TIDEP-01012: AWR2243+TDA2x: cascading radar: How to issue API via UART

Taro Shibata

Part Number: TIDEP-01012
Other Parts Discussed in Thread: AWR2243

Hi,

In mmWave Studio, it looks like mmwavelink API commands are sent from Host PC to TDA2x via Ethernet.

In PROCESSOR SDK VISION also, the API commands are sent via Ethernet.

Is my understanding correct?

Is it possible to issue the API via UART instead of Ethernet?

Thanks,

-Shibata

0 Cesar over 5 years ago

Hi.

The mmwave link APIs are sent through SPI

thank you

Cesar

0 Taro Shibata over 5 years ago in reply to Cesar

Hi Cesar,

I understand the control I/F between TDA2x and AWR2243 is SPI.

How about the control interface between Host PC and TDA2x?

In lua script (for example, “Cascade_Configuration_TestSource.lua”) ar1 functions are called to configure AWR2243.

Could you please let me know how these ar1 functions are passed to AWR2243 via TDA2x?

In "mmwave_dfp_user_guide.pdf", I found below description:

“In the case of cascade chip, SPI is emulated over Ethernet using the TDA2XX device.”

Is it possible to emulate SPI over UART?

Thanks,

-Shibata

0 Cesar over 5 years ago in reply to Taro Shibata

Hi,

The AWR2243 must receive SPI messages, it can't receive UART messages.

So, if the host sends UART messages than there must be some hardware interface that converts UART to SPI before the messages are received by AWR2243.

This is not possible with the AWR2243+TDA imaging cascade kit

thank you

Cesar

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