flashforth-devel — FlashForth users and developers

[Flashforth-devel] some Forth-Wishes

[Thomas B. <bus...@gm...>]

Hallo,

I have some wishes for flashforth (I know christmas is coming late) - maybe
you can help me out:

Definitions taken from gforth:
w! *w c-addr - * gforth "w-store"
Store the bottom 16 bits of *w* at *c_addr*.

hex. *u - *gforth "hex."Display *u* as an unsigned hex number,
prefixed with a "$" and followed by a space.

Thank you

and a happy christm... äh weekend

Thomas

Re: [Flashforth-devel] A Oszillator-Question

[Thomas B. <bus...@gm...>]

Dear Herman Attila,

thank you, I found it in "p18f2525-2620-4525-4620.cfg"

Greets to Hungaria (nice country)
Thomas


2014-03-13 12:08 GMT+01:00 Herman Attila <exp...@vn...>:

> Hi Thomas
>
> Write  config OSC = ECIO6 into config file, if you want use external
> oscillator instead of simple quartz.
> In this case you can use the pin10 (RA6) as port bit.
>
> BR
> Attila
>
> ----- Eredeti üzenet -----
> Feladó: Thomas Buschhardt <bus...@gm...>
> Dátum: Csütörtők, Március 13, 2014 9:23
> Tárgy: [Flashforth-devel] A Oszillator-Question
> Címzett: Fla...@li...
>
>
> > s" Hallo FF"
> >
> > I want use FF (5.0) with a PIC18F2620 in UART-Mode and a 4 MHz
> > Quarzoszillator (link to
> > oszi<>
> > ).
> > In the p18f-main.cfg I change the frequency.
> >
> > Is something other to change in the config-files, because the
> > oszillator is
> > connected with only one pin (nr. 9) ?
> >
> > Thank You
> > Thomas
> >
> ------------------------------------------------------------------------------
> > Learn Graph Databases - Download FREE O'Reilly Book
> > "Graph Databases" is the definitive new guide to graph databases and
> their
> > applications. Written by three acclaimed leaders in the field,
> > this first edition is now available. Download your free book today!
> >
> > _______________________________________________
> > Flashforth-devel mailing list
> > Fla...@li...
> >
>
>
> ------------------------------------------------------------------------------
> Learn Graph Databases - Download FREE O'Reilly Book
> "Graph Databases" is the definitive new guide to graph databases and their
> applications. Written by three acclaimed leaders in the field,
> this first edition is now available. Download your free book today!
> http://p.sf.net/sfu/13534_NeoTech
> _______________________________________________
> Flashforth-devel mailing list
> Fla...@li...
> https://lists.sourceforge.net/lists/listinfo/flashforth-devel
>



-- 
www.aloedb.org - database for aloes

Re: [Flashforth-devel] A Oszillator-Question

[Herman A. <exp...@vn...>]

Hi Thomas

Write  config OSC = ECIO6 into config file, if you want use external oscillator instead of simple quartz.
In this case you can use the pin10 (RA6) as port bit.

BR
Attila

----- Eredeti üzenet -----
Feladó: Thomas Buschhardt <bus...@gm...>
Dátum: Csütörtők, Március 13, 2014 9:23
Tárgy: [Flashforth-devel] A Oszillator-Question
Címzett: Fla...@li...


> s" Hallo FF"
> 
> I want use FF (5.0) with a PIC18F2620 in UART-Mode and a 4 MHz
> Quarzoszillator (link to
> oszi<>
> ).
> In the p18f-main.cfg I change the frequency.
> 
> Is something other to change in the config-files, because the 
> oszillator is
> connected with only one pin (nr. 9) ?
> 
> Thank You
> Thomas
> ------------------------------------------------------------------------------
> Learn Graph Databases - Download FREE O'Reilly Book
> "Graph Databases" is the definitive new guide to graph databases and their
> applications. Written by three acclaimed leaders in the field,
> this first edition is now available. Download your free book today!
> 
> _______________________________________________
> Flashforth-devel mailing list
> Fla...@li...
> 

[Flashforth-devel] A Oszillator-Question

[Thomas B. <bus...@gm...>]

s" Hallo FF"

I want use FF (5.0) with a PIC18F2620 in UART-Mode and a 4 MHz
Quarzoszillator (link to
oszi<http://www.reichelt.de/Oszillatoren/OSZI-4-000000/3//index.html?ACTION=3&GROUPID=3174&ARTICLE=13706&SHOW=1&OFFSET=500&>
).
In the p18f-main.cfg I change the frequency.

