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USB to Serial Adapter — Parallax Forums

USB to Serial Adapter

wood6626wood6626 Posts: 1
edited 2010-09-30 20:31 in BASIC Stamp
Okay, so I bought a USB to 232 Adapter from Parallax to run my Basic Stamp 2. However, no matter what I do, I can't seem to get the software to "Identify" the board. However, I do get "echo", or whatever that is all about.

I have tried to turn the latency timer down to 1 from 16. The driver that I downloaded was from the following website:

http://www.ftdichip.com/Drivers/FT232-FT245Drivers.htm#VCP

I am told that that driver is from FTDI. My professor says that the driver isn't exchanging the correct "handshake".

Anyways, I have Windows Vista on a Vaio 16.4 laptop. Is there someone that can really help me figure out exactly what the problem is? Am I not thinking of something? Oh yeah, and by the way...what in the heck is VCD?

Comments

  • electrosyselectrosys Posts: 212
    edited 2010-09-30 04:25
    Try the FTDI driver, from Parallax web pages:
    http://www.parallax.com/ProductInfo/Accessories/FTDIUSBDrivers/tabid/530/Default.aspx
    It's better to, Uninstall the old FTDI driver first, and install the new one from Parallax.
  • Mike GreenMike Green Posts: 23,101
    edited 2010-09-30 07:20
    1) Make sure your USB to serial adapter is not plugged in when you try to install the driver. Uninstall the current driver before trying to reinstall the "new" one.

    2) The driver from FTDI's website should be ok.

    3) Make sure that the Stamp has power. Identifying the Stamp is an active conversation between the Stamp and the Stamp Editor.

    4) VCD = "Video CD", a standard format for CDs that works somewhat like a DVD in that it holds short movies in relatively low resolution formats.

    5) VCP = "Virtual Comm Port", a standard USB protocol that provides for the establishment of a communications channel using USB that looks like a full duplex serial port with all the standard handshaking and other control lines used.
  • dandreaedandreae Posts: 1,375
    edited 2010-09-30 09:35
    Here is a zip file that has FTDI Clean files. Run the the FTDI Clean files and this will remove any corrupt FTDI drivers that you may have. After running the FTDI Clean, load the FTDI VCP drivers from this link:

    http://www.ftdichip.com/Drivers/VCP.htm



    Dave
    zip
    zip
    FTClean.zip
    442K
  • Buck RogersBuck Rogers Posts: 2,178
    edited 2010-09-30 20:31
    Dave Andreae (Parallax) wrote: »
    Here is a zip file that has FTDI Clean files. Run the the FTDI Clean files and this will remove any corrupt FTDI drivers that you may have. After running the FTDI Clean, load the FTDI VCP drivers from this link:

    http://www.ftdichip.com/Drivers/VCP.htm



    Dave

    Hello!
    Excellent idea Dave.:idea: I just wish I thought of it first. It happens however that I bought the same adapter. I also updated my drivers to the ones from the FTDI shop, before the adapter was bought. No problems so far.


    I also use the FT232R device as break-out-board from Sparkfun for managing TTL logic, as driven by a program from Agilent VEE 9.2.

    It turns out that they were a good start for what I've got planned for the BS2.
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