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Happy New SX User — Parallax Forums

Happy New SX User

The Dead BugThe Dead Bug Posts: 73
edited 2005-01-12 17:40 in General Discussion
Hey! Just a note to say that I am a long-time STAMP user, and used PIC chips before that. I just finished my first project with an SX28 using SX/B and man, am I thrilled! SX/B takes most of the pain out of the old way of doing it (assy.). Once I figured out the memory paging issues, it was a snap. Haven't worked with interrupts yet, so I'm looking forward to that next.
Thanks!

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Name: Bruce Clemens

Work:· Clemensb@otc.edu
Bolg: http://theDeadBug.journalspace.com

Comments

  • Paul BakerPaul Baker Posts: 6,351
    edited 2005-01-10 20:36
    Welcome, and may I say, you have a clever avatar.

    Paul
  • Paul BakerPaul Baker Posts: 6,351
    edited 2005-01-11 05:45
    I just read your bolg as you put it, I cracked up when I read your post on radio shack. Its a sad but true commentary (I lamented in another post about childhood days of thumbing through the components section of the RS catalog. I still do it, but now its with the digikey catalog thats 10x bigger tongue.gif ). Your first post hit the nail on the head for me, I was drawn to electronics from a very early age (taking apart and reassembling anything I could get my hands on. I have a funny story about my dad coming home one day to find the stereo receiver lid off, boards, chips and screws strewn everywhere. Man the look on his face was priceless. The thing still worked after I reassembled which I think shocked him even more). I guess the true draw of it is; I feel like the god of my own microcosm.

    Paul, needs to goto bed now cause perfectly spelled words look mighty funny right now.

    Post Edited (Paul Baker) : 1/11/2005 5:51:37 AM GMT
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2005-01-11 16:20
    Paul's reply prompted me to check this BLOG...And that made me think to ask, Bruce, why are you using a Maxim chip to drive the LEDs when Jon Williams has shown us all how to do it right from the SX?· Just curious, since the Maxim chips like that aren't cheap!



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    Chris Savage

    Knight Designs
    324 West Main Street
    P.O. Box 97
    Montour Falls, NY 14865
    (607) 535-6777

    Business Page:·· http://www.knightdesigns.com
    Personal Page:··· http://www.lightlink.com/dream/chris
    Designs Page:··· http://www.lightlink.com/dream/designs
    ·
  • The Dead BugThe Dead Bug Posts: 73
    edited 2005-01-12 02:10
    Chris, Actually the Maxim chip was free. I got a pair of 'em as a sample from the company. As I continue to work with the SX and learn, I'm sure that I'll become more familiar with what has already been done so I won't have to re-invent the wheel with other things. I did use a lot of the SX's memory for this project, however, and I felt that the overhead of multiplexing a display on top of scorekeeping would be too much. However a second SX to handle the display would certainly be do-able.
    Bruce

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Name: Bruce Clemens

    Work:· Clemensb@otc.edu
    Bolg: http://theDeadBug.journalspace.com
  • The Dead BugThe Dead Bug Posts: 73
    edited 2005-01-12 02:16
    Paul,
    Thanks for checking the blog. It is a labor of love, and I intend to use it to supplement the digital and microprocessor classes I teach at OTC. Please feel free to post to it. I hope to get input and responses from all over.
    Best,
    Bruce

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Name: Bruce Clemens

    Work:· Clemensb@otc.edu
    Bolg: http://theDeadBug.journalspace.com
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2005-01-12 17:40
    Bruce, as a side-note, I really don't think you'll need 2 SX's for your project...One would be sufficient.· I believe Jon's Multiplexing code runs in the ISR so that the main code doesn't have to handle the updating of the displays.· I haven't used it yet, but that's what I remember off the top of my head.· And it makes sense too, you could update variables from your main code as need be, and the ISR can handle updating the display using the information from the same variables.



    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Chris Savage

    Knight Designs
    324 West Main Street
    P.O. Box 97
    Montour Falls, NY 14865
    (607) 535-6777

    Business Page:·· http://www.knightdesigns.com
    Personal Page:··· http://www.lightlink.com/dream/chris
    Designs Page:··· http://www.lightlink.com/dream/designs
    ·
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