Is something other to change in the config-files, because the oszillator is
connected with only one pin (nr. 9) ?

Thank You
Thomas

Re: [Flashforth-devel] compiling for pic 18f25k22:: question

[Mikael N. <mik...@pp...>]

<html>
<body>
<div style="font-size:10pt;"><p style="margin-top:0;margin-bottom:0;">It is in ff 5.0 that you can find in the sourceforge code and git section</p><p style="margin-top:0;margin-bottom:0;">&nbsp;</p><div><signature_tag><p style="margin-top:0;margin-bottom:0;">Sent from my LG Mobile</p></signature_tag></div><p id="last_enter" style="margin-top:0;margin-bottom:0;">&nbsp;</p><p style="margin-top:0;margin-bottom:0;">&nbsp;</p><p style="margin-top:0;margin-bottom:0;">------ Original message------</p> <p style="margin-top:0;margin-bottom:0;"><b>From: </b><rfr...@gm...></p><p style="margin-top:0;margin-bottom:0;"><b>Date:&nbsp;</b>Wed, 12/03/2014 22:49</p><p style="margin-top:0;margin-bottom:0;"><b>To:&nbsp;</b>fla...@li...;</p><p style="margin-top:0;margin-bottom:0;"><b>Subject:</b>Re: [Flashforth-devel] compiling for pic 18f25k22:: question</p><p style="margin-top:0;margin-bottom:0;">&nbsp;</p><div style="font-family: Verdana;font-size: 12.0px;"><div>This file is not present (yet).<br/> &nbsp;</div>

<div class="signature">Mit freundlichem Gruss<br/> <br/>
R.Freitag<br/> </div>

</div>


</div></body>
</html>

Re: [Flashforth-devel] compiling for pic 18f25k22:: question

[<rfr...@gm...>]

<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>This file is not present (yet).<br/>
&nbsp;</div>

<div class="signature">Mit freundlichem Gruss<br/>
<br/>
R.Freitag<br/>
<br/>
[x ] K&ouml;ln<br/>
[ ] Stuttgart<br/>
[ ] Vilsbiburg<br/>
[ ] Finkenwerder<br/>
[ ] Berlin<br/>
[ ] &Uuml;berlingen<br/>
[ ] Ingolstadt<br/>
[ ] Frankfurt<br/>
[] Radolfzell</div>

<div>&nbsp;
<div>&nbsp;
<div name="quote" style="margin:10px 5px 5px 10px; padding: 10px 0 10px 10px; border-left:2px solid #C3D9E5; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">
<div style="margin:0 0 10px 0;"><b>Gesendet:</b>&nbsp;Mittwoch, 12. M&auml;rz 2014 um 21:22 Uhr<br/>
<b>Von:</b>&nbsp;&quot;Mikael Nordman&quot; &lt;mik...@pp...&gt;<br/>
<b>An:</b>&nbsp;fla...@li...<br/>
<b>Betreff:</b>&nbsp;Re: [Flashforth-devel] compiling for pic 18f25k22:: question</div>

<div name="quoted-content">
<div style="font-size: 10.0pt;">
<div style="font-size: 10.0pt;">
<p style="margin-top: 0;margin-bottom: 0;">P18f2x4xk22.cfg is the device specific file.</p>

<p style="margin-top: 0;margin-bottom: 0;">You can adapt it according to the used oscillator and other device configuration register options.</p>

