Re: [Flashforth-devel] PIC18F67K22

[<fla...@li...>]

Response most appreciated .

On second question - I was wondering if there was an overview of how the
flashforth or any forth system is" put together . I still
have my Brodie Book from way back when"  but was looking for an explanation
of the program flow - :

eg On startup the assembler code sets up the pointers to the stack in
routine ....... and initializes the serial port in routine .....  .
Thereafter
the system stays in a loop waiting for character from the serial port and
on seeing a space call routine .......
that looks up the word in the dictionary in routine ......

and so on .

Many years Hendrix wrote a manual on how the small C compiler worked and I
was looking for something similar



On Mon, Jan 5, 2015 at 1:24 PM, <fla...@li...>
wrote:

> This CPU will require a small modification in the flash write routine
> of FlashForth to support 128 byte flash sectors.
> Sofar only 64-byte flash sectors have been needed by the PIC devices.
>
> I will try to fix this in the near future.
>
> Your second question I do not really understand.
> Are you asking about debugging or about the FF code generator or
> how to write assembly in FF or something else ?
>
> BR Mike
>
> On 05.01.2015 11:11, fla...@li... wrote:
> > 1. Has anyone got flashforth to work on this processor which has
> > 128KB
> > flash . Many years ago ( 35 ) we always used Forth to debug new
> > hardware designs on Z80's
> > and have a new design using the PIC . Words like ON , OFF and TOGGLE
> > where you put pin number and in the case of toggle pulse width and
> > duty cycle , are great for exercising any I/O pin that you can then
> > trace with an oscilloscope.
> >
> > 2. Where could I find guidance on how the code operates at a higher
> > level as single stepping is proving challenging.
> >
> > Regards
> > Hedley
>
>
>
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