Post by thread:[PIC]:MPLAB Warnings

I try to compile the following lines,part of a program for Pic16f84a, and I get in line <2> the "Message[302] : Register in operand not in bank 0. Ensure that bank bits are correct". and in line <5> a "Warning[202] : Argument out of range. Least significant bits used". I think that instructions are correct. Why those messages? 1 bsf STATUS,RP0 ;select memory register page 1 2 clrf TRISB ;make Port B output by clearing TRISB 3 bcf STATUS,RP0 ;go back to register page 0 Main 4 ;movlw 01010101B ;move 01010101 into W and 5 ;movwf PORTB ;output patter Thanks Renzo Giurini -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

At 07:05 PM 1/14/02 +0100, you wrote: >I try to compile the following lines,part of a program for Pic16f84a, and I >get in line <2> the >"Message[302] : Register in operand not in bank 0. Ensure that bank bits >are correct". >and in line <5> a "Warning[202] : Argument out of range. Least >significant bits used". First the last problem, you can note binary by doing: movlw b'01010101' I think movlw 01010101B might be assembled as hex. As for the 302 error, it is benign, it is a notification that you should make sure your bank bits are set properly for those lines. The assembler is dumb, it doesn't "know" what the bank bit settings are so it simply warns you. If you are confident with your bank settings, include this line in your program, possibly a header file or just at the top of the code file. errorlevel -302 This turns the warning notification on, if you want to be warned about it elsewhere in your code in case you forget to handle it properly: errorlevel +302 I use macros, here is a segment of mine: bank0 MACRO ;macro to select data RAM bank 0 errorlevel +302 bcf STATUS,RP0 bcf STATUS,RP1 ENDM bank1 MACRO ;macro to select data RAM bank 1 errorlevel -302 bsf STATUS,RP0 bcf STATUS,RP1 ENDM they are called like so: bank1 clrf trisb bank0 Jeff -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

Renzo Giurini wrote: > I try to compile the following lines,part of a program for Pic16f84a, > and I > get in line <2> the > "Message[302] : Register in operand not in bank 0. Ensure that bank bits > are correct". Perfectly correct! Your setting RP0 does NOT tell the assembler you selected bank 1. > > > and in line <5> a "Warning[202] : Argument out of range. Least > significant bits used". Again correct! the form is B'01010101' Putting a B at the end signals HEX characters {Quote hidden}> > I think that instructions are correct. Why those messages? > > 1 bsf STATUS,RP0 ;select memory register page 1 > 2 clrf TRISB ;make Port B output by > clearing TRISB > 3 bcf STATUS,RP0 ;go back to register page 0 > > Main > 4 ;movlw 01010101B ;move 01010101 into W and > 5 ;movwf PORTB ;output patter > > Thanks > Renzo Giurini > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > > > -- * | __O Thomas C. Sefranek spam_OUTtcsTakeThisOuTcmcorp.com |_-\<,_ Amateur Radio Operator: WA1RHP (*)/ (*) Bicycle mobile on 145.41, 448.625 MHz ARRL Instructor, Technical Specialist, VE Contact. hamradio.cmcorp.com/inventory/Inventory.html http://www.harvardrepeater.org -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

Thomas C. Sefranek <.....PICLISTKILLspam@spam@mitvma.mit.edu> wrote: > the form [for binary numbers in MPLAB] is B'01010101' > Putting a B at the end signals HEX characters Thomas: That's only true if your default radix is set to Hexadecimal. If it's set to Decimal, 01010101B is a perfectly-acceptable way to represent a binary number. -Andy === Andrew Warren -- aiwKILLspamcypress.com === Principal Design Engineer === Cypress Semiconductor Corporation === === Opinions expressed above do not === necessarily represent those of === Cypress Semiconductor Corporation -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

On Mon, 14 Jan 2002 12:33:01 -0800, Andrew Warren wrote: >Thomas C. Sefranek <.....PICLISTKILLspam.....mitvma.mit.edu> wrote: > >> the form [for binary numbers in MPLAB] is B'01010101' >> Putting a B at the end signals HEX characters > >Thomas: > >That's only true if your default radix is set to Hexadecimal. If >it's set to Decimal, 01010101B is a perfectly-acceptable way to >represent a binary number. > Excellent! I hadn't realized that. I've always hated using quotes around binary numbers. Regards, Bob -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.