Error - Could Not Find Definition Of Symbol
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building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now. Dismiss Notice C18: Error - could not find definition of symbol.. Discussion in 'Microcontrollers' started by SiriusHardware, Jun 29, error could not find definition of symbol mplab 2012. Page 1 of 2 1 2 Next > SiriusHardware New Member Joined: Jun definition of symbol in math 29, 2012 Messages: 17 Likes: 0 After several years of successfully writing moderately complex embedded programs for PIC16C series using a combination definition literary symbol of MPLAB / Hitech C I now need to use the PIC18F452 for a project. As Hitech C doesn't support the '18' parts I have been trying to get C18/MPLAB up and running. MPLAB C18 version:
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3.42. MPLAB: V8.00 The c program is LEDS.C from within the C18 directory. The project has been defined for the PIC18F452, which is also manually selected in configure/select device. In the project wizard I selected the MPLAB C18 toolsuite: I added the file LEDS.C to the source part of the project, and I have added the linker file P18F452_g.lkr to the Linker part of the project. I assume that's correct so far? When definition of symbol literary term I attempt to build this project the following error occurs: Error - could not find definition of symbol 'OpenTimer0' in file 'C:\picprojects\leds.o'. The 'c' file includes the following lines: #include
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Print Author Topic: Microchip C18 Linker Problem (Read 17945 times) 0 Members and 1 Guest are viewing this topic. hazzer123 Supreme Robot Posts: 460 Helpful? 3 Microchip C18 Linker http://www.electro-tech-online.com/threads/c18-error-could-not-find-definition-of-symbol.128316/ Problem « on: January 19, 2008, 01:42:18 PM » I am trying to control an LCD module with a PIC18F4525, using the XLCD for C module from application maestro. It didn't work with my previous project, so i started a new bare minimum one. And it still doesn't work. The code i have in my main.c is this - http://www.societyofrobots.com/robotforum/index.php?topic=2934.0 Code: [Select]#include
#include "xlcd.h"
void main(void) {
Nop();
}The output from build is this - QuoteClean: Deleting intermediary and output files.Clean: Done.Executing: "C:\MCC18\bin\mcc18.exe" -p=18F4525 /i"C:\MCC18\h" "xlcd.c" -fo="xlcd.o" -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa-MPLAB C18 v3.15 (demo)Copyright 1999-2005 Microchip Technology Inc.Days remaining until demo becomes feature limited: 54K:\Mplab\xlcd2\xlcd.c:552:Warning [2053] return value expectedK:\Mplab\xlcd2\xlcd.c:564:Warning [2053] return value expectedExecuting: "C:\MCC18\bin\mplink.exe" /l"C:\MCC18\lib" /k"C:\MCC18\lkr" "C:\MCC18\lkr\18f4525i.lkr" "K:\Mplab\xlcd2\xlcd.o" "C:\MCC18\lib\p18f4525.lib" /o"xlcd2.cof" /M"xlcd2.map" /WMPLINK 4.15, LinkerCopyright (c) 2007 Microchip Technology Inc.Error - could not find definition of symbol 'main' in file 'C:\MCC18\lib/c018i.o'.Errors : 1Link step failed.BUILD FAILED: Sat Jan 19 19:42:20 2008Anyone any ideas? It think its something to do with the Quote 'C:\MCC18\lib/c018i.o' Whys this have a forward slash? « Last Edit: January 19, 2008, 01:43:24 PM by hazzer123 » Logged Imperial College Robotics Societywww.icrobotics.co.uk rgcustodio Robot Overlord Posts: 217 Helpful? 0 Use "Search" and ye might find answers! Re: Microchip C18 Linker Problem « Reply #1 on: January 19, 2008, 01:57:39 PM » i think your makefile (if you have one) is incorrect.Code: [