<p style="margin-top: 0;margin-bottom: 0;">&nbsp;</p>

<p style="margin-top: 0;margin-bottom: 0;">Br Mikael</p>

<p style="margin-top: 0;margin-bottom: 0;">&nbsp;</p>

<div>
<p style="margin-top: 0;margin-bottom: 0;">Sent from my LG Mobile</p>
</div>

<p style="margin-top: 0;margin-bottom: 0;">&nbsp;</p>
</div>
</div>
------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O&#39;Reilly Book &quot;Graph Databases&quot; is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! <a href="http://p.sf.net/sfu/13534_NeoTech_______________________________________________" target="_blank">http://p.sf.net/sfu/13534_NeoTech_______________________________________________</a> Flashforth-devel mailing list Fla...@li... <a href="https://lists.sourceforge.net/lists/listinfo/flashforth-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/flashforth-devel</a></div>
</div>
</div>
</div></div></body></html>

Re: [Flashforth-devel] compiling for pic 18f25k22:: question

[Mikael N. <mik...@pp...>]

<html>
<body>
<div style="font-size:10pt;">
<div style="font-size:10pt;"><p style="margin-top:0;margin-bottom:0;">P18f2x4xk22.cfg is the device specific file.</p><p style="margin-top:0;margin-bottom:0;">You can adapt it according to the used oscillator and other device configuration register options.</p><p style="margin-top:0;margin-bottom:0;">&nbsp;</p><p style="margin-top:0;margin-bottom:0;">Br Mikael</p><p style="margin-top:0;margin-bottom:0;">&nbsp;</p><div><signature_tag><p style="margin-top:0;margin-bottom:0;">Sent from my LG Mobile</p></signature_tag></div><p style="margin-top:0;margin-bottom:0;">&nbsp;</p> </div>
</div></body>
</html>

[Flashforth-devel] compiling for pic 18f25k22:: question

[<rfr...@gm...>]

<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>I use a pic 18f25k22.</div>

<div>I changed in 18f-main.cfg :</div>

<div>&nbsp;</div>

<div>uncommented the define config reset 0x0000</div>

<div>(I do not use a boot loader)</div>

<div>&nbsp;</div>

<div>I shall use the FF_0000.lkr file</div>

<div>&nbsp;</div>

<div>The config file says thet changes are needed in the device specific file.</div>

<div>I did not found a file for the pic 18f25k22.</div>

<div>&nbsp;</div>

<div>Which file must be taken and which changes are to be made?<br/>
&nbsp;</div>

<div class="signature">Mit freundlichem Gruss<br/>
<br/>
R.Freitag<br/>
<br/>
[x ] K&ouml;ln<br/>
[ ] Stuttgart<br/>
[ ] Vilsbiburg<br/>
[ ] Finkenwerder<br/>
[ ] Berlin<br/>
[ ] &Uuml;berlingen<br/>
[ ] Ingolstadt<br/>
[ ] Frankfurt<br/>
[] Radolfzell</div></div></body></html>

Re: [Flashforth-devel] PIC 18F4550 usb wiring hookup?

[Mikael N. <mik...@pp...>]

In the PIC->PC direction FF sends upto 16 characters per transaction.
I dont know what speed that will give you.

The USB capacitor is a 330 nF unit.

BR Mike

Re: [Flashforth-devel] PIC 18F4550 usb wiring hookup?

[craig b. <dab...@ya...>]

Ye-Creaping-Gods-I-Hate-This-Yahoo-Email-Interface!!!
...and the script-kiddie bozos who program the lousy thing!

Whew...  Now that that's out of my system...

Thanks for the replies, the pdf looks helpful, I'll compare it with the FS-USB Manual schematic, and I'll check that pointer, Mike.  (Is that just a bypass cap on the Vusb pin or is something more sinister going on?  Will any old signal-diode do in there, or does it need current capability?)


The input fron the PC isn't the issue.  What I'm looking for is how to get data-rate out of the PIC that I want to use for a concentrator. Is the FF USB throtled on output like that, too?



craig 

...averaging may or may not help clarify data. 
   If Bill Gates walks into a bar, 
   the average patron becomes a millionaire... 

Re: [Flashforth-devel] PIC 18F4550 usb wiring hookup?

