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Thema: LCD Ansteuerung funzt nicht

  1. #1
    Erfahrener Benutzer Roboter-Spezialist
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    08.01.2006
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    LCD Ansteuerung funzt nicht

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    Hi @ all

    Das compilieren meines Codes funzt aber beim Linken hat er ein Problem. Was ist den da los??

    Fehlermeldung:
    > "make.exe" all

    -------- begin --------
    avr-gcc (GCC) 3.4.3
    Copyright (C) 2004 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions. There is NO
    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


    Linking: lcd_test.elf
    avr-gcc -mmcu=atmega8 -I. -gstabs -DF_CPU=8000000UL -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=lcd_test.o -If:/Programme/AVRlib -std=gnu99 -MD -MP -MF .dep/lcd_test.elf.d lcd_test.o --output lcd_test.elf -Wl,-Map=lcd_test.map,--cref -lm
    lcd_test.o(.text+0xa): In function `main':
    lcd_test.c:23: undefined reference to `lcd_init'
    lcd_test.o(.text+0x10):lcd_test.c:24: undefined reference to `lcd_puts'
    lcd_test.o(.text+0x16):lcd_test.c:25: undefined reference to `lcd_puts'
    lcd_test.o(.text+0x1c):lcd_test.c:26: undefined reference to `lcd_puts'
    lcd_test.o(.text+0x22):lcd_test.c:27: undefined reference to `lcd_puts'
    make.exe: *** [lcd_test.elf] Error 1

    > Process Exit Code: 2

    Der Code
    Code:
    /*************************************************************************
    Title:    testing output to a HD44780 based LCD display.
    Author:   Peter Fleury  <pfleury@gmx.ch>  http://jump.to/fleury
    File:     $Id: test_lcd.c,v 1.3 2003/12/10 19:32:48 peter Exp $
    Software: AVR-GCC 3.3
    Hardware: HD44780 compatible LCD text display
              ATS90S8515/ATmega if memory-mapped LCD interface is used
              any AVR with 7 free I/O pins if 4-bit IO port mode is used
    **************************************************************************/
    
    #include <stdlib.h>
    #include <avr/io.h>
    #include "lcd.h"
    
    
    
    int main(void)
    {
        lcd_init(LCD_DISP_ON); // LCD initialisieren
    	lcd_puts("Line 1\n");
    	lcd_puts("Line 2\n");
    	lcd_puts("Line 3\n");
    	lcd_puts("Line 4");
    	while(1){;}
    }
    Und die Header Datei:
    Code:
    #ifndef LCD_H
    #define LCD_H
    /*************************************************************************
     Title	:   C include file for the HD44780U LCD library (lcd.c)
     Author:    Peter Fleury <pfleury@gmx.ch>  http://jump.to/fleury
     File:	    $Id: lcd.h,v 1.12.2.2 2004/02/12 21:05:59 peter Exp $
     Software:  AVR-GCC 3.3
     Hardware:  any AVR device, memory mapped mode only for AT90S4414/8515/Mega
     
     Enhancements: additional functions Thomas Radetzki 2005
                   4 lines/2 proc display Thomas Radetzki 2/2006
    ***************************************************************************/
    
    /**
     @defgroup pfleury_lcd LCD library
     @code #include <lcd.h> @endcode
     
     @brief Basic routines for interfacing a HD44780U-based text LCD display
    
     Originally based on Volker Oth's LCD library,
     changed lcd_init(), added additional constants for lcd_command(), 
     added 4-bit I/O mode, improved and optimized code.
           
     Library can be operated in memory mapped mode (LCD_IO_MODE=0) or in 
     4-bit IO port mode (LCD_IO_MODE=1). 8-bit IO port mode not supported.
    
     Memory mapped mode compatible with Kanda STK200, but supports also 
     generation of R/W signal through A8 address line.
           
