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EVM430-i2040S not getting detected

ANIKET
Prodigy 340 points
Other Parts Discussed in Thread: EVM430-I2040S

We recently purchase TI EVM430-i2040S for LED driver testing, but we find that after doing all the tricks mentioned in the instruction sheet (along with the KIT), it still not detecting our desktop computer, we have a desktop computer and XP operating system, we have RS232 communication port in the desktop computer and we also try it with the RS232 to USB converter for detection of the Evaluation board but it still not detecting on the PC

  • 0
    Guru 27285 points

    Yourboss25 said:
    , we have a desktop computer and XP operating system, we have RS232 communication port in the desktop computer and we also try it with the RS232 to USB converter for detection of the Evaluation board but it still not detecting on th

     What adapter are you using?

     Is this adapter for programming debugging or to communicate to module as is?

     To communicate an ordinary RS232 port is ok or an adapter again RS232 to USB. Communication need be activated, program resident I am not sure is enabled for communication.

     To debug it require an launchpad used as programmer SBW or FET UIF for access, an isolator is also needed if you wish to debug code when connected to mains otherwise you can burn evaluation pc and if particularly unfortunate also yourself.

  • 0 in reply to Roberto Romano
    Prodigy 10 points

    dear sir,

    please help me that which OS i suitable for EVM we still have detection problem.

  • 0 in reply to himanshu arya
    Guru 27285 points

    himanshu arya said:
    we still have detection problem.

     Detection of whath?

     

    himanshu arya said:
    please help me that which OS i suitable for EVM

     What this mean?

     Plese try reword your request or ask help from someone more proficient on English. It is very difficult try understand your request.

  • 0 in reply to Roberto Romano
    Guru 227245 points
    It's entertaining to read the communication of two non-native speakers as a third one. :)

    Redundancy helps. So write more (with different words) to be understood better.
  • 0 in reply to Jens-Michael Gross
    Guru 27285 points

    Jens-Michael Gross said:
    It's entertaining to read the communication of two non-native speakers as a third one. :)

     Oh Yea JMG, sorry for mistyped word, I don't like this reduced contrast and I get tired in a short time so I get here at chunks, on WE I see you are free and no spare unanswered messages are in place ;) 

    Nice to meet forever ;)

  • 0 in reply to Roberto Romano
    Guru 227245 points
    Still some (~180), but I'm slowly catching up (was lagging >500) :)

    Regarding the original question: I just took a look at the product page and it says "Built-in _isolated_ RS232 external communication interface"
    "Isolated" might be the key. The usual way to generate the RS232 signals on the isolated side (without an isolated DC/DC converter) is to draw the required supply from other RS232 signals such as RTS or DTR (pin 4 and 7 of the DS9 connector, must be logic low state, so +3..+12V are on these pins). Those signals must be connected, and set to the proper signal level, or else the RS232 output can't generate the signal levels and the PC won't see anything. Take a closer look at the schematics (in the application note, available from the EVM product page) and you'll likely see what I mean.
    In this specific case, it also seems to draw power from the received data during receive idle (-3 to -12V)

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