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--- projects:430eforth:start [2020-06-10 18:12] – [Terminal Program on your PC] mka
+++ projects:430eforth:start [2022-01-14 04:49] (aktuell) – [TI Launchpad] mka
@@ Zeile 32: / Zeile 32: @@
 {{ :projects:430eforth:430eforth-ide.zip |430eforth-ide}} - die Hex-Datei des eForth ist in der IDE((Die 430eForth-IDE ist eine angepasste Reimplementation der 4e4th-IDE von Dirk Brühl -  http://www.somersetweb.com/430eForth/430eForth-IDE.zip )) enthalten, um mit dem [[http://www.ti.com/tool/MSP-EXP430G2|TI Launchpad]] zu programmieren\\
 {{ :projects:430eforth:eforth_lessons.pdf |Lektionen}} - Beispiele in eForth 430G2553((eForth ist //case sensitive//, alle Forth Worte sind in GROSSCHREIBUNG. ))\\
+Und hier ist Ting's Quelle: {{ :projects:430eforth:eforth.zip}}
@@ Zeile 117: / Zeile 119: @@
 {{some_examples_part_1.pdf|Here are some examples.}}
-**And the additional information  in the book**
+[[https://www.amazon.co.uk/dp/B088P1CW83/ref=sr_1_fkmr0_2?dchild=1&keywords=sforth+as+Arduino+Sketch&qid=1589713127&s=books&sr=1-2-fkmr0|And the additional information in the book]].
-https://www.amazon.co.uk/dp/B088P1CW83/ref=sr_1_fkmr0_2?dchild=1&keywords=sforth+as+Arduino+Sketch&qid=1589713127&s=books&sr=1-2-fkmr0
 ===== Some small Examples =====
-The terminal display shows
+The terminal display shows:
+  0  0  0  ok>
+These four zeros show the top 4 values of the Data stack.\\
-  0  0  0  ok>  These four zeros show the top 4 values of the Data stack.
+With((<CR> Press Carriage Return Button (enter). )):
-with
+ <CR>
- (CR)
+ <CR>
- (CR)
+ <CR>
- (CR)
+ <CR>
-CR)
+it changes to:
-it changes to
+  2  3  4  ok>
-  2  3  4  ok>
-now try
-. (CR)
-. (CR)
-. (CR)
-. (CR)
-and the 4 values are displayed and disappear from the stack and back to 0  0  0  0  ok>
-**The usual HELLO WORLD   we can achieve like this:**
+Now try
+  . <CR>
+  . <CR>
+  . <CR>
+  . <CR>
+and the 4 values are displayed and disappear from the stack which is back to:
+  0  0  0  ok>
-Define a new Forth Word
-:   HELLO1  ." HELLO WORLD " ;  (CR)
-:  start a new Word definition
-HELLO1 the name of the new Word
-."  Start a text definition
-HELLO WORLD  the text to be printed
-"   Marker for the end of the text
-; end of new Word definition
-And try it out:
+==== The usual HELLO WORLD   we can achieve like this: ====
-hello1 (CR)HELLO WORLD
-and format the output a bit:
+Define a new Forth Word:
+  :   HELLO1  ." HELLO WORLD " ;  <CR>
+'':'' starts a new Word definition, ''HELLO1'' is the name of the new Word.
+'' ." ''  starts a text definition.
+''HELLO WORLD'' is  the text to be printed.
+And ''"'' marks the end of the text.
+Finaly '';'' ends new Word definition.
-:  HELLO2  CR  CR  ." HELLO WORLD "  CR ;  (CR)
+And try it out:
-a few additional CRs will make it better readable
-hello2 (CR)
+  hello1 <CR>  HELLO WORLD
-HELLO WORLD
+and format the output a bit. A few additional CRs will make it better readable:
+  :  HELLO2  CR  CR  ." HELLO WORLD "  CR ;  <CR>
+  hello2 <CR>
+  HELLO WORLD
+==== And now let us control one Bit in the IO. Here the on-board LED ====
-**And now let us control one Bit in the IO. Here the on-board LED**
+24 POKE <CR>
+  \ Will set bit 5 of the port to OUTPUT in the Data Direction Register   0  0  1  0    0  0  0  0
+  \ 20 is the data bit to be stored, and 24 is the DDR Register address in hex
-24 POKE (CR)
-\ will set bit 5 of the port to OUTPUT in the Data Direction Register   0  0  1  0    0  0  0  0
+25 POKE (CR)
-\ 20 is the data bit to be stored, and 24 is the DDR Register address in hex
+  \  Will set Bit 5 in the OUTPUT Register to HIGH  - LED is on            0  0  1  0    0  0  0  0
+  \  20 is the OUTPUT bit to be stored and 25 in hex is the Output Port Register
-25 POKE (CR)
-\  Will set Bit 5 in the OUTPUT Register to HIGH  - LED is on            0  0  1  0    0  0  0  0
+25 POKE (CR)
-\  20 is the OUTPUT bit to be stored and 25 in hex is the Output Port Register
+  \  Will set Bit 5 in the OUTPUT Register to LOW  - LED is off
+  \  here 00 is stored in the Output Register
-25 POKE (CR)
-\  Will set Bit 5 in the OUTPUT Register to LOW  - LED is off
-\  here 00 is stored in the Output Register
-The data sheet I used is http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-7810-Automotive-Microcontrollers-ATmega328P_Datasheet.pdf
+I used this [[http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-7810-Automotive-Microcontrollers-ATmega328P_Datasheet.pdf
+|ATmega328P Datasheet]].
 And for now only page 280 is important, which shows the addresses for the ports,
-especially here now Port B: \\
+especially here now those two Port-B-addresses:
-HEX  is the DDR (DDR = Data Direction Register) to set bits to OUTPUT and
+  *24 HEX is the DDR (DDR = Data Direction Register) to set bits to OUTPUT and
-HEX for the OUTPUT Register to set bits to 1 or 0  HIGH or LOW.
+  *25 HEX for the OUTPUT Register to set bits to 1 or 0  HIGH or LOW.
 **And the relevant file of these examples**
@@ Zeile 199: / Zeile 201: @@
 With Forth we can poke around in all internals using the Forth commands, read and write IOs - even mess up the CPU – so please be careful as you might have to restart the Forth and loose the work done before.
 And this is done using only 2 commands, added especially to this eForth version:
-**PEEK**  -  Read the contents at memory location  xx
+  *PEEK  -  Read the contents at memory location  xx
-**POKE**  -  Overwrite contents at memory location xx with new data yy.
+  *POKE  -  Overwrite contents at memory location xx with new data yy.
 And if you have now licked blood and have the appropriate know-how and tools, you can flash in the extended version of this eForth - but then the bootloader will be overwritten.
@@ Zeile 215: / Zeile 217: @@
 or as well as book at
-https://www.amazon.co.uk/gp/product/1726868478/ref=dbs_a_def_rwt_bibl_vppi_i21
+[[https://www.amazon.co.uk/gp/product/1726868478/ref=dbs_a_def_rwt_bibl_vppi_i21|amazon]].
 \\
 \\