I use pic start plus to program both chips. for
16f628, configuration bits are as follow:
Oscillator: HS
Watchdog timer: Off
Power up timer: On
Code Protect : Off
Brown out detect: enable
Master clear : enable
Low voltage program : enable
data EE protect : disable

for 16f84:
Oscillator:HS
Watchdog timer: off
Power up timer: On
code protect: Off
Is it because I use HS, 16f628 gives me the problem?
thanks...

Rgds,
Thet Naing

--- Brent Brown <brent.brown@CLEAR.NET.NZ> wrote:
> > I don't think it is because of circuit as I used
> > exactly same for 16f84 and 16f628. And the latter
> > shows give the problem. The following is the
> source
> > code. Thanks...
>
> There are differences in the config fuses between
> the F84 and the
> F628, not shown in your sample code. The most likely
> cause of
> your problem would probably the oscillator mode, my
> apologies if
> you've already had a suggestion like this.
>
> Brent Brown
> Electronic Design Solutions
> 16 English Street
> Hamilton, New Zealand
> Ph/fax: +64 7 849 0069
> Mobile/text: 025 334 069
> eMail:  brent.brown@clear.net.nz
>
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