Hello Jan,

Erich puts the case for being able to build AmForth very well.

I build AmForth on OS X if that is of any help.

Kind regards,

Tristan


On 07Jun19 21:37, Erich Wälde wrote:
> Hello Jan,
> 
> Jan Kromhout via Amforth-devel writes:
> 
> > Hello Tristan,Erich
> >
> > This is far over my knowledge, but will give it a try.
> >
> > But when I try to load the spi.frt I get an error here
> >
> > |C|   97|\ send a byte, ignore recieved byte
> > |S|   98|: c!spi ( c -- )
> > |S|   99|    c!@spi drop
> > |E=3D ?? -13 6
> 
> In avr8/words you will find 3 files:
> > 2spirw.asm  n-spi.asm  spirw.asm
> which in turn will define 4 words:
> > !@spi  n@spi n!spi  c!@spi
> all of these come to life if you include their .asm files and
> reassemble.
> 
> Rebuilding your project: yes, it might look intimidating the
> first time. However, think about the gains:
> 
> - you can chose another board with a different controller
> 
> - you can change the clock crystal to another frequency, e.g. I
>   strongly prefer baud rate crystals, e.g. 11059200 Hz.
> 
> - you can change the baud rate of the serial interface (within
>   limits).
> 
> - you can extend your AmForth system with a large number or words
>   to fit your project.
> 
> - you are not locked to use somehow prebuild .hex files
> 
> The sky is the limit! So: Don't give up too soon, please!
> 
> This might help if you are linux based:
> http://amforth.sourceforge.net/UG/linux.html
> A very long time ago I wrote this:
> http://amforth.sourceforge.net/pr/Fosdem2011-proceedings-amforth.pdf
> 
> If you are Windows based, have a look at=20
> http://amforth.sourceforge.net/UG/windows.html
> 
> Cheers,
> Erich
> 
> >
> > Is this also a assembler word?
> >
> > Kindly regards,
> >
> > Jan
> >
> >
> >
> >
> >> Op 7 jun. 2019, om 19:50 heeft Erich Wälde <ew.fo...@nassur.net> het 
> >> volgende geschreven:
> >> 
> >> Hello Jan,
> >> 
> >> 
> >> Jan Kromhout writes:
> >> 
> >>> Hi Tristan,
> >>> 
> >>> What to load in the right sequence to fellow the examples in 
> >>> http://amforth.sourceforge.net/TG/recipes/SPI.html ?
> >>> If I have the right sequence of loading the screens I will start as you 
> >>> mentiod.
> >>> 
> >>> Kind regards,
> >>> 
> >>> Jan
> >>> 
> >>> 
> >>> 
> >>> Op 7 jun. 2019, om 19:25 heeft Tristan Williams 
> >>> <h...@tjnw.co.uk<mailto:h...@tjnw.co.uk>> het volgende geschreven:
> >>> 
> >>> Hi Jan,
> >>> 
> >>> No don’t have. Why?
> >>> 
> >>> Because words/spirw.asm provides c!@spi which makes using the
> >>> hardware spi easier, and it is used in the recipes
> >> 
> >> you see the filename? "words/spirw.asm"? Please note: .asm
> >> suffix. This means that in your project directory, you need to
> >> add one line to the file "dict_appl.inc". Then you need to
> >> reassemble the project and load the resulting .hex files to your
> >> controller. I strongly recommend learning this workflow, if you
> >> didn't already.
> >> 
> >> Cheers,
> >> Erich
> >> 
> >> 
> >>> 
> >>> http://amforth.sourceforge.net/TG/recipes/SPI.html
> >>> 
> >>> Separately, if you haven't read it already
> >>> 
> >>> https://en.wikipedia.org/wiki/Serial_Peripheral_Interface
> >>> 
> >>> will help a lot, as will starting with a simple SPI device (e.g. io
> >>> expander, digital potentiometer) first.
> >>> 
> >>> Kind regards,
> >>> 
> >>> Tristan
> >>> 
> >>> 
> >>> Verstuurd vanaf mijn iPad
> >>> 
> >>> Op 7 jun. 2019 om 17:25 heeft Tristan Williams 
> >>> <h...@tjnw.co.uk<mailto:h...@tjnw.co.uk>> het volgende geschreven:
