Maarten Hofman wrote:

>>I can not get the device to program. I built and verify Myke's ElCheapo
>>(Home Built) version from the Web site. I have verified all the
>>"build/tests" with Windows version software and the yellow light
>>illuminates and I have performed a continuity check of every connection
>>- including the parallel port.
>>    
>>
>
> So you verified that all voltages were within the recommended ranges as 
>specified by the El Cheapo software?
>  
>
Yes.  I also determined that I could toggle pins on the parallel port.

>When I hit program; it fails
>  
>
>>"Program fail at address 0
>>0x0280E was written; but 0x0E was read back"
>>    
>>
>
> This is a rather generic message, though it is interesting that it reads 
>0x0E (in my case it is always 0x3FFF in case of a failure).
> Things you can do still:
>1) Check whether the adapter delivers enough power. When connected to the 
>circuit, measure the voltage coming from the adapter (at the 2.1 or
>2.5mmjack). This should be at least 16 volts. If it is less, you need
>a better
>adapter.
>  
>
I checked.  My wall-wart is 15v at 250ma.  I checked and have 13.1v at 
the VPP (~rst pin)

>2) Use the IC-prog software from http://www.ic-prog.com . Even though the 
>website doesn't show it anywhere, this program has the ability to program 
>the El Cheapo, and generally does a better job of it too.
> And for those that were planning to ask, yes I do own an El Cheapo.
> Greetings,
>Maarten Hofman.
>  
>

Thank you.  I will give it a try


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