Building a microcontroller, bread board style

I'm trying to build a microcontroller from an sx28 chip from scenic.. can anyone lead me in the

right direction on BUILDING that. I don't want to

purchase a microcontroller I want to build one on

a bread board.. I was wondering if anyone was doing this also??... pictures of the whole thing

would be nice....







--grenadeboy


Comments

  • : I'm trying to build a microcontroller from an sx28 chip from scenic.. can anyone lead me in the

    : right direction on BUILDING that. I don't want to

    : purchase a microcontroller I want to build one on

    : a bread board.. I was wondering if anyone was doing this also??... pictures of the whole thing

    : would be nice....

    :

    :

    :

    : --grenadeboy

    :

    Hi gboy -

    You have chosen an ambitious project. Even making a simple controller from scratch can be a long-term project. From what I see on Scenix's site, the SX-28 series high performance controllers would require a careful pcb design due to their high clock / bus speeds. I am afraid you will have trouble trying to get it running using breadboard techniques.



    I would suggest that you try a more modest design as a first project. A simple m'controller chip such as a Motorola HC68HC series:



    http://ebus.mot-sps.com/ProdCat/sg/0,1251,M98635,00.html



    because:

    1) the relatively slow clock and bus speeds make breadboard design practical.

    2) they are cheap - you won't blow your wad on the hardware and have nothing left for software developement -

    3) much cheap/free software is available on the 'net

    4) cross assemblers and cross compilers are easily available (also cheap/free) so you can write your own software on your PC.



    Just some ideas for ya.



    Enjoy!

    Al






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