this program works with PAUSE, but does not compile with DELAY_MS...why?

basicstampede

I'm experimenting with 2 versions of a program.·
One version has PAUSE 200 in main program.· The program works.
Then I commented that statement out and replaced it with DELAY_MS 200.· The program does not compile.

DELAY_MS works in a different program and works well (i.e. bug free).· (I'm borrowing it from JonnyMac).

So I don't understand why·replacing a PAUSE statement·with·a bug-free SUB would cause the program to not compile.

The two programs are attached.

Any insight would be appreciated.

basicstampede

oops.· and here is the version that compiles (uses PAUSE)

Zoot

These both appear to be the same (with the ISRflag based delay sub commented out).

When you say "won't compile" what happens? What error gets thrown?

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basicstampede

Zoot,

The error message is:· Unable to assemble due to errors in source code.

The differences between the 2 files is in Main program, not ISR.·
In·one version, I use PAUSE 200 for timing of main LED blinking on & off.
In the other version, I use DELAY_MS 200.

Thanks.

T&E Engineer

I just uncommented the DELAY_MS 200 and commented the PAUSE 200 and COMPILED (Ctrl-A) it ok with no errors. I did not PROGRAM (Ctrl-P) to an SX chip.

Have you tried to just COMPILE with out PROGRAMing the SX chip? This worked fine for me.

Shawn Lowe

Jon helped me with one of my programs and used a delay_ms subroutine that had SX 2.0 code. I think you have some of that code. Try this:

---

' Use: DELAY_MS duration
' -- replaces PAUSE

SUB DELAY_MS
\ SB __PARAMCNT.1
\ CLR __WPARAM12_MSB
PAUSE __WPARAM12
ENDSUB

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Shawn Lowe


When all else fails.....procrastinate!

basicstampede

T&E engineer,
Yes, I tried just Compile. It does not compile. It gives error message.

Shawn,
I used that DELAY_MS you listed above. It still does not compile.

Thanks for your suggestions.

basicstampede

The error message is "Address 275 is not within lower half of memory page"

Is my ISR too long?

Bean

Yes, your ISR code is pushing the address of the SUB down.

You can do two things:
· 1) Just put "ADDRESS $400" AFTER the PROGRAM line.
· 2) Use a jump to get to your ISR code.
"INTERRUPT 1000"
"GOTO Mark_ISR"
then the SUB declarations
then the ISR code starting with the "Mark_ISR:" line.

Bean.

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