Shop OBEX P1 Docs P2 Docs Learn Events
Has anybody used the Micromega uM-FPU? — Parallax Forums

Has anybody used the Micromega uM-FPU?

UAEmbeddedUAEmbedded Posts: 5
edited 2004-08-12 02:33 in BASIC Stamp
Hello all,
I was intrigued by the Micromega uM-FPU on the Parallax website.· Has anyone used this yet?· If so, could you point me to a datasheet?
I realize that this is probably sacrilege on this forum, but my job requires that I work with other microprocessors than the BASIC Stamp and I was hoping to find a datasheet that tells the SPI instruction format for the device so that I could interface it with anything with an SPI interface.· I don't really want to reverse-engineer the command format from the BASIC sample code unless I must.
Thanks in advance.

Comments

  • Bruce BatesBruce Bates Posts: 3,045
    edited 2004-08-10 08:57
    UAEmbedded -

    I honestly couldn't find that product on the Parallax web site, but the datasheet for that product can be found near the bottom of the page here:
    http://www.rev-ed.co.uk/picaxe/software.htm

    Regards,

    Bruce Bates
  • UAEmbeddedUAEmbedded Posts: 5
    edited 2004-08-10 12:53
    Hi,

    The Parallax page is http://www.parallax.com/detail.asp?product_id=604-00030a

    I had found the PICAXE page using Google.· What I am wanting to find, if possible, is a datasheet on the device itself rather than an application note on using the device with a specific microprocessor.· There are application notes for both the BASIC Stamp and Javelin on Parallax's site.

    I do appreciate the help.
  • AlWilliamsAWCAlWilliamsAWC Posts: 135
    edited 2004-08-10 13:04
    I can't speak for the uM-FPU, but you can find all the details about the PAK math coprocessors protocols at http://www.awce.com/doclib.htm. The PAK-I, II, and IX (basic, advanced, and advanced+A/D) use the same protocol (SHIFTIN/SHIFTOUT for the Stamp). The PAK-XII (ASCII I/O + A/D) uses straightforward ASCII data and is much like using an HP calculator (it uses RPN). So sending serial data makes it work.

    Regards,

    Al Williams
    AWC
    http://www.awce.com
  • Bruce BatesBruce Bates Posts: 3,045
    edited 2004-08-10 13:07
    UAEmbedded -

    The web page I reference before has the datasheet there available for download. I was able to download it from the link near the bottom of that referenced page. If you have trouble downloading it, or can't find it, let me know and I'll shoot you a copy offlist.

    Bruce Bates
  • UAEmbeddedUAEmbedded Posts: 5
    edited 2004-08-10 13:44
    Thanks all,
    I'll go through these links carefully and see if I can find the information I am wanting.
    Much appreciated.
  • camtcamt Posts: 45
    edited 2004-08-12 02:33
    Hi,

    The information on the Parallax website is specific to the BASIC Stamp and the Javelin Stamp, but you can contact us directly for further information. There's a Micromega website at http://www.micromegacorp.com that includes contact information.

    A new uM-FPU IDE is just going into beta. It provides an expression compiler, debugger and the ability to store functions on the uM-FPU. The compiler generates BASIC Stamp code (and others) from expresions using standard math notation.
    e.g.
    x = sqrt(x*x + y*y),
    angle2 = cos(angle + pi/2)
    etc.
    Details will be available in the next few days.

    Regards,
    Cam Thompson
    Micromega Corporation
    http://www.micromegacorp.com
Sign In or Register to comment.