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Hard to solder packages and homebrew projects

Discussion in 'Electronic Basics' started by [email protected], Mar 10, 2006.

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  1. Guest

    Hi, I'm working on my CSci major at the moment and want to get some
    hands on expirence programming MCUs/embedded systems. I'm on an ultra
    low budget. I've decided to try out the
    TUSB3210: .
    According to the datasheet, it is programable via USB; I don't need to
    buy/build a complicated programmer, right?

    This chip only comes in LQFP64. What is the cheapest/easiest way that I
    can adapt this so that I can play around with it on a breadboard? I'm
    considering springing for a PCB with LQFP64 solder mounts on top and a
    DIP arrangement on the bottom. My brother said I could bake the chip on
    using an oven; is this even possible?

    Thank you,
  2. Jim Brain

    Jim Brain Guest

    I think you should reconsider this approach. You'll need a PCB to map
    to DIP sockets, and then a USB connector, and probably a 3v power
    source, and few people will be able to help with newbie questions.
    DIgikey has them for $5.00. For the same amount of money, you can grab
    some perfboard, an ATMEGA48 (2.69), a parallel port DB25 (.70), and a
    74LS244 (.50) and wire up a board that is the CPU and a programmer.
    Much cheaper, the programmer is not complicated, and you can tap into
    this group and for answers.

    If not the AVR, PIC folks in here probably have a suitable PIC setup as
    well that costs about the same.

  3. aaron_ds

    aaron_ds Guest

    Hi Jim,

    I have a USB connector already, and I've made regulated power supplies
    in the past for non-IC related projects. I suppose if the PCB to map
    the LQFP64 to DIP is going to be more expensive and harder than using
    the ATMEGA48, I ought to go with the ATMEGA48. The usb interface looked
    so easy to use too; too bad the TUSB3210 doesn't come in DIP.

    Thank you,
  4. Deefoo

    Deefoo Guest


    Jim Brain, Brain Innovations
    Why do I get an error 403: Forbidden! when trying to acces your web site?

  5. Jim Brain

    Jim Brain Guest

    Those boards are not cheap, and they're usually one-time use.

    It might cost about the same, but I still think a new intro to embedded
    would be better off with a PIC or AVR. I'm still sorting out the PIC
    stuff (just getting my feet wet), but I came up from 0% AVR knowledge
    (my earlier experience was on HC11s, in a dedicated programmer from
    Motorola) in 1 day. parallel port dongle was trivial to build,
    programming just worked(tm), and WinAVR (with the cute Makefile maker)
    made compilation a breeze.

  6. Jim Brain

    Jim Brain Guest

    Hmm, I guess I need to fix that.

    Try for pics of the stuff.

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