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Original question:

AWR6843ISK: how to estimate cod execution time and where to get the log value

AWR6843ISK: AWR6843ISK UART direct connection

Mani D
Intellectual 270 points
Part Number: AWR6843ISK
Other Parts Discussed in Thread: AWR6843

Tool/software:

Hi Ti team,

I am using AWR6843ISK EVM standalone card ,The board is connected using USB cable from PC and able to run with TI provided application(ex:outofbox demo) and visualize the point cloud data. 

As per my understanding there is an "I/O Controller Interface IC USB to Dual UART bridge-CP2105-F01-GMR from silicon LAB (" which takes care of USB to UART data interfaces), so we are able to interface and use with UART ports at our PC with configuring necessary driver.

My requirement is to directly connect the UART(TX,RX) signals from AWR6843ISK EVM standalone card to my system(i do not want to connect Via USB Cable connection to PC and board )  and check the point cloud data .

My question:

1. can you confirm ,how i can connect it directly to UART ? is there any existing provision to do it?

2. and also confirm what voltage standards/ level will be getting from UART ,so i can ensure necessary Voltage standards are maintained at my system side too.

3. As per my understanding ,power supply to the AWR6843ISK EVM standalone card also supplied via USB connector only, so if i am connecting UART directly without USB cable connection,

   in this case ,how to supply the power to the AWR6843ISK EVM standalone card  to work and also confirm Power supply voltage and Current rating required ?

Note: My requirement is to Run AWR6843ISK EVM standalone card alone (with out Integrating addon cards like  mmwavebooster card /DCA1000 card)  

regards,

Mani

  • 0
    TI__Intellectual 2100 points

    Hi Mani,

    1. You can take off the highlighted zero-ohm resistances and bring out the UART RX and TX lines from that point.

    2. The voltage level for UART is 3.3V IO.

    3. You can still supply power using the USB connector after disconnecting the USB to UART converter.

    Regards,

    Sreedeep

  • 0 in reply to Sreedeep K S
    Intellectual 270 points

    hi sreedeep,

     thanks for your reply.

    i have few more clarification,

    1. since SMD components are used ,it might be difficult to remove those resistor and make the direct connection for UART RX and TX,

    can you confirm ,is there any Jumper pins or test points or connectors (these connections are brought out ),so i can directly use it ?

    2. I can see from the image shared ,i see two set of com ports (standard ,enhanced ) are available on CP2105-F01-GMR

          set 1(enhanced)  RXD_ECI,TXD_ECI (pin 12,pin13) 

          set 2(standard )  RXD_SCI,TXD_SCI (pin 20,pin21)

    and we also set the com ports at the applications before  running (TI mm wave visualizer app serial port screenshot attached for your reference-which is used to visualize the output point cloud data of TI outofbox demo )

    a)can you confirm ,how many UARTS are there at AWR6843 device ,

    b)if i have to make direct access to UART TX and RX, is it sufficient to make changes suggested by you on previous reply or do i need to do changes for any additional UART(please confirm)?

    regards,

    Mani