Hi
I’m wrestling to get away from link errors when referencing to AccelStepper functions used in another class.
I created a SLDR_wagon class in which I implemented an AccelStepper motor.
Everywhere I call accelstepper functions I’ve got this kind of errors:
SLDR_wagon\SLDR_wagon.cpp.o: In function …
"undefined reference to AccelStepper::run()
In the ‘verbose’ compiler output I can not discover any reference to AccelStepper elements or include files which couldn’t be found. Looks like AccelStepper is not included in the compilation of the sketch.
Someone any idea why this is failing…?!
Below some relevant code to show how I set things up.
Already tried to add #include <AccelStepper.h> in every file involved (stepper.ino, SldrWagon.cpp, SldrWagon.h) but that doesn’t seems to be the solution.
Fred.
///---- slider.ino -----\\\
// here not much more like:
#include <Arduino.h>
#include <SLDR_wagon.h>
SldrWagon slider;
void setup()
{
Serial.begin( 9600 );
}
void loop() {
slider.setSpeed( 1000.0 );
}
///---- SldrWagon.h> -----\\\
#include <Arduino.h>
#include <AccelStepper.h>
//contains
class SldrWagon : public AccelStepper {
public:
SldrWagon( void );
void setSpeed(void);
//etc
/etc
}
///---- SldrWagon.cpp> -----\\\
#include <Arduino.h>
#include <AccelStepper.h>
#include <SldrWagon.h>
SldrWagon::SldrWagon( void ) {
AccelStepper::AccelStepper( 2, _STEPPER_STEP_PIN_, _STEPPER_DIR_PIN_);
setAccelerateDist( 50 ) ; // not posted here
_initStepper(); // not posted here
return;
}
void SldrWagon::setSpeed( const float speed ) {
AccelStepper::setSpeed( speed );
return;
}
-------------------------- (erros listed when building the sketch. just a subset. I left a lot similar lines out )
C:\Arduino\arduino-1.0.5-r2-windows\arduino-1.0.5-r2\hardware\tools\avr\bin\avr-g++ -c -g -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections -mmcu=atmega328p -DF_CPU=16000000L -MMD -DUSB_VID=null -DUSB_PID=null -DARDUINO=105 -IC:\Arduino\arduino-1.0.5-r2-windows\arduino-1.0.5-r2\hardware\arduino\cores\arduino -IC:\Arduino\arduino-1.0.5-r2-windows\arduino-1.0.5-r2\hardware\arduino\variants\standard -IC:\Users\fred\Dropbox\data\Arduino - Projects\libraries\SLDR_wagon -IC:\Users\fred\Dropbox\data\Arduino - Projects\libraries\LCD_Keypad C:\Users\fred\AppData\Local\Temp\build7297760677170099481.tmp\Slider.cpp -o C:\Users\fred\AppData\Local\Temp\build7297760677170099481.tmp\Slider.cpp.o
C:\Arduino\arduino-1.0.5-r2-windows\arduino-1.0.5-r2\hardware\tools\avr\bin\avr-g++ -c -g -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections -mmcu=atmega328p -DF_CPU=16000000L -MMD -DUSB_VID=null -DUSB_PID=null -DARDUINO=105 -IC:\Arduino\arduino-1.0.5-r2-windows\arduino-1.0.5-r2\hardware\arduino\cores\arduino -IC:\Arduino\arduino-1.0.5-r2-windows\arduino-1.0.5-r2\hardware\arduino\variants\standard -IC:\Users\fred\Dropbox\data\Arduino - Projects\libraries\SLDR_wagon -IC:\Users\fred\Dropbox\data\Arduino - Projects\libraries\LCD_Keypad -IC:\Users\fred\Dropbox\data\Arduino - Projects\libraries\SLDR_wagon\utility C:\Users\fred\Dropbox\data\Arduino - Projects\libraries\SLDR_wagon\SLDR_wagon.cpp -o C:\Users\fred\AppData\Local\Temp\build7297760677170099481.tmp\SLDR_wagon\SLDR_wagon.cpp.o
