Post by thread:help needed with mpasmwin errors

Hi, can anyone on the list give a newcomer to PIC programming (though not to assembley programming) some help, tell me what I am doing wrong on the following piece of code? I am using MPASMWIN v02.01 and PICPROG 1.2b (by Bryan Rentoul- http://www.igrin.co.nz/~bryanh/picprog/picprog12b.zip ) and the piece of code comes from an LCD demo programme by Peter Ouwehand. It's set for a 16c84. I can't work out why I am getting the error messages, as far as I can see the code should work (aren't they famous last words...); originally it had 0xf8 for the operand in line 101 but I changed that so it would not try and set the unused high bits- it didn't change the errors at all. The include file sets (amongst many other things) STATUS EQU H'0003' The hex file also causes an error with PICPROG when I try to load it, it says "Address larger than rom encountered" and aborts the load. I can load other .hex files with no problems so whatever is causing it appears to be in this particular .hex file. Many thanks for any help and/or advice you can give me, Ken. ---------------------------------------------------------------------------- ------------------------------ 0009 0185 00097 CLRF PORTA ; ALL PORT output should output Low. 000A 0186 00098 CLRF PORTB 00099 000B 1683 00100 BSF STATUS, RP0 ; Select bank 1 000C 3018 00101 MOVLW 0x18 ; RA2-0 outputs, RA4-3 inputs Message[302]: Register in operand not in bank 0. Ensure that bank bits are correct. 000D 0085 00102 MOVWF TRISA MPASM 02.01 Released LCD.ASM 4-17-1998 2:59:35 PAGE 3 LOC OBJECT CODE LINE SOURCE TEXT VALUE 000E 3000 00103 MOVLW 0x00 ; RB7-0 outputs Message[302]: Register in operand not in bank 0. Ensure that bank bits are correct. 000F 0086 00104 MOVWF TRISB Message[302]: Register in operand not in bank 0. Ensure that bank bits are correct. 0010 1781 00105 BSF OPTION_REG, NOT_RBPU 00106 ; Disable PORTB pull-ups 00107 0011 1283 00108 BCF STATUS, RP0 ; Select bank 0 00109 0012 2040 00110 CALL LCDINIT ; Initialize LCDisplay ---------------------------------------------------------------------------- -----------------------------

At 10:14 AM 17/04/98 +1000, you wrote: {Quote hidden}>Hi, can anyone on the list give a newcomer to PIC programming (though not >to assembley programming) some help, tell me what I am doing wrong on the >following piece of code? > >I am using MPASMWIN v02.01 and PICPROG 1.2b (by Bryan Rentoul- >http://www.igrin.co.nz/~bryanh/picprog/picprog12b.zip ) and the piece of >code comes from an LCD demo programme by Peter Ouwehand. It's set for a >16c84. I can't work out why I am getting the error messages, as far as I >can see the code should work (aren't they famous last words...); originally >it had 0xf8 for the operand in line 101 but I changed that so it would not >try and set the unused high bits- it didn't change the errors at all. The >include file sets (amongst many other things) > >STATUS EQU H'0003' > >The hex file also causes an error with PICPROG when I try to load it, it >says > >"Address larger than rom encountered" > >and aborts the load. I can load other .hex files with no problems so >whatever is causing it appears to be in this particular .hex file. > >Many thanks for any help and/or advice you can give me, Ken. > >---------------------------------------------------------------------------- >------------------------------ >0009 0185 00097 CLRF PORTA ; ALL >PORT output should output Low. >000A 0186 00098 CLRF PORTB > 00099 >000B 1683 00100 BSF STATUS, RP0 ; Select >bank 1 >000C 3018 00101 MOVLW 0x18 ; RA2-0 >outputs, RA4-3 inputs >Message[302]: Register in operand not in bank 0. Ensure that bank bits are >correct. >000D 0085 00102 MOVWF TRISA > MPASM 02.01 Released LCD.ASM 4-17-1998 2:59:35 >PAGE 3 > > >LOC OBJECT CODE LINE SOURCE TEXT > VALUE > >000E 3000 00103 MOVLW 0x00 ; RB7-0 >outputs >Message[302]: Register in operand not in bank 0. Ensure that bank bits are >correct. >000F 0086 00104 MOVWF TRISB >Message[302]: Register in operand not in bank 0. Ensure that bank bits are >correct. >0010 1781 00105 BSF OPTION_REG, NOT_RBPU > 00106 ; Disable >PORTB pull-ups > 00107 >0011 1283 00108 BCF STATUS, RP0 ; Select >bank 0 > 00109 >0012 2040 00110 CALL LCDINIT ; >Initialize LCDisplay >---------------------------------------------------------------------------- >----------------------------- > >These are not error messages, but warnings, in this case as you have set the RP0 bit there is no problem. I don't think that this warning can be turned off. Also the waning message is for the:- MOVWF TRISB In line 102, 104 and 105. As for the HEX file error, a complete listing may be required. -=====================================================================- Dennis Plunkett: Embedded Hardware, Software design NEC Australia DRMASS Line Interface cards TRX software ISDN interface card ph 03 9264-3867 -=====================================================================-

>Message[302]: Register in operand not in bank 0. Ensure that bank >bits are correct. This message is meant to warn you to set the RAM Page select bits for the RAM address you have specified in your instruction. If you have done this correctly, ignore the message. Disable it with errorlevel -(302) I don't know why the 'address larger' problem happens. It usually means that you have assembled with the wrong processor, and the compiler is trying to write to a ROM location that doesn't exist. Tony PicNPoke Multimedia 16F84 Beginners PIC Tools. **PLUS** - PicNPlay - PicNPlan - PicNPrep - PicNPost PicNPort - DT Type Saver - *new* PicNQuiz. Recent addition - DogBoneZ Component. http://www.dontronics.com/picnpoke.html