[<pza...@pz...>]

Craig,
Look at the manual for the Microchip DM163025 Demo board for the 4550 for a schematic of a USB port directly off the 4550.


Pete




-----Original Message-----
From: craig bair [mailto:dab...@ya...]
Sent: Sunday, March 9, 2014 10:41 AM
To: Fla...@li...
Subject: [Flashforth-devel] PIC 18F4550 usb wiring hookup?

I'm trying to see how high I can push data-rates with PIC18-s. The eusarts appear quite happy to talk to each other at 921.6Kbaud but I'm hitting a wall coming back to a host PC (Terra-Term under Win-XP for port control). The laptops with actual db-9 serial ports all seem to top out at 115.2K. The USB-RS232 adapters I've got will go 230.4K


I'ld like to wire up the USB on a 4550 I've got on my bread-board, but haven't ever done that before and don't have a schematic for a working design as a roadmap. Chip docs suggest that RC5/D+ and RC4/D- can be directly connected without buffering or glue(?!). Is this true? The USB TYPE A FEMALE Mating Face Diagram I found shows 1=+5, 2=D-, 3=D+, 4=gnd. Are these direct-connect to the chip lines or do they need to be cross-wired like a null-modem?


Any advice appreciated at this stage.


In an almost unrelated matter, does anyone know of a way to get Yahoo-Mail to redirect replies from mail-list posts back to the mail-list rather that the individual posters? Mike's getting annoyed with me and I don't always think to originate a new list-thread for every reply/followup... (things were simpler back in the day when we used uucp to distribute newsgroups (grin))


craig bair


...averaging may or may not help clarify data.
 If Bill Gates walks into a bar,
 the average patron becomes a millionaire...

Re: [Flashforth-devel] PIC 18F4550 usb wiring hookup?

[Herman A. <exp...@vn...>]

Hi Craig

The D+ D- don't need cross-wireing because they are not transmit/receive signal pair. Theese are bidirectional lines with normal and inverted polarity, similarly then the RS485. Don't forget the capacitor on the Vusb pin.

BR
Attila Herman

Re: [Flashforth-devel] PIC 18F4550 usb wiring hookup?

[Mikael N. <mik...@pp...>]

Here
http://www.waitingforfriday.com/index.php/Building_a_PIC18F_USB_device
is a pretty good page about PIC USB devices.

You wont get 921 Kbit throughput out of the USB interface because it 
transmits only 1 byte transactions in the direction PC to PIC.
And the PIC uses quite many instructions per transaction.
It is set up like this to make the implementation of KEY and RXU as 
simple as possible.
But at least you will get the 921 kbit interface speed.

BR Mike

[Flashforth-devel] PIC 18F4550 usb wiring hookup?

[craig b. <dab...@ya...>]

I'm trying to see how high I can push data-rates with PIC18-s.  The eusarts  appear quite happy to talk to each other at 921.6Kbaud but I'm hitting a wall coming back to a host PC (Terra-Term under Win-XP for port control).  The laptops with actual db-9 serial ports all seem to top out at 115.2K.  The USB-RS232 adapters I've got will go 230.4K

I'ld like to wire up the USB on a 4550 I've got on my bread-board, but haven't ever done that before and don't have a schematic for a working design as a roadmap.  Chip docs suggest that RC5/D+ and RC4/D- can be directly connected without buffering or glue(?!).  Is this true?  The USB TYPE A FEMALE Mating Face Diagram I found shows 1=+5, 2=D-, 3=D+, 4=gnd.  Are these direct-connect to the chip lines or do they need to be cross-wired like a null-modem?

Any advice appreciated at this stage.

In an almost unrelated matter, does anyone know of a way to get Yahoo-Mail to redirect replies from mail-list posts back to the mail-list rather that the individual posters?  Mike's getting annoyed with me and I don't always think to originate a new list-thread for every reply/followup...  (things were simpler back in the day when we used uucp to distribute newsgroups (grin))

craig bair

 
...averaging may or may not help clarify data. 
   If Bill Gates walks into a bar, 
   the average patron becomes a millionaire...

