Rafael Vidal Aroca wrote:
>     Has anyone ever used picloader?

I haven't.

>     I programmed a 16f877 with it and made a very simple program, but
> everything i try to send to the pic after issuing an U and waiting for
> the ready signal, returns: invalid record

What do you mean by "everything" you send?  Are you receiving the
"ready" prompt?  If so, I would imagine that the PIC is waiting for you
to start an ASCII file upload of something resembling a HEX file.  If
you are not getting the "ready" prompt, perhaps you have a CR/LF issue.
The FAQ says that all lines need to be terminated with a CR, check your
minicom settings you are probably sending LF characters and the
boot-loader code is choking on them.

>     All commands work ok, so serial and other stuff are perfect. The
> problem is just in uploading the code into the flash.

Just glancing at the page, it looks like you need to have your code
ORG'd to 0x03 instead of the usual 0x00.  Could that be it?

>     By the way: I'm not using Hyperterminal as told in rfarmer page.
> I'm using minicom, a Linux terminal emulator with all needed
> configuration.
>
>     Ref: http://www.dontronics.com/rfarmer.html

Hope this helps

michael brown

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