> >>> 
> >>> Hello Jan,
> >>> 
> >>> A quick question first.
> >>> 
> >>> You have built your AmForth hex files with words/spirw.asm ?
> >>> 
> >>> Kind regards,
> >>> 
> >>> Tristan
> >>> 
> >>> On 07Jun19 17:06, Jan Kromhout via Amforth-devel wrote:
> >>> Hello
> >>> 
> >>> I have take a close look into SPI routines.
> >>> I really not understand them.
> >>> 
> >>> I need simple make a connection withe the arduino in amForth.
> >>> The basics I understand how to make a pin high or low etc.
> >>> But I don’t know how to start to initialize the SPI etc.
> >>> Can someone help me with this or give a simple example?
> >>> The interface is using the standard pins for the SPI.
> >>> 
> >>> I mark the part of the code with <===========? where I have trouble to 
> >>> convert to amForth.
> >>> 
> >>> Thanks for any help.
> >>> 
> >>> Cheers,
> >>> 
> >>> Jan
> >>> 
> >>> 
> >>> #include "SPI.h"
> >>> 
> >>> #define SCK_PIN   13
> >>> #define MISO_PIN  12
> >>> #define MOSI_PIN  11
> >>> #define SS_PIN    10
> >>> 
> >>> void umFPU_begin(void)
> >>> {
> >>>  digitalWrite(SS_PIN, HIGH);
> >>>  pinMode(SS_PIN, OUTPUT);
> >>>  umFPU_reset();
> >>> }
> >>> 
> >>> //------------------- reset 
> >>> -------------------------------------------------
> >>> 
> >>> void umFPU_reset()
> >>> {
> >>> digitalWrite(SS_PIN, LOW);
> >>> 
> >>> // disable SPI.Master
> >>> SPI.end();   <===========?
> >>> 
> >>> // reset the FPU
> >>> digitalWrite(MOSI_PIN, HIGH);
> >>> for (byte i = 0; i < 80; i++)
> >>> {
> >>>  digitalWrite(SCK_PIN, HIGH);
> >>>  digitalWrite(SCK_PIN, LOW);
> >>> }
> >>> digitalWrite(MOSI_PIN, LOW);
> >>> 
> >>> delay(10);
> >>> 
> >>> // enable SPI.Master
> >>> SPI.setDataMode(SPI_MODE0);
> >>> SPI.setBitOrder(MSBFIRST);
> >>> SPI.setClockDivider(SPI_CLOCK_DIV4);
> >>> SPI.begin();  <===========?
> >>> 
> >>> digitalWrite(SS_PIN, HIGH);
> >>> }
> >>> 
> >>> byte umFPU_read(void)
> >>> {
> >>> byte bval;
> >>> digitalWrite(SS_PIN, LOW);
> >>> umFPU_readDelay();
> >>> bval = SPI.transfer(0); <===========?
> >>> digitalWrite(SS_PIN, HIGH);
> >>> return bval;
> >>> }
> >>> 
> >>> void umFPU_write_1(byte b1)
> >>> {
> >>> digitalWrite(SS_PIN, LOW);
> >>> SPI.transfer(b1);  <===========?
> >>> digitalWrite(SS_PIN, HIGH);
> >>> }
> >>> 
> >>> _______________________________________________
> >>> Amforth-devel mailing list for http://amforth.sf.net/
> >>> Amforth-devel@lists.sourceforge.net<mailto:Amforth-devel@lists.sourceforge.net>
> >>> https://lists.sourceforge.net/lists/listinfo/amforth-devel
> >>> 
> >>> 
> >>> _______________________________________________
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> >>> https://lists.sourceforge.net/lists/listinfo/amforth-devel
> >>> 
> >>> 
> >>> 
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> >>> 
> >>> 
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> >>> https://lists.sourceforge.net/lists/listinfo/amforth-devel
> >>> 
> >>> 
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> >> 
> >> 
> >> -- 
> >> May the Forth be with you ...
> >> 
> >> 
> >> _______________________________________________
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> >> <http://amforth.sf.net/>
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> >> <https://lists.sourceforge.net/lists/listinfo/amforth-devel>
> >
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> 
> 
> -- 
> May the Forth be with you ...
> 
> 
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