bs2-->rs232-->USB-->macintosh-->Java or C++

Comments

• Archiver Posts: 46,084

  2002-05-06 09:29 edited 2002-05-06 09:29

  Hi,
  
  This is a copy of an email I sent to someone else (or is it the same
  person??) :-)
  
  It relates to the FTDI USB chips/Modules...
  
  
  For the Mac, you install an Extension from ftdi which creates a "Virtual
  serial port".
  
  That means, that your existing programs that normally talk to the old Mac
  serial port will still believe they are talking to one, and the Extension
  will transfer any calls to the serial port to the FTDI chip instead.
  
  So, as far as writing software goes, you just carry one writing your
  programs, addressing the the serial port.
  
  I'm not sure about how to address a serial port in C++ for the Mac, but in
  RealBasic, it's something like:
  
  serial1.write "Hello!"
  
  As long as you have the extension installed, your program will work on a USB
  based Mac.
  
  Hope this helps,
  
  Cheers,
  
  Ben.
  --
  http://www.lennard.net.nz/
  Ben Lennard, NCEE, Dip EE
  
  Web Hosting and Electronics R&D
  Club Coordinator, Victoria University of Wellington Hockey Club
  
  Hm: +64 4 972 7567
  Mb: +64 21 536 627
  87 Spencer Street
  Crofton Downs
  Wellington
  New Zealand
  
  "To the optimist, the glass is half full. To the pessimist, the glass is
  half empty. To the engineer, the glass is twice as big as it needs to be."
  
  No animals were harmed in the transmission of this email, although the
  Dog next door is living on borrowed time, let me tell you! Those of you
  with an overwhelming fear of the unknown will be gratified to learn that
  there is no hidden message revealed by reading this warning backwards.
  
  
  
  

  ---

  >From: "papercats2000" <olegna78@a...>
  >To: basicstamps@yahoogroups.com
  >Subject: [noparse][[/noparse]basicstamps] bs2-->rs232-->USB-->macintosh-->Java or C++
  >Date: Mon, 6 May 2002 6:46 PM
  >
  
  > I think that my problem is of the most basic nature--software to
  > hardware-- but after searching for weeks for a definite answer, I am
  > almost sure it is hopeless.
  >
  > Basically, I am trying to get numbers from a bs2 controlled sonar
  > circuit into a variable in either java or c++ in my macintosh
  > throught the usb port.
  >
  > I believe I have solved the USB part of this, but now I do not know
  > how I will begin to go about getting the values into the software.
  >
  > Perhaps someone here has done some similar work on the mac and can
  > help me a bit.
  >
  > Thanks
  >
  >
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• Archiver Posts: 46,084

  2002-05-06 15:07 edited 2002-05-06 15:07

  Yes, I did send this to you personally as well. Sorry. I thought it would
  be good to put it on the board for all to see.
  Thanks again, and remember, the info you gave me is not on the internet at
  all!
• Archiver Posts: 46,084

  2002-05-07 05:20 edited 2002-05-07 05:20

  Hi,
  I don't know if this will help, I haven't used any of this, but from a
  distance it looks like you should check out:
  
  http://www.serialio.com/products/serialport/serialport.htm
  
  They have mac versions, old and new. This stuff should work with any
  aftermarket usb-> serial adapter. The way to connect the stamp to a serial port
  is I think identical to how you would do it for the pc, you just need the
  pinouts...
  
  Good Luck, and please, if you make it work, post what you can here. I probably
  need to solve a similar problem myself soon.
  
  Stan
  
  
  
  --- In basicstamps@y..., "papercats2000" <olegna78@a...> wrote:
  > I think that my problem is of the most basic nature--software to
  > hardware-- but after searching for weeks for a definite answer, I am
  > almost sure it is hopeless.
  >
  > Basically, I am trying to get numbers from a bs2 controlled sonar
  > circuit into a variable in either java or c++ in my macintosh
  > throught the usb port.
  >
  > I believe I have solved the USB part of this, but now I do not know
  > how I will begin to go about getting the values into the software.
  >
  > Perhaps someone here has done some similar work on the mac and can
  > help me a bit.
  >
  > Thanks
• Archiver Posts: 46,084

  2002-05-07 09:53 edited 2002-05-07 09:53

  Thanks Stan. I saw that page during my week-long struggle, but I kept
  searching for things that looked cheaper and finally settled on ftdi usb
  chips and drivers.
  Again thanks. I CAN'T BELIEVE i GET HELP WITH SUCH A SPECIFIC PROBLEM OOPS
  SOrry for the all caps.
  ~Angelo