AWR1443BOOST: AWR1443 BPM MIMO configuration

MRAM

Part Number: AWR1443BOOST

1-We are trying to apply a BPM MIMO code however the radarstudio GUI is confusing

Our understanding is that all Transmitters are ON and we need only one bit to set the phase to 0 or 180 but there are two bits here which are called TX off and TX on.

What are TXoff and TXon bits and how do you set them for phase 0 or 180 for example for TX1 ?

Explanation in radarstudio manual is very basic and does not answer this question.

Please provide an example

2-After these settings are done what are the follow up steps we need to follow for BPM MIMO? how do we make sure the radar is not TDM MIMO anymore and working in BPM mode.

Thanks

over 7 years ago

0 Raghunandan Kamath over 7 years ago

TI__Mastermind 22155 points

Hello,

Please refer to the following app note www.ti.com/.../swra554.pdf

-Raghu

0 MRAM over 7 years ago in reply to Raghunandan Kamath

Prodigy 145 points

Hello,

We have checked this document also but does not answer our questions for BPM. The document describes general procedure which we understand but control setting through the GUI is confusing .

Thanks

0 Raghunandan Kamath over 7 years ago in reply to MRAM

TI__Mastermind 22155 points

You can use the BPMConfig tab. There will be a path to the csv file in a textbox. You can modify the csv file and load your BPM configuration in the csv file. After modifying the csv file, use the "Load" button so that RadarStudio reads the csv file and configurations for all chirps will be displayed in the table below. Next you can click on "Activate" button to issue these configurations to the device.

This is also answered in below post:
e2e.ti.com/.../2315083

Hope this helps your understanding.

-Raghu

0 MRAM over 7 years ago in reply to Raghunandan Kamath

Prodigy 145 points

Hello Raghu,

Thanks. Please read my first question carefully in the first post. We understand all you are talking about but main question is
What are TXOFF and TXON bits in this mode?

0 MRAM over 7 years ago in reply to MRAM

Prodigy 145 points

Any response to this question?

0 bginzz over 7 years ago in reply to MRAM

TI__Prodigy 545 points

The GUI allows you to set independent binary phase values for the time between the start of each chirp and the TX Start Time (TX OFF) and the portion of the chirp after the TX Start Time (TX ON). For most practical purposes, it is recommended to set the TX OFF and TX ON BPM settings to be the same within a chirp, and then you can configure them across chirps as needed for your BPM code sequence.

Regards,
Brian

0 MRAM over 7 years ago in reply to bginzz

Prodigy 145 points

Thanks a lot Brian. This clarifies it now. This was not mentioned anywhere in your documents.

One more question:

How do we select between TDM and CDM in the GUI? How do we ensure that the radar is configured in CDM mode?

We could not find anywhere in the GUI to do this. Please clarify this as well.

0 Raghunandan Kamath over 7 years ago in reply to MRAM

TI__Mastermind 22155 points

To perform TDM:

SensorConfig->Manage Chirps

Change the configuration as shown, different chirps have different TX enabled. Once configuration is set, Save->Load-> Activate.

For CDM:

In BPMConfig, do the setting as shown below for different chirps.

The configuration shown is each row is different chirp.

Let us know if you need more details.

Thanks,

Raghu

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AWR1443BOOST: AWR1443 BPM MIMO configuration