excerise 8 chapter 3

Comments

• Chris Savage Parallax Engineering Posts: 14,406

  2005-09-06 20:11 edited 2005-09-06 20:11

  Hello,
  
  ·· Please specify the book you are referring to.
  
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  Chris Savage
  Parallax Tech Support
  csavage@parallax.com
• Jon Williams Posts: 6,491

  2005-09-06 20:59 edited 2005-09-06 20:59

  When all else fails, consult the help file where DO-WHILE is discussed. What you'll find is that you have enable PBASIC 2.5 syntax -- like this:
  
  ' {$PBASIC 2.5}
  
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  Jon Williams
  Applications Engineer, Parallax
• KDDonald Posts: 2

  2005-09-08 20:02 edited 2005-09-08 20:02

  I am using the What's a Microcontroller version 2.1.· I tried the Help on the program and it did not find anything under DO ... While statement.· It actually froze the program.· Is there any where else I can research this statement.
• dandreae Posts: 1,375

  2005-09-08 21:31 edited 2005-09-08 21:31

  You can access the "Help" file by clicking on "Start" in Windows and then click on "Programs" and then click on the "Parallax" folder and access the "Help" file from there.
  
  Dave
  
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  Dave Andreae
  
  Tech Support
  dandreae@parallax.com
  Http://www.parallax.com
  
  ·
• japer Posts: 105

  2005-09-14 00:46 edited 2005-09-14 00:46

  ok had to look through the syntax book
  do while/until
  do
  while "run loop if condition are true"
  until "terminate loop if condition are true"
  loop
  are condition true or false ?
  
  you can always clear the code by running an erase program to the stamp
  if the stamp is locking up ?
• Andy Lindsay (Parallax) Posts: 1,919

  2005-09-14 03:34 edited 2005-09-14 03:34

  On page 91, there is an example of a DO...LOOP UNTIL code block.
  
  DO
  LOOP UNTIL condition
  
  It keeps repeating –until- you have pressed the button (IN3 = 1).
  
  The exercise is telling you to modify the loop so that it looks like this:
  
  DO WHILE condition
  LOOP
  
  Instead of repeating the loop –until- a particular condition happens, the loop should keep repeating –while- a condition is true (while the button is not pressed). So, what's the value of IN3 when the button is pressed. What's the value of IN3 when the button is not pressed? What condition do you want to put in there?
  
  It’s good that you’re looking things up in the PBASIC Syntax Guide. You’ll get better at understanding the syntax descriptions with practice. You can also download the BASIC Stamp Manual (or open it from your CD like in Chapter 1). In many cases, there will be more explanations and example programs there.