IWR1642BOOST: UART Interfacing with Nvidia Jetson Nano

Hi Celine

What is the end application?

I've asked a hardware expert to look into this.

Regards,

AG

Hi

Essentially, I want to be able to collect vital signs data on the Nvidia and then send it to a cloud server.

Hello Celine,

  60GHz devices are recommended for the vital sign detection. And from Regulatory standard 60GHz frequency band is accepted in most of the country. 

You could refer to few examples shown below links.

68xx - Vital Signs (ti.com)

TIDEP-01023 Child-presence and occupant-detection reference design using 60-GHz antenna-on-package mmWave sensor | TI.com

Unfortunately, we don't have  wiring diagram, However for collecting the processed data to other platform you don't need LVDS interface.  You could use the UART interface itself, in this case MSS_logger is being used to send the processed data. mmWave devices have built in processor for performing signal processing operation, hence LVDS interface is not needed. 

Same pin (MSS_LOGGER) could be used for other devices as well, one has to make sure UART baud rates should be same between the two platforms. 

Also UART pins should not be driven from the external processor when the VIO supply is not present, it may damage the device. 

Thanks and regards,

CHETHAN KUMAR Y.B.

Thank you. Can you describe in more detail how am I connecting the nvidia to the sensor then?

Hello Celine,

     For more details on the Nvida processor connectivity you may need to contact NVIDA team.

However, You could connect MSS logger into external host processor on the UART pins. i.e. MSS_LOGGER is a UART Tx pin from the mmWave sensor that need to be connected to UART Rx pin of the host processor as shown below done on the EVM. 

Thanks and regards,

CHETHAN KUMAR Y.B.

Thanks that is very helpful. And the connection of the MSS_LOGGER and UART Rx pin of the nvidia is the only connection that needs to be made? Also just to double check is the MSS_LOGGER pin number 9 of the J5 pin?

Thanks. So just to verify I am connecting PIN 9 of the J5 connector to the Rx of the nvidia. And connecting PIN 2 of J5 to the GND of the nvidia. I am still confused as to what needs to be disconnected can you explain?

Hi,

How do I disconnect that? Additionally, with the caution you are saying that I need to connect to the external processor while the sensor is connected to a power source?

Thanks

Where is the R136 resistor, I am looking at the board and I can only see the R210 and R211 resistors. Is there a way you can take a picture of the actual resistor and its location on the board?

Thank you very much. By removing the resistor, can I still connect to my Windows PC over USB? Also, just to make sure removing the resistor is the only thing I need to do before connecting to nvidia?

Thank you. Does this mean I will not be able to run demos and visualize data when connected to my PC?