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help pls stuck with usb to serial chipset driver

Discussion in 'Datasheets, Manuals or Parts' started by Elkariaa, Dec 11, 2015.

  1. Elkariaa

    Elkariaa New Member

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    hi all,
    i just bought a usb to rs232 converter but without a driver or any specifications of the chipset on it, i tried some prolific driver on it but didn't work.
    some driver worked i got the port but not any communication with equipement.
    then tried to cherche the manufacteror, i found it is Shenzhen Reday Electronics Limited with the usb-rs232 : http://redaytech.en.made-in-china.c...ina-USB-to-RS232-Cable-0-9m-R-USB-RS232-.html
    But no specifications on it. Just ask if somone know it or have date sheet for it, that can help me with the chipset model or reference will be so gratful.
    or some tips to know it with some fireware
    with unknown device i have this :
    +
    Prolific USB-to-Serial Comm Port
    Vendor: Prolific
    PnpID: usb\vid_067b&pid_2303
    but it can't be it because no one of the prolific pilotes worked on it.
    thanks for your help
     
  2. ericgibbs

    ericgibbs Well-Known Member Most Helpful Member

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    Hi,
    You have posted a link for a USB to RS232 converter, but your 'specification' is for a USB to Serial Comm converter, which version are you using.?

    I use the USB to Serial comm, [ with the Prolific Driver ] which has TTL levels on TXD and RXD.
    A RS232 specification is for a bi polarity RXD / TXD of approx, typical +/-9v.

    What do you have connected at either end of the converter.?
    E
     
  3. Elkariaa

    Elkariaa New Member

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    good morning,
    thanks for your replay but in the installation i follow there is no defference between usb to rs232 and usb to serial port on specifications here is the link http://plugable.com/2011/07/05/installing-the-plugable-usb-to-rs-232-db9-serial-adapter-on-windows-7
    exepte that i didn't get usb-serial conroller d on it, i maked some recherche on chines manufactror i found that they use chipset ch340 and used prolific drivers but non of the tow driver worked that mean i have unknown chipset that i have to found he model or reference to get the right pilot :p
    and want some hint if it can be identified
    i want to flash a dreambox 500s i have the usb -rs232 converter connected to DB9 Null-cross over cable and conneced to my dreambox when use my feeware to flash it i have no communication betwen my pc and my dream box.
    the communication need only 3 pins:
    Receive Data RD
    Transmit Data
    TD
    Signal Ground
    SG
     
  4. dave

    Dave New Member

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  5. KeepItSimpleStupid

    KeepItSimpleStupid Well-Known Member Most Helpful Member

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    See here http://www.serialcomm.com/serial_rs232_converters/rs232_rs485_to_ttl_converters.aspx lots of choices. The TTL generally is Inverted TTL too

    before you go programming to your heart's content, loop back tx and rx and see if you can communicate with a terminal program.

    Lights are good on these TTL adapters.

    Make sure you know which one you need.
     

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