Re: [Amforth-devel] Progress and More Difficulties with Hello World exercise

[pito <pi...@vo...>]

I've been using "Mosaic Terminal" (free download, designed for
forth)under XP. Just set "Wait for Echo" ON and "Binary Char Delay"
0.005 (or less). It runs 115200 8N1 without a problem (when your
crystal allows such speed, of course). Copy/paste sources. This
terminal is the only one I can use with amforth. For FlashForth the
Tera Term (FF supports Xon/Xoff) is the one which works fine any
speed. Pito

----- PŮVODNÍ ZPRÁVA -----
Od: "Kalus Michael" <mic...@on...>
Komu: "Everything around amforth"
<amf...@li...>
Předmět: Re: [Amforth-devel] Progress and More Difficulties with
Hello
Datum: 30.3.2011 - 4:47:21

> Hi.
> 
> 
> Am 29.03.2011 um 21:33 schrieb Matthias Trute:
> ..
> > Receiving characters is a completly different
> > thing. The characters
> > > can come at any time, therefore the code needs
> > to deal with the
> > > situation relativly fast (at least before the
> > next character
> > > arrives).
> 
> If you just want to connect a terminal to type in
> commands, amforth  
> is fast enough to handle this situation: Wait for
> a key, grab it, put  
> it in inputbuffer, wait again.
> amforths accepts keys till end of line, then
> interprets the line.
> See: uart-rx-poll.asm
> Since you - the user - wait for the ok of amforth
> to appear, there is  
> no overflow.
> I use 12Mhz chrystal, 14400 Baud, atmega168, works
> fine this way.
> 
> But to download a file you have to make shure your
> sending program  
> will immediatly stop sending if a CR is echoed,
> and continues after  
> OK is encounterd. Terminals usualy can not handle
> this situation.  
> That is why Mathias is using a Phyton script for
> downloads.
> 
> I use ZTerm with Mac OSX. In typing mode, it stops
> sending when XOFF  
> character is echoed, and continues after XON. So
> my amforth CR sends  
> xoff to the Terminal too, and the OK is followed
> by XON.
> (Typing mode: copy&paste forth souce into ZTerm
> window, do not use  
> ZTerms file transfer feature. Setup the ZTerm as
> VT100 with line  
> prompt character ^C ($13 = xoff)).
> 
> There may be about two characters on its way down
> to amforth till  
> terminal finaly stops sending more characters. I
> allways insert 4 or  
> more blanks at the beginning of each line in my
> forth sources to  
> handle this situation. This way interpretation of
> a line stays  
> successful even if some characters are lost in the
> handshaking process.
> 
> : hallo ." hallo world" ;
> ^^^^
> 
> Maybe this helps.
> Michael
> 
> 
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