     @author Peter Fleury pfleury@gmx.ch http://jump.to/fleury
     
     @see The chapter Interfacing a HD44780 Based LCD to an AVR
          on my home page.
    
    */
    
    /*@{*/
    
    #if (__GNUC__ * 100 + __GNUC_MINOR__) < 303
    #error "This library requires AVR-GCC 3.3 or later, update to newer AVR-GCC compiler !"
    #endif
    
    #include <inttypes.h>
    #include <avr/pgmspace.h>
    
    /** 
     *  @name  Definitions for MCU Clock Frequency
     *  Adapt the MCU clock frequency in Hz to your target. 
     */
    #define XTAL 4000000              /**< clock frequency in Hz, used to calculate delay timer */
    
    /** 
     *  @name  Definitions for Display Size 
     *  Change these definitions to adapt setting to your display
     */
    #define LCD_LINES           4     /**< number of visible lines of the display */
    #define LCD_PROCs           2     /* 2 Procs. One for upper half, one for lower half. RC Line */
    #define LCD_DISP_LENGTH    27     /**< visibles characters per line of the display */
    #define LCD_LINE_LENGTH  0x40     /**< internal line length of the display    */
    #define LCD_START_LINE1  0x00     /**< DDRAM address of first char of line 1 */
    #define LCD_START_LINE2  0x40     /**< DDRAM address of first char of line 2 */
    #define LCD_START_LINE3  0x14     /**< DDRAM address of first char of line 3 */
    #define LCD_START_LINE4  0x54     /**< DDRAM address of first char of line 4 */
    #define LCD_WRAP_LINES      0     /**< 0: no wrap, 1: wrap at end of visibile line */
    
    
    #define LCD_IO_MODE      1         /**< 0: memory mapped mode, 1: IO port mode */
    #if LCD_IO_MODE
    /**
     *  @name Definitions for 4-bit IO mode
     *  Change LCD_PORT if you want to use a different port for the LCD pins.
     *
     *  The four LCD data lines and the three control lines RS, RW, E can be on the 
     *  same port or on different ports. 
     *  Change LCD_RS_PORT, LCD_RW_PORT, LCD_E_PORT if you want the control lines on
     *  different ports. 
     *
     *  Normally the four data lines should be mapped to bit 0..3 on one port, but it
     *  is possible to connect these data lines in different order or even on different
     *  ports by adapting the LCD_DATAx_PORT and LCD_DATAx_PIN definitions.
     *  
     */
    #define LCD_PORT         PORTB        /**< port for the LCD lines   */ /* RC Line */
    #define LCD_DATA0_PORT   LCD_PORT     /**< port for 4bit data bit 0 */
    #define LCD_DATA1_PORT   LCD_PORT     /**< port for 4bit data bit 1 */
    #define LCD_DATA2_PORT   LCD_PORT     /**< port for 4bit data bit 2 */
    #define LCD_DATA3_PORT   LCD_PORT     /**< port for 4bit data bit 3 */
    #define LCD_DATA0_PIN    4            /**< pin for 4bit data bit 0  */ /* RC Line */
    #define LCD_DATA1_PIN    5            /**< pin for 4bit data bit 1  */ /* RC Line */
    #define LCD_DATA2_PIN    6            /**< pin for 4bit data bit 2  */ /* RC Line */
    #define LCD_DATA3_PIN    7            /**< pin for 4bit data bit 3  */ /* RC Line */
    #define LCD_RS_PORT      LCD_PORT     /**< port for RS line         */ /* RC Line */
    #define LCD_RS_PIN       0            /**< pin  for RS line         */ /* RC Line */
    #define LCD_RW_PORT      LCD_PORT     /**< port for RW line         */ /* RC Line */
    #define LCD_RW_PIN       1            /**< pin  for RW line         */ /* RC Line */
    #define LCD_E_PORT       LCD_PORT     /**< port for Enable line     */ /* RC Line */
    #define LCD_E_PIN        2            /**< pin  for Enable line     */ /* RC Line */
    #define LCD_E2_PORT       LCD_PORT     /**< port for Enable line    */ /* RC Line */
    #define LCD_E2_PIN       3            /**< pin  for Enable line     */ /* RC Line */
    