[Flashforth-devel] Flashforth also available now via github

[Mikael N. <mik...@pp...>]

I am now pushing all Flashforth repository changes also to github.

It could be that FF is eventually moved there completely. Time will tell.

BR Mike

Re: [Flashforth-devel] Git(?), v5.0, and long division

[Mikael N. <mik...@pp...>]

Craig,

Here is my take on calculating the spbrg value.
It takes the CPU clock from Fcy and the baudrate and baudgenerator 
prescaler (16 or 64)
is given as input.

Not difficult at all. Just normal 16-bit Forth integer scaling stuff.

$ffaf constant spbrg

spbrg c@  . 18 ok<#,ram>

: >spbrg ( double-baud brg-prescaler -- n )
   >r
   #100 um/mod nip >r
   Fcy #40 um*
   r> um/mod nip
   r> / 1-
;

38400. 16 >spbrg  . 18 ok<#,ram>

Re: [Flashforth-devel] Git(?), v5.0, and long division

[Mikael N. <mik...@pp...>]

Hi Craig,

Here is in general about git
http://git-scm.com/
http://git-scm.com/book/en/Getting-Started-About-Version-Control
http://git-scm.com/downloads

And here about git at sourceforge 
https://sourceforge.net/p/forge/documentation/Git/

Here you can find uq/mod
https://sourceforge.net/p/flashforth/code/ci/master/tree/PIC18/forth/qmath.txt

\ Divide a 64 bit unsigned number with a 32 bit unsigned number
\ The result is a 32 bit remainder and 32 bit quotient
uq/mod ( qu du -- du-rem du-quot )

https://sourceforge.net/p/flashforth/code/ci/master/tree/PIC18/forth/qmath.txt

But instead of loading uq/mod I would prefactor and scale (divide Fcy 
and the UART rates by 100) and use the 32/16 bit words.
You don't need 32 bit accuracy for the UART rates.

BR Mike


On 03/05/2014 01:53 PM, craig bair wrote:
> Doing my first serious application project in FF3.8-Pic18 and having a blast with it, but you've gotten my curiosity up...
>
> 1)  Is there a tutorial or walk-through for using Git?  From what I can seee in SourceForge, it looks like a hash of sort-of-DIFF files for multiple projects and I've got no clue where to start with it.  Things sound like v5.0 is coming along nicely and it might be nice to take a look at it.
>
>
> 2)  Is there a word for doing 32bit by 32bit division and am I just missing it?  Pouring over the docs and a quick scan of the source has only turned up a few variants of 32bit by 16bit which I've been able to work around up to this point.  I thought it might be more elegant to calculate SPBRG load values on the fly instead of building a lookup for each chip clockrate/baudrate.  Then I tried to divide 16000000 by 921600 and said "Oh BUGS!"...  Will I need to build this one myself?  (or just pre-factor the living bejeezes out of this problem, too?)
>
>
> Just curious,
> craig bair
>
>   
> ...averaging may or may not help clarify data.
>     If Bill Gates walks into a bar,
>     the average patron becomes a millionaire...
>
> ------------------------------------------------------------------------------
> Subversion Kills Productivity. Get off Subversion & Make the Move to Perforce.
> With Perforce, you get hassle-free workflows. Merge that actually works.
> Faster operations. Version large binaries.  Built-in WAN optimization and the
> freedom to use Git, Perforce or both. Make the move to Perforce.
> http://pubads.g.doubleclick.net/gampad/clk?id=122218951&iu=/4140/ostg.clktrk
> _______________________________________________
> Flashforth-devel mailing list
> Fla...@li...
> https://lists.sourceforge.net/lists/listinfo/flashforth-devel
>

Re: [Flashforth-devel] Git(?), v5.0, and long division

[Thomas B. <bus...@gm...>]

Hallo Craig,

to No 1: maybe Sourcetree is a good tool for you.
http://www.sourcetreeapp.com/

Greetz Thomas


2014-03-05 12:53 GMT+01:00 craig bair <dab...@ya...>:

