Serin timeout not working properly!

[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

[Megahertz]

Thank you Bruce. I learned something today that what a single press on the tab key can do for your code.

You are truly a master.
Thanks again.

[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.

[Megahertz]

Hi, I am back again with a problem. This time it looks like the interrupt is serviced but only once and code does not move forward. Can you please have a look at my code and advise me if I am doing it right ?

Define          OSC     4      ' OSCCON defaults to 4MHz on reset

INCLUDE "DT_INTS-14.bas"     ; Base Interrupt System
INCLUDE "ReEnterPBP.bas"     ; Include if using PBP interrupts
Include "modedefs.bas"

@ __CONFIG _INTRC_OSC_NOCLKOUT & _WDT_ON & _PWRTE_ON & _MCLRE_OFF & _CP_ON & _BOD_ON & _CPD_ON & _IESO_OFF & _FCMEN_ON & _WUREN_OFF

' Pin Definations are here
ToTx  	             var     GPIO.2     
ToRx		var	GPIO.3
Monitor		var  	GPIO.4
T1CON=49
main:
        ' Initialize the processor
        TRISIO = %011000        
        CMCON0 = 7              
        GPIO=0			       
        OPTION_REG = %00000111  
        WDA.4=1  : WPUDA.4=1
ASM
INT_LIST  macro    ; IntSource,    Label,  Type, ResetFlag?
       INT_Handler    TMR1_INT,  _Setval,   PBP,  yes
   endm
	INT_CREATE               ; Creates the interrupt processor
ENDASM

start0:
gpio.0=1 ' LED1

start:
		gpio.1=1 ' LED 2
@   INT_ENABLE   TMR1_INT
		Serin ToRx, N2400,["pp3"],code
@   INT_DISABLE   TMR1_INT
                           if code=0 then goto start0
                           ' ELSE CHECK OTHER VALUES FOR THE RECEIVED CODE
goto start0

Setval:
     code=0
	gpio.0=0 : pause 200
@ INT_RETURN

When power is applied this is what happens:
1) Both LED1 & LED2 glow
2) LED 1 (gpio.0) goes off
and system stays like this though LED should turn ON after 200mS. Please help me know what am I doing wrong?