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Hi friend:
I face with a problem when I want to use Reset pins as IO in ATMEGA8. For=
this means I=92ve marked RSTDISBL fuse bit in programming stage in Codevis=
ion program with ISP STK 200/300 , but after programming process my progra=
mmed IC didn=92t work at all.
Best Regards
Ali

=20=20=20=20=20=20=20
---------------------------------
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(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )

What did you set the other code bits to? The very first mistake I made in=
=20
programming an AVR was to set the oscillator bits incorrectly. Actually,=20
I didn't even bother looking and the programmer set them to the wrong=20
bits.

I only made that mistake once.
:-)

Zack

On Fri, 18 Jan 2008, rahmatoolah abedini wrote:

> Hi friend:
> I face with a problem when I want to use Reset pins as IO in ATMEGA8. Fo=
r this means I=92ve marked RSTDISBL fuse bit in programming stage in Codevi=
sion program with ISP STK 200/300 , but after programming process my progr=
ammed IC didn=92t work at all.
> Best Regards
> Ali
>

[Non-text portions of this message have been removed]

=20

=20


(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )

Dear freind

stk 200/300 programmers use Serial Programming method in which RESET pin is=
needed for programming proccess. so I think due to u disabled that pin, th=
e programming procedure failed at all. Even if the programmer could did the=
right programming, your IC was not be able to be programmed again by that =
kind of programmer. I sugget to use a parallel programmer for your task. yo=
u may find more topics about parallel programmers on the web.
Regards
=20
Navid Zeraatkar

----- Original Message ----
From: rahmatoolah abedini
To: a...@yahoogroups.com
Sent: Saturday, January 19, 2008 11:04:58 AM
Subject: [AVR club] Use Reset pin as IO

Hi friend:
I face with a problem when I want to use Reset pins as IO in ATMEGA8. For t=
his means I=A2ve marked RSTDISBL fuse bit in programming stage in Codevisio=
n program with ISP STK 200/300 , but after programming process my programme=
d IC didn=A2t work at all.
Best Regards
Ali

------------ --------- --------- ---
Never miss a thing. Make Yahoo your homepage.

[Non-text portions of this message have been removed]

_____________________________________________________________________=
_______________
Be a better friend, newshound, and=20
know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=
=3DAhu06i62sR8HDtDypao8Wcj9tAcJ=20
[Non-text portions of this message have been removed]

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(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )

If you are using serial programming, then you can't use reset pin as IO.
If you disabled reset pin you can't further program by serial.

now you need to enable reset pin by parallel programming.

--- In a...@yahoogroups.com, Zack Widup wrote:
> What did you set the other code bits to? The very first mistake I
made in
> programming an AVR was to set the oscillator bits incorrectly.
Actually,
> I didn't even bother looking and the programmer set them to the wrong
> bits.
>
> I only made that mistake once.
> :-)
>
> Zack
>
> On Fri, 18 Jan 2008, rahmatoolah abedini wrote:
>
> > Hi friend:
> > I face with a problem when I want to use Reset pins as IO in
ATMEGA8. For this means I've marked RSTDISBL fuse bit in programming
stage in Codevision program with ISP STK 200/300 , but after
programming process my programmed IC didn't work at all.
> > Best Regards
> > Ali
> > [Non-text portions of this message have been removed]
>



(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )

Parallel programmers are rather expensive in comparison with home=20
made STK 200/300, and one may choose to buy another uC instead!

Now I have 3 AVR uC on my desk and their fusebits are set to run with=20
external clock. I know an external clock source can bring them back=20
to life using the same STK 200/300 programmer, but the problem is=20
that I don't know how to do this. What is the right level of peack to=20
peack voltage and the waveform? can a 555 make such a clock source?=20
How can I find the circuit diagram on the internet?
--- In a...@yahoogroups.com, Navid Zeraatkar =20
wrote:
>
> Dear freind
>=20
> stk 200/300 programmers use Serial Programming method in which=20
RESET pin is needed for programming proccess. so I think due to u=20
disabled that pin, the programming procedure failed at all. Even if=20
the programmer could did the right programming, your IC was not be=20
able to be programmed again by that kind of programmer. I sugget to=20
use a parallel programmer for your task. you may find more topics=20
about parallel programmers on the web.
> Regards
>=20=20
> Navid Zeraatkar
>=20
>=20
>=20
> ----- Original Message ----
> From: rahmatoolah abedini
> To: a...@yahoogroups.com
> Sent: Saturday, January 19, 2008 11:04:58 AM
> Subject: [AVR club] Use Reset pin as IO
>=20
> Hi friend:
> I face with a problem when I want to use Reset pins as IO in=20
ATMEGA8. For this means I=A2ve marked RSTDISBL fuse bit in programming=20
stage in Codevision program with ISP STK 200/300 , but after=20
programming process my programmed IC didn=A2t work at all.
> Best Regards
> Ali
>=20
> ------------ --------- --------- ---
> Never miss a thing. Make Yahoo your homepage.
>=20
> [Non-text portions of this message have been removed]
>=20
>=20
>=20
>=20
>=20
>=20=20=20=20=20=20=20
______________________________________________________________________
______________
> Be a better friend, newshound, and=20
> know-it-all with Yahoo! Mobile. Try it now.=20=20
http://mobile.yahoo.com/;_ylt=3DAhu06i62sR8HDtDypao8Wcj9tAcJ=20
>=20
>=20
> [Non-text portions of this message have been removed]
>

=20

=20


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