[hpsdr] EEPROM Programming

[Philip Covington]

On 2/23/07, Philip Covington <p.covington at gmail.com> wrote:
> On 2/23/07, Ray Anderson <ray.anderson at xilinx.com> wrote:
> > ***** High Performance Software Defined Radio Discussion List *****
> >
> >
> > It looks like the SOIC adapters shown on this web page are the sort of
> > thing you need to fixture a programmer for the 24LC128 parts:
> >
> > http://soic-adapter.com/Site/SOIC-programming-adapters,,,,,,,,,,,,,93S66
> > .htm
> >
> > Kind of pricey though, $50 for a single socket. (these are industrial
> > strength). There must be light-duty versions good for 500 or so
> > insertions out there somewhere at a better price.
> >
> > Sounds like the pre-programmed from the vendor option is the way to go
> > if you need 500 parts loaded.
> >
> > -Ray    WB6TPU
> >
>
> All that you really need is the SOIC8 pads and a way to hold the IC in
> contact with the pads to do the programming.
>
> I use one of these Surf Board prototyping boards (~$5):
>
> <http://rocky.digikey.com/WebLib/Capital%20Advanced/Web%20Photos/9082.jpg>
>
> and a small toggle clamp (~$8) to hold it down:
>
> <http://www1.mscdirect.com/CGI/NNSRIT?PMPXNO=5347684&PMT4NO=18662771>
>
> I adjust the toggle clamp to just barely put any pressure on the top
> of the IC - just enough to hold it in place on the SOIC8 pads on the
> Surf Board above.  A couple of super-glued on plastic alignment pieces
> makes for quick alignment of the IC.
>
> Wire it up to OZY's I2C bus and use the 5 volts from the USB +5V
> powered setup of OZY and you are good to go.
>
> Phil N8VB
>

P.S. The picture of the toggle clamp was for illustration purposes
only.  I use a very small toggle clamp.  The one in the picture is
really too large.  If need be, when I get home tonight I can find the
part number of the dinky toggle clamp I actually use for things like
this - but at least it gives you the overall idea.

Phil N8VB

 1172262867.0