Dan Michaels wrote:
> Hi Don,
> 1. It looks like my existing PIC Monitor/40 chip (based on the
> 16C74) could directly plug into your DT106 SimmStik, which would
> then be plugged into the target system, and used to test the target
> h.w. prior to people having written/finished their own firmware
> (which would eventually go on the DT106). This is a direct match
> I think.

Yep, sure looks like it.

> 2. Jim and I were discussing a programmer/development system that
> also has built-in multi-functional test/stimulation capability,
> so you can more or less do it all with one place. Jim would also
> like it to have debugger/monitor/ICD capability,

snip---

> the jobs (I may be wrong here), while I saw 2 chips on the board,
> one to be programmed/debugged, and a separate test/stimulator
> chip, similar to my current PIC Monitor chip. This 2nd chip
> would be used to test both external h.w.

I am just trying to grasp the two chips concept and how it may work.
Problem being all I/O is on a common bus. SimmStick caters for multiple
micros, but the overall architecture must be choreographed to work
correctly.
This applies to any two micros of course in any design.

> 3. When Rob Severson brought SimmStiks into this, I think he meant
> also including a SimmStik programming socket on the unit of item 2),
> but I thought this might be poaching on your turf (????). Plus, it
> might be getting off track from the original concept.

No, not poaching at all. We welcome all third party designs and help
were possible to get budding designers information about the bus specs,
and the board dimensions.

This can be found at:
http://www.dontronics.com/ssinfo.html#dg
and third party SimmStick compatible, or similar 30 pin designs at:
http://www.dontronics.com/ssinfo.html#other

(BTW SimmStick is spelt SimmStick.) :-)

Don McKenzie    mailto:don@dontronics.com      http://www.dontronics.com

World's Largest Range of Atmel/AVR and  PICmicro Hardware and  Software.
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html