Serin timeout not working properly!

[Megahertz]

The timeout period gets continuously reset if there's noise on the serial input pin. If you're trying to use this option with a noisy RF receiver, the timeout/label approach isn't going to work.

Are there any other options?
I tried removing timeout period and use DT Interrupts, but it gave list of following errors.

Executing: "C:\PBP\PBPW.EXE" -ampasmwin -oq -z   -p12F635 "TxRx.bas"
PICBASIC PRO(TM) Compiler 2.50b, (c) 1998, 2008 microEngineering Labs, Inc.
All Rights Reserved. 

ERROR: Variable wsave3 position request 416 beyond RAM_END 127.
ERROR: Variable wsave2 position request 288 beyond RAM_END 127.
ERROR: Variable wsave1 position request 160 beyond RAM_END 127.
ERROR: Unable to fit variable wsave
ERROR: Unable to fit variable RS1_Save
ERROR: Unable to fit variable RS2_SaveHalting build on first failure as requested.
BUILD FAILED: Thu Dec 31 14:13:38 2009

[Bruce]

Open DT_INTS-14.bas and read the first few lines about the wsave errors.

[Megahertz]

Thanks for showing the starting point. I have fired a bullet in the dark as I do not know much about ASM, banks and stuff. BUT it has reduced the errors.

I still have few errors left.
My DT_IN... .bas looks like this now:

;wsave       var byte    $20     SYSTEM      ' location for W if in bank0
wsave       var byte    $70     SYSTEM     ' alternate save location for W 
                                            ' if using $70, comment out wsave1-3
'
' --- IF any of these three lines cause an error ?? ---------------------------- 
'       Comment them out to fix the problem ----
' -- It depends on which Chip you are using, as to which variables are needed --
;wsave1      var byte    $A0     SYSTEM      ' location for W if in bank1
;wsave2      var byte    $120    SYSTEM      ' location for W if in bank2
;wsave3      var byte    $1A0    SYSTEM      ' location for W if in bank3

And the errors are following:

Executing: "C:\PBP\PBPW.EXE" -ampasmwin -oq -z   -p12F635 "TxRx.bas"
PICBASIC PRO(TM) Compiler 2.50b, (c) 1998, 2008 microEngineering Labs, Inc.
All Rights Reserved. 

ERROR: Unable to fit variable RR2_Save
ERROR: Unable to fit variable RS1_Save
ERROR: Unable to fit variable RS2_SaveHalting build on first failure as requested.
BUILD FAILED: Thu Dec 31 16:29:42 2009

Thanks

[Megahertz]

OK, did some lookaround for the problem.
I have also commented in ReEnterPBP.bas the following

 '   T3_Save     VAR WORD
 '   T4_Save     VAR WORD

Now it seems that I am quiet near but one warning message is there still :

Executing: ........"TxRx.bas"
PICBASIC PRO(TM) Compiler 2.50b, (c) 1998, 2008 microEngineering Labs, Inc.
All Rights Reserved. 
Warning[206] D:\BACKUP.........TXRX.ASM 752 : Found call to macro in column 1. (INT_CREATE)
Loaded D:\Backup..................TxRx.COD.
BUILD SUCCEEDED: Thu Dec 31 16:39:22 2009

Any advise if I should be bothered about the warning message?

[Bruce]

The 12F635 only has 64 bytes SRAM so if you're using DT ints with a PBP int handler you may need to free up some SRAM, and keep your int handler as simple as possible.

Hard to say without seeing what you're doing.

[Megahertz]

Hi Bruce, it seems we jumped across each others post at the same time. I have succeeded in building the project but a warning is there.

Warning[206] D:\BACKUP.........TXRX.ASM 752 : Found call to macro in column 1. (INT_CREATE)

Should I worry about it? Thanks for all the help.


P.S. Is there any online calculator around which can easily advise me when to expect the interrupt with TMR1 with 1:8 prescaler (4MHz) and also if DT Interrupts work with TMR0 in 12F635?

[Bruce]

Have you tried moving INT_CREATE out of column 1?

Edit: Look for a copy of Mister Es' calculator. Should be a link in a thread around here somewhere.

I don't think the calculator is going to help with what works & doesn't with DT ints, but Darrel already
answered part of your question back in this thread: http://www.picbasic.co.uk/forum/showthread.php?t=12354

[Megahertz]

Have you tried moving INT_CREATE out of column 1?

Column 1 ? What does it mean? Is it putting the ASM code somewhere in the middle of the code? Sorry for my ignorance on this topic.

[Bruce]

INT_CREATE in Column 1

ASM
INT_LIST  macro ; IntSource,     Label,    Type, ResetFlag?
    INT_Handler    RX_INT,  _DoIntStuff,   PBP,  yes
    endm
INT_CREATE               ; Creates the interrupt processor

    INT_ENABLE   RX_INT     ; enable external UART RX interrupts  
ENDASM

INT_CREATE not in Column 1

ASM
INT_LIST  macro ; IntSource,     Label,    Type, ResetFlag?
    INT_Handler    RX_INT,  _DoIntStuff,   PBP,  yes
    endm
    INT_CREATE               ; Creates the interrupt processor

    INT_ENABLE   RX_INT     ; enable external UART RX interrupts  
ENDASM

[Archangel]

Column 1 ? What does it mean? Is it putting the ASM code somewhere in the middle of the code? Sorry for my ignorance on this topic.

Column 1: leftmost column of each line. Asm is picky about where you put things, just start the line with several spaces.