Warning and Message

PBP2.50
MPASM
PIC12F509

I'm seeing...

• Warning[202] ... Argument out of range. Least significant bits used.
  Message[306] ... Crossing page boundary -- ensure page bits are set.

What do they mean? What, if anything, need I do?

Code:

---

'=======================| RF RECEIVER |=========================
'MR26X.BAS
'PIC12C509A @ 4MHz          529 words                uses MPASM

'Pin 1 - Vdd
'Pin 2 - GPIO.5
'Pin 3 - GPIO.4
'Pin 4 - GPIO.3
'Pin 5 - GPIO.2 RS232 output @ 9600bps
'Pin 6 - GPIO.1 Receives up to 48 bits of PDM/PWM RF with lead-in of 2-9mS
'Pin 7 - GPIO.0
'Pin 8 - Vss

'TMR0 1:64 30=1.9mS, 145=9.3mS - 1:16 50=0.8mS, 94=1.5ms, 155=2.5ms
'===============================================================

@ __config _IntRC_OSC & _WDT_ON & _MCLRE_ON & _CP_OFF

DEFINE OSCCAL_1K 1
DEFINE OSC 4
       
RF      VAR        byte[6]
i      VAR        byte 
bytes        VAR        byte                 
sof          VAR        byte
                       
        SerOut GPIO.2,2,["MR26X",13,10]
        SerOut GPIO.2,2,["Copyright © 2009  dlh",13,10]
       
init:        RF[0]=0:RF[1]=0:RF[2]=0:RF[3]=0:RF[4]=0:RF[5]=0
        OPTION_REG=%01000101                'TMR0 1:64 prescaler, no PU
        While !GPIO.1:Wend                'wait rising edge       
        TMR0=0                                'clear TMR0
        While GPIO.1:Wend              'wait falling edge
        sof=TMR0                        'read TMR0
        If (sof<30) Then init                '1920µS
        If (sof>145) Then init                '9280µS
        OPTION_REG=%01000011                'TMR0 1:16 prescaler, no PU
        While !GPIO.1:Wend                'wait rising edge
        TMR0=0                                'reset TMR0                       
        i=0
        Repeat
          While GPIO.1                  'wait falling edge
            If TMR0>155 Then break          '2480µS
          Wend                                'falling edge
          While !GPIO.1                'wait rising edge
            If TMR0>155 Then break        '2480µS
          Wend                                'rising edge
          If (TMR0<50) Then init        '800µS
          If (TMR0>94) Then                '1500µS
            RF.0(i)=1                               
          EndIf
          TMR0=0
          i=i+1
        Until (i>47)
break:  If (i<12) Then init
        bytes=i/8
        If i//8 Then
          bytes=bytes+1
        EndIf
        SerOut GPIO.2,2,[i]
        For i = 0 to bytes-1
            SerOut GPIO.2,2,[RF[i]]
        Next   
        SerOut GPIO.2,2,[32,sof,13,10]
        GoTo init
               
        End

---

dhouston, I would look at the .LST file and find the occurance of "warning" and then see what variable it is trying to manipulate. This should give you a clue...

Dave Purola,
N8NTA

Here's the .LST file section...

Code:

---

00F9  0918              M        call    SEROUT
                      00078        SEROUT?C        0FFA9h
Warning[202]: Argument out of range.  Least significant bits used.
00FA  0CA9              M        movlw  0FFA9h
                          M        L?CALL  SEROUT

---

By commenting out each SerOut instance (one-by-one) and recompiling, I isolated it to the copyright message. Without it, both the warning and message go away.

I'll have to wait until Digikey ships my 12F509 chips to test it.

dhouston , I just ran your code and if you get rid of the copyright character the code compiles... Where are you getting the copyright symbol anyways? I don't think the assembler understands it....

Dave Purola,
N8NTA

Quote:

---

Originally Posted by Dave

Where are you getting the copyright symbol anyways? I don't think the assembler understands it....

---

It was copied and pasted from my source code for an Atmel AVR compiler. The ASCII chart in Appendix D of the PBP manual only goes to 127 so any extended character is likely to cause this. © is ascii 169 (depending on the font).

EDIT: The same copyright line compiles and works OK with a 12F629. It must be a limitation of the 12-bit cores. Anything greater than Ascii 126 causes the error.