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AWR1243: Cascading with advanced frame configuration

Dmitry Trots
Intellectual 450 points

Part Number: AWR1243

Hello!

I want to use AWR1243P in cascading mode and use sub-frames. There are several questions:

1) Is it correct that I want to use master AWR1243 in software trigger mode and slaves with hardware trigger mode?

2) From Interface Control Document I understand that AWR1243 in master mode transmit sync pulse for every frame, but in the post e2e.ti.com/.../784018 Jitendra Gupta said that I need to provide hardware trigger at every burst if I used sub-frames. Can AWR1243 in master mode provide hardware syncronization of AWR1243 in slave mode for several sub-frames?

Thanks for your help.

With Best Regards,
Dmitry.

  • 0
    TI__Guru 70810 points
    Hi Dmitry,
    Here are my comments to your queries-

    1. Master:Software and Slave:Hardware trigger-> it requires in the cascade setup when Master will start the frame at rlSensorStart API invocation and at the same moment master provides the SYNC pulse to all the slaves (configured in HW trigger) to synchronize all the device framing.
    Other option can be to configure all the devices (including Master) in HW trigger mode and provide the SYNC pulse from external processor to trigger the frame at all the devices.

    2. In case of legacy frame configuration: master transmit SYNC pulse at every frame.
    In case of Advanced frame config: by default master transmit SYNC pulse at every burst (of each syb-frame). This option can be change to enable SYNC pulse at sub-frame boundary using rlSetAdvFrameConfig API (rlAdvFrameSeqCfg->subFrameTrigger = 1). With this option Master will provide SYNC pulse at every sub-frame boundary to the slaves (instead of burst).


    Regards,
    Jitendra