> Doing my first serious application project in FF3.8-Pic18 and having a
> blast with it, but you've gotten my curiosity up...
>
> 1)  Is there a tutorial or walk-through for using Git?  From what I can
> seee in SourceForge, it looks like a hash of sort-of-DIFF files for
> multiple projects and I've got no clue where to start with it.  Things
> sound like v5.0 is coming along nicely and it might be nice to take a look
> at it.
>
>

[Flashforth-devel] Git(?), v5.0, and long division

[craig b. <dab...@ya...>]

Doing my first serious application project in FF3.8-Pic18 and having a blast with it, but you've gotten my curiosity up...

1)  Is there a tutorial or walk-through for using Git?  From what I can seee in SourceForge, it looks like a hash of sort-of-DIFF files for multiple projects and I've got no clue where to start with it.  Things sound like v5.0 is coming along nicely and it might be nice to take a look at it.


2)  Is there a word for doing 32bit by 32bit division and am I just missing it?  Pouring over the docs and a quick scan of the source has only turned up a few variants of 32bit by 16bit which I've been able to work around up to this point.  I thought it might be more elegant to calculate SPBRG load values on the fly instead of building a lookup for each chip clockrate/baudrate.  Then I tried to divide 16000000 by 921600 and said "Oh BUGS!"...  Will I need to build this one myself?  (or just pre-factor the living bejeezes out of this problem, too?)


Just curious,
craig bair

 
...averaging may or may not help clarify data. 
   If Bill Gates walks into a bar, 
   the average patron becomes a millionaire...

Re: [Flashforth-devel] K22 timers

[Herman A. <exp...@vn...>]

Hi Mikael,

Ok, you can distribute it.

BR
Attila

----- Eredeti üzenet -----
Feladó: Mikael Nordman <mik...@pp...>
Dátum: Kedd, Március 4, 2014 9:11
Tárgy: Re: [Flashforth-devel] K22 timers
Címzett: fla...@li...


> Hi Attila,
> 
> I tried it and it worked just fine.
> 
> Can I put it in the distribution with your name on it ?
> 
> You can also make your own wiki page under the flashforth project if 
> you 
> want.
> 
> Actually it would be good to have contributor git repos.
> But I haven't checked if/how it can be done in sourceforge.
> 
> BR Mikael
> 
> On 03/04/2014 12:45 AM, Herman Attila wrote:
> > I am interested in your opinion connected to my VT100 wordset.
> >
> > BR
> > Attila
> 
> ------------------------------------------------------------------------------
> Subversion Kills Productivity. Get off Subversion & Make the Move to Perforce.
> With Perforce, you get hassle-free workflows. Merge that actually 
> works. 
> Faster operations. Version large binaries.  Built-in WAN optimization 
> and the
> freedom to use Git, Perforce or both. Make the move to Perforce.
> 
> _______________________________________________
> Flashforth-devel mailing list
> Fla...@li...
> 

Re: [Flashforth-devel] K22 timers

[Mikael N. <mik...@pp...>]

Hi Attila,

I tried it and it worked just fine.

Can I put it in the distribution with your name on it ?

You can also make your own wiki page under the flashforth project if you 
want.

Actually it would be good to have contributor git repos.
But I haven't checked if/how it can be done in sourceforge.

BR Mikael

On 03/04/2014 12:45 AM, Herman Attila wrote:
> I am interested in your opinion connected to my VT100 wordset.
>
> BR
> Attila

Re: [Flashforth-devel] K22 timers

[Herman A. <exp...@vn...>]

Hi Mikael

I have tested all timers, they work fine. Thanks for implementing.

Accidentally I have sent you a mail the to <mik...@pp...> instead of the mailing list.
I am interested in your opinion connected to my VT100 wordset.

BR
Attila

Re: [Flashforth-devel] PIC32

[Mikael N. <mik...@pp...>]

Hej Anders
I once looked at it but the MIPS assembly was ugly.
You have to push and pop the return stack manually for each subroutine call.

But still its doable.

