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IWR1443BOOST: XDS110 Uart Input / Output

Jason Parmenter
Intellectual 410 points
Part Number: IWR1443BOOST
Other Parts Discussed in Thread: IWR1443, ENERGIA

Hi Everyone!

I have been playing around with the IWR1443 High Accuracy Lab and am successfully configuring the device using the CLI and reading the data via a Serial port emulator (CoolTerm).  I have been able to change the output baud rate and recompile and still see the correct data.  I am now at the point where I need to start integrating this thing into a telemetry project as the end goal is to get rid of the USB-Host (PC) and start interacting with the device directly via 3.3V - 5V Serial (Rx, Tx) or SPI.  The end goal for me is to simply write an Energia sketch that would allow me to read the values streaming from the IWR1443 ( or maybe I should say from the XDS110?) as in the High_Accuracy_Lab but over UART rather than USB.

Can someone clarify and help me understand what type of communication is used between the IWR1443 and the XDS110 in this lab or in general for configuration and reading values?

Is the XDS110 merely a USB to UART Converter in this application eval module? 

Can I replace the XDS110 with my own MCU and read streamed values from the IWR1443 and utilize the CLI commands over a Serial port?  (Preferably the same Serial port before the Conversion to USB by the XDS110 so the code change is minimal or none at all.)  

Sorry if there are some wrong assumptions in those questions but I would really appreciate any help in reading streamed values and writing configuration via CLI over a serial port and not USB.

Many Thanks!

  • 0
    TI__Genius 11405 points

    Hi,

    As shown in the diagram, it's UART and JTAG signal goes to XDS110. Two UART ports -- config port and data port. Yes, XDS110 is to convert UART to USB.

    XDS110 also help support JTAG emulation for ccs debug.

    You can replace XDS110 with MCU. A reference design TIDEP-0091 use SPI communication between IWR14xx and MCU. 

    Let me know if you have any question.

    Regards,

    Michelle

  • 0 in reply to Michelle Liu
    Intellectual 410 points

    Michelle,

    Thank you so much for your response.  I still have another question that I hope you haven't already answered.

    Michelle Liu said:

    As shown in the diagram, it's UART and JTAG signal goes to XDS110. Two UART ports -- config port and data port. Yes, XDS110 is to convert UART to USB.

    Michelle,

    Which pins exactly are used for UART on the IWR1443 Chip?  In the schematic clearly RX1, TX1, RX2, TX2, RX3, TX3 are not connected.  The RS232 Rx and RS232Tx pins are connected but I don't think there is anything happening on those pins in this demo.  Using the schematic above, can you tell me which pins are considered the "config port" and "data port".

    Thanks!

  • 0 in reply to Jason Parmenter
    TI__Genius 11405 points
    RS232Tx/RX is for config port
    AR_mss_logger is for data port

    Regards,
    Michelle