AWR1243: TDA2x EVM for cascaded radar development

Satyajeet Ahuja

Part Number: AWR1243
Other Parts Discussed in Thread: TDA2

I have some questions regarding the TDA2x EVM for cascaded radar development. We plan to procure the TDA2x EVM http://www.ti.com/tool/TDA2EVM5777

Do we need to procure the Vision Application Board also? Or we can skip this?
Can we connect the 4 AWR1243 devices to the VIN ports on the EVM? The TDA2x EVM supports VIN1A, VIN2A, VIN4B, VIN5A, VIN6A only
We plan to use this device for CSI2 to parallel conversion
https://toshiba.semicon-storage.com/info/docget.jsp?did=30612&prodName=TC358748XBG
We would like to use ethernet for debug.
SPI will be used for communicating with AWR1243 devices
What is the maximum speed at which VIN ports be operated. I know what if we use only 2 lanes on AWR1243, it can support 900 Mbps on CSI2. Can the VIN ports operate at 900 * 16 = 14.4 Gbps?

I know the complete cascaded development kit will be released by Q1 2019, but can you guys let us know if we are heading in the right direction with our choice above and help us clarify our doubts?

Thanks,

over 5 years ago

0 Piyali Goswami over 5 years ago

TI__Mastermind 30235 points

Satyajeet,

Connecting the TDA2x EVM to 4 chip AWR1243 board to create a cascade radar would be full of hacks. I would suggest to rather wait for the cascade development kit in Q12019 before trying to connect the RF board with the TDA2xx EVM.

VIN can support clocks of upto 165 MHz and the number of data lines per A port can be upto 24. We are using 4 VIN ports each 16 bits running at 150 MHz for capturing 4 AWR1243 devices runnning at 600 Mbps 4 -lanes each.

Thanks and Regards,
Piyali

0 Satyajeet Ahuja over 5 years ago in reply to Piyali Goswami

Prodigy 235 points

Thank you Piyali.

Can you briefly tell us what kind of hacks are needed?
Also, do we need to procure a Vision Application Board for cascaded radar development?

Thanks

0 Piyali Goswami over 5 years ago in reply to Satyajeet Ahuja

TI__Mastermind 30235 points

Satyajeet,

You would need to hack and make sure you are routing the SPI, GPIO lines from the TDA to the 4 AWR1243s. For the VIP interface you would need to get the Vision Application board. You may also need to hack this as well to connect each individual AWR1243 to VIP via the CSI2 to parallel converter.

Thanks and Regards,
Piyali

0 Satyajeet Ahuja over 5 years ago in reply to Piyali Goswami

Prodigy 235 points

Thanks Piyali

Which of the following boards do you recommend?

TDA2x or TDA2Px?

There are these parts numbers with TDA2Px with their descriptions

EVM577PG-01-00-00 DRA76xP/DRA77xP/TDA2Px-ACD ES 1.0 GP EVM Kit
EVM577PBG-01-00-00 DRA76xP/DRA77xP/TDA2Px-ACD EVM CPU Board ES 1.0 GP Kit

At a high level what is the difference between the two?

Thanks,

0 Piyali Goswami over 5 years ago in reply to Satyajeet Ahuja

TI__Mastermind 30235 points

Satyajeet,

EVM577PG-01-00-00: contains the CPU board and Fusion board:
www.spectrumdigital.com/.../

EVM577PG-01-00-00: contains the CPU board only:
www.spectrumdigital.com/.../

If you are planning to use the Fusion board to connect the AWR1243 via FPDLink you may choose to use the Fusion Board.

If you are looking at 4 Chip cascade radar solution, I would still recommend waiting for the cascade Radar development kit.

Thanks and Regards,
Piyali

0 Satyajeet Ahuja over 5 years ago in reply to Piyali Goswami

Prodigy 235 points

Thanks Piyali,

Can you briefly tell me the difference between TDA2x and TDA2Px processors? Which one do you recommend for 4 chip cascaded radar development?

Thanks,

0 Piyali Goswami over 5 years ago in reply to Satyajeet Ahuja

TI__Mastermind 30235 points

Satyajeet,

I would recommend you to go through www.ti.com/.../products.html for the device comparisson.

The choice between TDA2 and TDA2px is determined by the CSI bandwidth you are looking for in your application and performance requirements.
Kindly note the TDA2px can support 2 CSI ports one 4L and one 2L. TDA2x does not have a CSI interface and hence needs a convertor from CSI to parallel for the AWR1243 data.

Thanks and Regards,
Piyali

0 Satyajeet Ahuja over 5 years ago in reply to Piyali Goswami

Prodigy 235 points

Hi Piyali,

There are 2 EVEs in TDA2Px Vs 4 in TDASx Vs 1 in TDA2x. Does EVE have any processing to do in a cascaded radar system? Does it matter how many EVEs are there in our system?

Thanks,

0 Piyali Goswami over 5 years ago in reply to Satyajeet Ahuja

TI__Mastermind 30235 points

Satyajeet,

I would suggest you to go through the videos :
training.ti.com/introduction-processor-sdk-radar-part-1-3
training.ti.com/introduction-processor-sdk-radar-part-2-3
training.ti.com/introduction-processor-sdk-radar-part-3-3

This would help you understand the processing flow. EVE is required for the processing, but the number of cores and the frequency is dependent on the type of radar cubes and frame rates that you would need.

Thanks and Regards,
Piyali

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AWR1243: TDA2x EVM for cascaded radar development