C:\Arduino\arduino-1.0.5-r2-windows\arduino-1.0.5-r2\hardware\tools\avr\bin\avr-g++ -c -g -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections -mmcu=atmega328p -DF_CPU=16000000L -MMD -DUSB_VID=null -DUSB_PID=null -DARDUINO=105 -IC:\Arduino\arduino-1.0.5-r2-windows\arduino-1.0.5-r2\hardware\arduino\cores\arduino -IC:\Arduino\arduino-1.0.5-r2-windows\arduino-1.0.5-r2\hardware\arduino\variants\standard -IC:\Users\fred\Dropbox\data\Arduino - Projects\libraries\SLDR_wagon -IC:\Users\fred\Dropbox\data\Arduino - Projects\libraries\LCD_Keypad -IC:\Users\fred\Dropbox\data\Arduino - Projects\libraries\LCD_Keypad\utility C:\Users\fred\Dropbox\data\Arduino - Projects\libraries\LCD_Keypad\LCD_keypad.cpp -o C:\Users\fred\AppData\Local\Temp\build7297760677170099481.tmp\LCD_Keypad\LCD_keypad.cpp.o
C:\Arduino\arduino-1.0.5-r2-windows\arduino-1.0.5-r2\hardware\tools\avr\bin\avr-gcc -Os -Wl,--gc-sections -mmcu=atmega328p -o C:\Users\fred\AppData\Local\Temp\build7297760677170099481.tmp\Slider.cpp.elf C:\Users\fred\AppData\Local\Temp\build7297760677170099481.tmp\Slider.cpp.o C:\Users\fred\AppData\Local\Temp\build7297760677170099481.tmp\SLDR_wagon\SLDR_wagon.cpp.o C:\Users\fred\AppData\Local\Temp\build7297760677170099481.tmp\LCD_Keypad\LCD_keypad.cpp.o C:\Users\fred\AppData\Local\Temp\build7297760677170099481.tmp\core.a -LC:\Users\fred\AppData\Local\Temp\build7297760677170099481.tmp -lm
SLDR_wagon\SLDR_wagon.cpp.o: In function `SldrWagon::_setSpeed(float, unsigned char)':
C:\Users\fred\Dropbox\data\Arduino - Projects\libraries\SLDR_wagon/SLDR_wagon.cpp:412: undefined reference to `AccelStepper::setSpeed(float)'
SLDR_wagon\SLDR_wagon.cpp.o: In function `SldrWagon::_singleStep()':
C:\Users\fred\Dropbox\data\Arduino - Projects\libraries\SLDR_wagon/SLDR_wagon.cpp:352: undefined reference to `AccelStepper::move(long)'
C:\Users\fred\Dropbox\data\Arduino - Projects\libraries\SLDR_wagon/SLDR_wagon.cpp:353: undefined reference to `AccelStepper::run()'
SLDR_wagon\SLDR_wagon.cpp.o: In function `SldrWagon':
C:\Users\fred\Dropbox\data\Arduino - Projects\libraries\SLDR_wagon/SLDR_wagon.cpp:124: undefined reference to `AccelStepper::AccelStepper(unsigned char, unsigned char, unsigned char, unsigned char, unsigned char, bool)'
C:\Users\fred\Dropbox\data\Arduino - Projects\libraries\SLDR_wagon/SLDR_wagon.cpp:125: undefined reference to `AccelStepper::AccelStepper(unsigned char, unsigned char, unsigned char, unsigned char, unsigned char, bool)'
SLDR_wagon\SLDR_wagon.cpp.o:(.rodata._ZTV9SldrWagon+0x4): undefined reference to `AccelStepper::disableOutputs()'
SLDR_wagon\SLDR_wagon.cpp.o:(.rodata._ZTV9SldrWagon+0x6): undefined reference to `AccelStepper::enableOutputs()'
SLDR_wagon\SLDR_wagon.cpp.o:(.rodata._ZTV9SldrWagon+0x8): undefined reference to `AccelStepper::setOutputPins(unsigned char)'
SLDR_wagon\SLDR_wagon.cpp.o:(.rodata._ZTV9SldrWagon+0xa): undefined reference to `AccelStepper::step(long)'
SLDR_wagon\SLDR_wagon.cpp.o:(.rodata._ZTV9SldrWagon+0xc): undefined reference to `AccelStepper::step0(long)'
SLDR_wagon\SLDR_wagon.cpp.o:(.rodata._ZTV9SldrWagon+0xe): undefined reference to `AccelStepper::step1(long)'