AVR-Chat

Dave VanHorn wrote:
> At 06:39 PM 3/30/2005, Graham Davies wrote:
> 
> 
> 
>>--- In AVR-Chat@yahoogroups.com, Dave VanHorn <dvanhorn@d...> wrote:
>>
>>
>>>... if there's no operational
>>>difference, why would the customer
>>>differentiate?
>>
>>I'm kind of surprised to have got to this point in the discussion. I
>>thought my point would have been taken and now I think I'm just going
>>to state the obvious and nobody will remember how we got here and what
>>the hell I'm going on about.
>>
>>The reason you care about design quality is that you can trust it. A
>>poor quality design may work most of the time for some people and all
>>of the time for most people.
> 
> 
> I know that. Remember, I do this sort of thing for a living too.
> But, when the customer is looking at the web page, deciding which to buy, 
> you need to give him something to hold on to, to make the right decision.
> 
> I have gone to the point of adding lead weights in some products to make 
> their perceived value higher.
> 
> The issues you are talking about are all things you discover (or not) after 
> the purchase decision has been made.
> 
> 
>>But, when you get into a tight spot you
>>want to be able to trust your tools. You want tools that are designed
>>to work in every reasonable situation. You want a JTAG interface that
>>keeps on working if there is a lot of noise on the supply and does not
>>inject noise into a circuit that is sensitive to supply noise. You want
>>the interface to produce absolutely no EMI and to be insensitive to EMI
>>when the test system generates it. The Atmel JTAG ICE probably meets
>>these criteria. For $300 it should. If you don't want to pay $300, you
>>might still prefer a good design to a shoddy one.
> 
> 
> For one, I wasn't aware of these differences before I bought my olimex 
> units, or all other things being equal, I would not have gone that way.
> Put the data on your web site!  Show both boards, and explain the differences.
> Have someone test the operating voltages and noise immunity. (it's better 
> if it comes from a third party)
> I'd be happy to review your unit, if you like, or I'm sure there are others 
> who are able and willing.

I can offer to do independent testing, as I have just tested a few 
programmers for other chips (damn Pic's)

Lol

Regards,

Kat.