just works, and they win. - Nuttyman54 [more] https://www.chiefdelphi.com/forums/showthread.php?t=35000 Chief Delphi > Technical > Programming Help with error https://forum.sparkfun.com/viewtopic.php?t=10353 please ? could not find definition of symbol 'Serial_Char_Callback' User Name Remember Me? Password CD-Media CD-Spy portal register members calendar new posts search FAQ rules Search Forums Show Threads Show Posts Advanced Search New Activity Since Last definition of Visit All Forums Subscribed Forums New Activity in Past 24 Hours All Forums Subscribed Forums Go to Page... View First Unread Thread Tools Rate Thread Display Modes #1 02-19-2005, 07:39 PM gemccnp Registered User no team Join Date: Jan 2005 Location: Montana Posts: 10 definition of symbol Help with error please ? could not find definition of symbol 'Serial_Char_Callback' Has anyone seen this error before ? If so, do you have any suggestions ? Make: The target "C:\mcc18\main.o" is up to date. Make: The target "C:\mcc18\user_SerialDrv.o" is up to date. Make: The target "C:\mcc18\user_routines.o" is up to date. Make: The target "C:\mcc18\user_routines_fast.o" is out of date. Executing: "c:\mcc18\bin\mcc18.exe" -p=18F8520 "user_routines_fast.c" -fo="user_routines_fast.o" /i"C:\mcc18\h" -D_FRC_BOARD -D_USE_CMU_CAMERA -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa- -nw=2066 Make: The target "C:\mcc18\ifi_utilities.o" is out of date. Executing: "c:\mcc18\bin\mcc18.exe" -p=18F8520 "ifi_utilities.c" -fo="ifi_utilities.o" /i"C:\mcc18\h" -D_FRC_BOARD -D_USE_CMU_CAMERA -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa- -nw=2066 Make: The target "C:\mcc18\ifi_startup.o" is out of date. Executing: "c:\mcc18\bin\mcc18.exe" -p=18F8520 "ifi_startup.c" -fo="ifi_startup.o" /i"C:\mcc18\h" -D_FRC_BOARD -D_USE_CMU_CAMERA -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa- -nw=2066 Make: The target "C:\mcc18\user_camera.o" is out of date. Executing: "c:\mcc18\bin\mcc18.exe" -p=18F8520 "user_camera.c" -fo="user_camera.o" /i"C:\mcc18\h" -D_FRC_BOARD -D_USE_CMU_CAMERA -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa- -nw=2066 Make:
Have you got the greatest 48 bit multiplier ever conceived? Prove it - post your code here. Moderator: phalanx Post a reply 2 posts • Page 1 of 1 could not find definition of symbol 'DelayRXHalfBitUART' by jabss » Sat Apr 12, 2008 7:26 pm Hello, I'm trying to improve my first LCD project http://forum.sparkfun.com/viewtopic.php?t=10096Now the next step is to have it receiving data through the serial line (writing some chars in hyper terminal, get the echo and also write it into the LCD).To accomplish this, I'm using the sw_uart.h library.According to the C18 compiler libraries doc. this should be very simple:We just need to have something similar to: Code: Select all#include
#include
void main( void )
{
char data
// configure software UART
OpenUART();
while( 1 )
{
data = ReadUART(); //read a byte
WriteUART( data ); //bounce it back
}
}The default ports for sw_uart.h are RB4 and RB5. If diferent ones are needed, we need to re-complile the library.OK, enough for intro. The problem is that I'm not even able to compile the simplest use of this library. It's failing in the link step.Just by having Code: Select allOpenUART(); in my codeI get the following link error: Executing: "C:\MCC18\bin\mplink.exe" /l"C:\MCC18\lib" "C:\Work\7.Private\My projects\PIC UBW\LEDSimple\LED modified_4\rm18f2455.lkr" "C:\Work\7.Private\My projects\PIC UBW\LEDSimple\LED modified_4\lcd.o" "C:\Work\7.Private\My projects\PIC UBW\LEDSimple\LED modified_4\main.o" /o"SERIAL.cof" /M"SERIAL.map" /WMPLINK 4.16, LinkerCopyright (c) 2008 Microchip Technology Inc.Error - could not find definition of symbol 'DelayRXHalfBitUART' in file 'openuart.O'.Errors : 1}I'm using the link file that I have been using up to now (rm18f2455.lkr)... Should I include something else for this sw_uart library