I don't think I have time to do it for quite a while.
I also need to do some other stuff than write new Forths :-)

If you want do it thats fine with me.

Anyone ?

Mike

On 03.03.2014 22:45, Anders Eriksson wrote:
> Is there any chance that someone on this list is interested
> in writing FF for the PIC32?
>
>
> Best regards,
> /anders
>
>
> ------------------------------------------------------------------------------
> Subversion Kills Productivity. Get off Subversion & Make the Move to Perforce.
> With Perforce, you get hassle-free workflows. Merge that actually works.
> Faster operations. Version large binaries.  Built-in WAN optimization and the
> freedom to use Git, Perforce or both. Make the move to Perforce.
> http://pubads.g.doubleclick.net/gampad/clk?id=122218951&iu=/4140/ostg.clktrk
> _______________________________________________
> Flashforth-devel mailing list
> Fla...@li...
> https://lists.sourceforge.net/lists/listinfo/flashforth-devel
>

Re: [Flashforth-devel] (no subject)

[Mikael N. <mik...@pp...>]

Yes well,
FlashForth was designed to hold your hand to a degree.
Specifically the idea was  to make it impossible to nuke the FF kernel.
Having to re-flash the kernel all the time would be a nuisance, and ugly.

0 BASE ! nuked the kernel somehow, but now 5.0 catches divide by 0 
exceptions so that is not a problem.
Not even EMPTY helped, I dont really understand why, since the kernel is 
write protected, but now it will never happen.

1 BASE ! does not nuke it, but on PIC18 writes some crapola into eeprom, 
so that you
can only recover with EMPTY. On PIC24 and Atmega a restart is enough to 
clear the situation.

I guess all the other bases are fine ($2-$ffff).

BR Mike

On 03.03.2014 22:12, Doug Jackson wrote:
> On 3/03/2014 11:30 PM, craig bair wrote:
>> Point is, if you prevent everyone from doing something stupid, you prevent someone else from doing something extremely clever...  Don't let seatbelts become straight-jackets.
>>
> That's what I love about Forth - It is a real language - warts and all.
>
> - It doesn't hold your hand. It was never designed to gently stroke your
> arm while saying "That's ok - you can do it...."
> - It does *exactly* what you ask, when you ask, and how you ask.  It
> doesn't say - "Hang on, I have to talk to the floppy disk for the next 5
> seconds..."
> - It Never says "Are You Sure (Y/N)?"
> - If you would like to drop the dictionary containing your words, you
> are welcoime to, even while running the program that relied on them.
> Thats dynamic!
>
> Anything else looks way too much like BASIC for me :-)
>
> Doug
>
>
>
> ------------------------------------------------------------------------------
> Subversion Kills Productivity. Get off Subversion & Make the Move to Perforce.
> With Perforce, you get hassle-free workflows. Merge that actually works.
> Faster operations. Version large binaries.  Built-in WAN optimization and the
> freedom to use Git, Perforce or both. Make the move to Perforce.
> http://pubads.g.doubleclick.net/gampad/clk?id=122218951&iu=/4140/ostg.clktrk
> _______________________________________________
> Flashforth-devel mailing list
> Fla...@li...
> https://lists.sourceforge.net/lists/listinfo/flashforth-devel
>

[Flashforth-devel] Válasz: Re: K22 timers

[Herman A. <exp...@vn...>]

18F25K22

----- Eredeti üzenet -----
Feladó: Mikael Nordman <mik...@pp...>
Dátum: Hétfő, Március 3, 2014 9:28
Tárgy: Re: [Flashforth-devel] K22 timers
Címzett: fla...@li...


> Which chip ?
> 
> 
> ------------------------------------------------------------------------------
> Subversion Kills Productivity. Get off Subversion & Make the Move to Perforce.
> With Perforce, you get hassle-free workflows. Merge that actually 
> works. 
> Faster operations. Version large binaries.  Built-in WAN optimization 
> and the
> freedom to use Git, Perforce or both. Make the move to Perforce.
> 
> _______________________________________________
> Flashforth-devel mailing list
> Fla...@li...
>