed by USRR20. */
    /**! @brief The USRR only mode of operation. */
    //#define SUBFRAME_CONF_USRR                   /* One subframe USRR20. */
    /**! @brief The MRR only mode of operation. */
     #define SUBFRAME_CONF_MRR

    2)  \labs\lab0007_medium_range_radar\src\common\mrr_config_consts.h

    The above path is only for medium_range_radar or do we able to get the  Beamforming/ Beamsteering also,

    Because I can see the lab0011_mrr_beamsteering in Automotive Toolbox.

    Actually I want to do Beamforming/ Beamsteering for AWR1843AOP EVM.

    Regards,

    Ravikumar.

  • Hi,

    By default the lab0011_mrr_beamsteering demo supports Beamforming (MRR) ONLYsubframes. So, it is not needed to rebuild the demo to support only MRR subframes.

    So, you can load the prebuilt binaries provided for lab0011_mrr_beamsteering on the AOP EVM with no change

    Please use a fan to cool off the AOP board

    Thank you

    Cesar