Jan,

A number of things.

The hex file you have found may not be one for the Arduino
Mega2560. If I remember correctly, the distribution has an appl folder
for the atmega2561 and the configuration assembler file

https://sourceforge.net/p/amforth/code/HEAD/tree/trunk/appl/atmega2561/atmega256.asm

suggests that it was built for an ATmega2561 with an 14.745600MHz crystal and 
uart1
hosting the AmForth interpreter.

I adjusted the AmForth make system (on OSX) to build a custom hex file
for the Arduino Mega2560 which uses ATmega2560 chip and a 16MHz
crystal. I also put the AmForth interpreter on uart0. The AmForth
build system is one of its many strengths, though getting it to work
on OS X does require a few extra steps.

I used these fuse values for my Arduino Mega2560

> avrdude: safemode: Fuses OK (E:FF, H:99, L:CE)

Finally, what hex programmer you use may be important with the Mega2560. I
used an avrisp2 compatible programmer and had no problems. However, I can
confirm that my usbtiny programmer couldn't program my Mega2560 successfully.

Best wishes,
Tristan








On 15Feb19 14:20, Jan Kromhout wrote:
> Tristan,
> 
> Found the hex files for the Mega, but don’t found the fuse values.
> Please can you help me out with these.
> 
> Cheers,
> 
> Jan
> 
> 
> 
> > Op 15 feb. 2019, om 13:21 heeft Jan Kromhout <krom1...@hotmail.com> het 
> > volgende geschreven:
> > 
> > Tristan,
> > 
> > Thank. Where to find the hex files for the mega, and what fuse settings you 
> > have used.
> > I wont to play with it this evening. Verry exciting how it works.
> > Cheers,
> > 
> > Jan
> > 
> > Verstuurd vanaf mijn iPad
> > 
> >> Op 15 feb. 2019 om 12:45 heeft Tristan Williams <h...@tjnw.co.uk> het 
> >> volgende geschreven:
> >> 
> >> Jan,
> >> 
> >> There is a link "source" in the text, but below is the url from the
> >> link. 
> >> 
> >> https://www.mostlymostly.uk/files/source/uart1.forth
> >> 
> >> Tristan
> >> 
> >> 
> >>> On 15Feb19 11:15, Jan Kromhout via Amforth-devel wrote:
> >>> Hi Tristan,
> >>> 
> >>> How can I acces the source, the link shows only an overview!
> >>> 
> >>> Cheers,
> >>> 
> >>> Jan
> >>> 
> >>> Verstuurd vanaf mijn iPad
> >>> 
> >>>> Op 15 feb. 2019 om 09:21 heeft Tristan Williams <h...@tjnw.co.uk> het 
> >>>> volgende geschreven:
> >>>> 
> >>>> 
> >>>> 
> >>>> I've linked (below) some AmForth words I've written to help me use the
> >>>> second hardware serial port on an AVR atmega mcu, should there be one.
> >>>> 
> >>>> https://www.mostlymostly.uk/post/2019.02.01/
> >>>> 
> >>>> 
> >>>> Tristan
> >>>> 
> >>>> 
> >>>> 
> >>>> 
> >>>> _______________________________________________
> >>>> Amforth-devel mailing list for http://amforth.sf.net/
> >>>> Amforth-devel@lists.sourceforge.net
> >>>> https://lists.sourceforge.net/lists/listinfo/amforth-devel
> >>> 
> >>> 
> >>> 
> >>> _______________________________________________
> >>> Amforth-devel mailing list for http://amforth.sf.net/
> >>> Amforth-devel@lists.sourceforge.net
> >>> https://lists.sourceforge.net/lists/listinfo/amforth-devel
> >>> 
> >> 
> >> 
> >> _______________________________________________
> >> Amforth-devel mailing list for http://amforth.sf.net/
> >> Amforth-devel@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/amforth-devel
> > 
> > 
> > _______________________________________________
> > Amforth-devel mailing list for http://amforth.sf.net/
> > Amforth-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/amforth-devel
> 
> 
> _______________________________________________
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> Amforth-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/amforth-devel


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