Brand new BS2 doesn''t work
Archiver
Posts: 46,084
The defect was a real thin trail of solder in the air between pins 2
and 3, and almost to pin 1. It shorted out RX with ATN.
--- In basicstamps@egroups.com, "Mark Hillier" <Mark@H...> wrote:
>
>
> > I had the same problem! When I swapped out the Stamp2 with
another
> > one it did prove the Stamp defective. I almost sent it back when
I
> > noticed solder spanning two pins (a manufacturing defect). Look
real close
> > at the pins for a possible solution. Sunflower.
>
> Careful -if you're referring to the solder jumper on pins 3 & 4 on
the
> PIC of a BS2, this is not a manufacturing defect. Pins 3 & 4 are
> both Vdd on the SOIC version of this chip and are intentionally
> soldered together.
>
>
> Mark Hillier, VE6HVW
> President, HVW Technologies Inc.
> Canadian Distributors of Parallax Products and other Neat Stuff
> Tel: +403-730-8603 Fax: +403-730-8903
> http://www.hvwtech.com
and 3, and almost to pin 1. It shorted out RX with ATN.
--- In basicstamps@egroups.com, "Mark Hillier" <Mark@H...> wrote:
>
>
> > I had the same problem! When I swapped out the Stamp2 with
another
> > one it did prove the Stamp defective. I almost sent it back when
I
> > noticed solder spanning two pins (a manufacturing defect). Look
real close
> > at the pins for a possible solution. Sunflower.
>
> Careful -if you're referring to the solder jumper on pins 3 & 4 on
the
> PIC of a BS2, this is not a manufacturing defect. Pins 3 & 4 are
> both Vdd on the SOIC version of this chip and are intentionally
> soldered together.
>
>
> Mark Hillier, VE6HVW
> President, HVW Technologies Inc.
> Canadian Distributors of Parallax Products and other Neat Stuff
> Tel: +403-730-8603 Fax: +403-730-8903
> http://www.hvwtech.com