Re: [Usbpicprog-technical] config word programming

[Gábor H. <gab...@gm...>]

Hi,

I will check the specs, but I am afraid this is something different,
because I can not even read the config words, including the device ID,
which I assume should be readable even with code protection enabled.

Thanks,
Gabor

On Wed, Oct 17, 2012 at 8:07 AM, Frans Schreuder
<fra...@gm...>wrote:

> Hi,
>
> You probagbly haven't bricked the pic but programmed the code proteection
> bits by accident. With these bits enabled it is also more difficult to eras
> the pic, check the programming specification for the procedure.
>
> Regards,
>
> Frans
>
> Op 16 okt. 2012 23:04 schreef "Gábor Hornyák" <gab...@gm...> het
> volgende:
>
> >
> > Hi Everyone,
> >
> > My question is not strictly related to usbpicprog, but I am hoping that
> someone here has faced similar issue.
> > As a 'side' project of an other project, I thought I create a simple
> programmer to PIC18F46K22 (I have a demo board with PIC18F45K22 equipped
> with bootloader, which I am using for programming). Everything went fine -
> I was able to read/write program memory and read config words - until I
> reached the point where config words had to be written. After I created it
> and tested with a PIC, it seems that I bricked the mcu, because from that
> point, I can not do anything with the PIC (always read zeroes for all
> addresses).
> > I don't know what could have went wrong, since config word programming
> differs only in a few things from program memory programming (which works
> fine, and the fact is that I actually seem to have bricked two PICs
> already). My concrete question is: could this problem have been caused by
> trying to write config BYTES separately (not as words)? Has anyone faced
> similar problem?
> >
> > Thanks and Regards,
> > Gabor
> >
> >
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