BS2 Stamp Defective? or what am I doing wrong

Archiver

Hello,

I'm having trouble getting my stamp to run more than a few
instructions at a time and I'm hoping someone more knowledgable than
myself can lend me a hand.

Its a BS2 BOE board, everything appears to work fine as far as
detecting the stamp and running programs.

The problem is the program will terminate without completing all the
steps and sometimes output a strange character to the debugger. The
program in question is below.

'{$STAMP BS2}

Counter VAR Byte

Init:
DEBUG "INIT"

Main:
FOR Counter = 1 TO 10
DEBUG ? Counter
PAUSE 500
NEXT
DEBUG "MAIN FINISHED"
END

Three runs produced the following output to the debugger

Run#1
=========
INITCounter = 1
Counter = 2
Counter = 3
Counter = 4

Run#2
=========
INITCounter = 1
Counter = 2
Counter = 3
Counter = 4
Counter = 5
Counter = 6
Cou

Archiver

In a message dated 5/31/2004 10:39:59 AM Eastern Daylight Time,
lyn913@y... writes:


> Main:
> FOR Counter = 1 TO 10
> DEBUG ? Counter
> PAUSE 500
> NEXT
> DEBUG "MAIN FINISHED"
> END
>

Change "END" to "goto main" and see what happens.


Sid Weaver
512K plug-in EEPROM.......
http://www.visualmuses.com/chipcircuit/index.html





[noparse][[/noparse]Non-text portions of this message have been removed]

Archiver

Perhaps you have a flaky power supply or regulator.

-- Jon Williams
-- Applications Engineer, Parallax
-- Dallas Office

---

Original Message

---

From: lyn913 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=R-brwdNfi-DVirPoYiLc8AXr_U4FcK5FVzdAkmmVy8iWCOoEXJZrgZxiYp92lCROPZwMOv01]lyn913@y...[/url
Sent: Monday, May 31, 2004 1:18 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] BS2 Stamp Defective? or what am I doing wrong


Hello,

I'm having trouble getting my stamp to run more than a few
instructions at a time and I'm hoping someone more knowledgable than
myself can lend me a hand.

Its a BS2 BOE board, everything appears to work fine as far as
detecting the stamp and running programs.

The problem is the program will terminate without completing all the
steps and sometimes output a strange character to the debugger. The
program in question is below.

'{$STAMP BS2}

Counter VAR Byte

Init:
DEBUG "INIT"

Main:
FOR Counter = 1 TO 10
DEBUG ? Counter
PAUSE 500
NEXT
DEBUG "MAIN FINISHED"
END

Three runs produced the following output to the debugger

Run#1
=========
INITCounter = 1
Counter = 2
Counter = 3
Counter = 4

Run#2
=========
INITCounter = 1
Counter = 2
Counter = 3
Counter = 4
Counter = 5
Counter = 6
Cou

Archiver

Yep! that's a weird problem but I've seen it before. most are caused by
insufficient power. What type of power supply are you using? If its a 9V
battery try replacing with an fresh 9V alkaline battery. the BS2 uses very
little power but certain instructions tend to pull peak current for very
brief periods. sometimes batteries and even cheap wall-warts just can't
keep up. Suggest using the DC adapter that came with your BOE board. It can
also be the length and type of your serial cable as well.


At 01:18 AM 5/31/2004, you wrote:
>Hello,
>
>I'm having trouble getting my stamp to run more than a few
>instructions at a time and I'm hoping someone more knowledgable than
>myself can lend me a hand.
>
>Its a BS2 BOE board, everything appears to work fine as far as
>detecting the stamp and running programs.
>
>The problem is the program will terminate without completing all the
>steps and sometimes output a strange character to the debugger. The
>program in question is below.
>
>'{$STAMP BS2}
>
>Counter VAR Byte
>
>Init:
>DEBUG "INIT"
>
>Main:
> FOR Counter = 1 TO 10
> DEBUG ? Counter
> PAUSE 500
> NEXT
> DEBUG "MAIN FINISHED"
> END
>
>Three runs produced the following output to the debugger
>
>Run#1
>=========
>INITCounter = 1
>Counter = 2
>Counter = 3
>Counter = 4
>
>Run#2
>=========
>INITCounter = 1
>Counter = 2
>Counter = 3
>Counter = 4
>Counter = 5
>Counter = 6
>Cou