All is now working, thats for helping out a greenie,... been about 10 years
since i touch this kind of stuff...


"Dirk D&#4294967295;rr" <dirk.doerr@3soft.de> wrote in message
news:bv02o0$mmueq$1@ID-201648.news.uni-berlin.de...
> Hi!
>
> I think the programmer only works when your target board is powered!
>
> -- 
>     Dirk
>
>

Hi!

I think the programmer only works when your target board is powered!

-- 
    Dirk

--|-- wrote:
> 
> http://www.lancos.com/e2p/avrisp-stk200.gif
> 
> ok i built the above programmer using an at90s2312 also completed crystal
> circut......
> 
> anyhow long story short, i can read security descriptors, but anything else
> failes the led also never lights up, the par port is giving me 4.6 volts and
> 96ma but the power drastically drops when i run an action, vcc to the atmel
> only carries 2.1 volts or so ...
> 
> Any ideas?
>  been over the circut 30 times it matches......

where are you getting your +5V from?

Don...


-- 
Don McKenzie
E-Mail Contact Page:      http://www.e-dotcom.com/ecp.php?un=Dontronics

USB to RS232 Converter that works http://www.dontronics.com/usb_232.html
Don's Free Guide To Spam Reduction  http://www.e-dotcom.com/spam_exp.php

--|-- wrote:

> http://www.lancos.com/e2p/avrisp-stk200.gif
> 
> ok i built the above programmer using an at90s2312 also completed crystal
> circut......
> 
> anyhow long story short, i can read security descriptors, but anything else
> failes the led also never lights up, the par port is giving me 4.6 volts and
> 96ma but the power drastically drops when i run an action, vcc to the atmel
> only carries 2.1 volts or so ...
> 
> Any ideas?
>  been over the circut 30 times it matches......


Have you got the Vdd supply from the target board on pin 2 of the ST1 
connector? It sounds as if you are trying to power the whole thing from 
the parallel port.

Leon
-- 
Leon Heller, G1HSM
Email: aqzf13@dsl.pipex.com
My low-cost Philips LPC210x ARM development system:
http://www.geocities.com/leon_heller/lpc2104.html

Ok so i have 2.5 volts on vcc goint to my atmel, if i hit write/read it
drops to 1mv or so, possibly there's not enough power coming out of the
parallel port?

"--|--" <chrispol@videotron.ca> wrote in message
news:K3FQb.116035$XO3.2083923@wagner.videotron.net...
> http://www.lancos.com/e2p/avrisp-stk200.gif
>
> ok i built the above programmer using an at90s2312 also completed crystal
> circut......
>
> anyhow long story short, i can read security descriptors, but anything
else
> failes the led also never lights up, the par port is giving me 4.6 volts
and
> 96ma but the power drastically drops when i run an action, vcc to the
atmel
> only carries 2.1 volts or so ...
>
> Any ideas?
>  been over the circut 30 times it matches......
>
>
>
>

http://www.lancos.com/e2p/avrisp-stk200.gif

ok i built the above programmer using an at90s2312 also completed crystal
circut......

anyhow long story short, i can read security descriptors, but anything else
failes the led also never lights up, the par port is giving me 4.6 volts and
96ma but the power drastically drops when i run an action, vcc to the atmel
only carries 2.1 volts or so ...

Any ideas?
 been over the circut 30 times it matches......