Help me with connection problem between PIC and LCD

[kievari]

Hi,
I'm one step further on the way to put my LCD to be driven by my PIC18F4550, still struggling with one error I can't understand:

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Release build of project `C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd4550.mcp' started.
Mon Sep 20 23:10:33 2010
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Clean: Deleting intermediary and output files.
Clean: Deleted file "C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.o".
Clean: Deleted file "C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd4550.mcs".
Clean: Done.
Executing: "C:\mcc18\bin\mcc18.exe" -p=18F4550 /i"C:\mcc18\h" "lcd-4550.c" -fo="LCD-4550.o" -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa-
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:134:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:135:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:137:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:138:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:139:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:140:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:141:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:142:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:143:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:144:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:145:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:146:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:147:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:148:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:149:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:150:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:151:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:152:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:153:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:154:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:155:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:156:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:157:Warning [2054] suspicious pointer conversion
C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd-4550.c:456:Warning [2058] call of function without prototype
Executing: "C:\mcc18\bin\mplink.exe" /l"C:\mcc18\lib" /k"C:\mcc18\lkr" "..\..\..\..\..\mcc18\lkr\18f4450.lkr" "lcd-4550.o" /z__MPLAB_BUILD=1 /o"lcd4550.cof" /M"lcd4550.map" /W
MPLINK 4.1, Linker
Copyright (c) 2006 Microchip Technology Inc.
Error - processor types do not agree across all input files.
Errors    : 1

Link step failed.
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Release build of project `C:\Documents and Settings\WHW\Desktop\prj\new_lcd\lcd4550.mcp' failed.
Mon Sep 20 23:10:35 2010
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BUILD FAILED

could anybody please give some idea getting out of this?

 

[john blue]

Re: MPLAB IDE, C18 error

Can you please upload the files for the project?

 

[kievari]

Re: MPLAB IDE, C18 error

Can you please upload the files for the project?

Sure John, I attached the project, but I finally got this "BUILD SUCCEEDED" and my question on this "PIC-LCD-HELLO-WORLD" project, has been changed a little.

Please help with connection problem between PIC and LCD:

After BUILD SUCCEEDED I programmed my PIC18F4550 with the HEX (which succeed too).

Next I connected my LCD to the PIC in the way you see on the image and turned the circuit on, and nothing happened

LCD is brand new, I have two of it, and I tested both. Connections seem to be in good state.

The LCD turns on, but as if it receives nothing from PIC, but only +5 and GND from my breadboard. Could you please give idea how to test it, having a look at my connections?