    #elif defined(__AVR_AT90S4414__) || defined(__AVR_AT90S8515__) || defined(__AVR_ATmega64__) || \
          defined(__AVR_ATmega8515__)|| defined(__AVR_ATmega103__) || defined(__AVR_ATmega128__) || \
          defined(__AVR_ATmega161__) || defined(__AVR_ATmega162__)
    /*
     *  memory mapped mode is only supported when the device has an external data memory interface
     */
    #define LCD_IO_DATA      0xC000    /* A15=E=1, A14=RS=1                 */
    #define LCD_IO_FUNCTION  0x8000    /* A15=E=1, A14=RS=0                 */
    #define LCD_IO_READ      0x0100    /* A8 =R/W=1 (R/W: 1=Read, 0=Write   */
    #else
    #error "external data memory interface not available for this device, use 4-bit IO port mode"
    
    #endif
    
    
    /**
     *  @name Definitions for LCD command instructions
     *  The constants define the various LCD controller instructions which can be passed to the 
     *  function lcd_command(), see HD44780 data sheet for a complete description.
     */
    
    /* instruction register bit positions, see HD44780U data sheet */
    #define LCD_CLR               0      /* DB0: clear display                  */
    #define LCD_HOME              1      /* DB1: return to home position        */
    #define LCD_ENTRY_MODE        2      /* DB2: set entry mode                 */
    #define LCD_ENTRY_INC         1      /*   DB1: 1=increment, 0=decrement     */
    #define LCD_ENTRY_SHIFT       0      /*   DB2: 1=display shift on           */
    #define LCD_ON                3      /* DB3: turn lcd/cursor on             */
    #define LCD_ON_DISPLAY        2      /*   DB2: turn display on              */
    #define LCD_ON_CURSOR         1      /*   DB1: turn cursor on               */
    #define LCD_ON_BLINK          0      /*     DB0: blinking cursor ?          */
    #define LCD_MOVE              4      /* DB4: move cursor/display            */
    #define LCD_MOVE_DISP         3      /*   DB3: move display (0-> cursor) ?  */
    #define LCD_MOVE_RIGHT        2      /*   DB2: move right (0-> left) ?      */
    #define LCD_FUNCTION          5      /* DB5: function set                   */
    #define LCD_FUNCTION_8BIT     4      /*   DB4: set 8BIT mode (0->4BIT mode) */
    #define LCD_FUNCTION_2LINES   3      /*   DB3: two lines (0->one line)      */
    #define LCD_FUNCTION_10DOTS   2      /*   DB2: 5x10 font (0->5x7 font)      */
    #define LCD_CGRAM             6      /* DB6: set CG RAM address             */
    #define LCD_DDRAM             7      /* DB7: set DD RAM address             */
    #define LCD_BUSY              7      /* DB7: LCD is busy                    */
    
    /* set entry mode: display shift on/off, dec/inc cursor move direction */
    #define LCD_ENTRY_DEC            0x04   /* display shift off, dec cursor move dir */
    #define LCD_ENTRY_DEC_SHIFT      0x05   /* display shift on,  dec cursor move dir */
    #define LCD_ENTRY_INC_           0x06   /* display shift off, inc cursor move dir */
    #define LCD_ENTRY_INC_SHIFT      0x07   /* display shift on,  inc cursor move dir */
    
    /* display on/off, cursor on/off, blinking char at cursor position */
    #define LCD_DISP_OFF             0x08   /* display off                            */
    #define LCD_DISP_ON              0x0C   /* display on, cursor off                 */
    #define LCD_DISP_ON_BLINK        0x0D   /* display on, cursor off, blink char     */
    #define LCD_DISP_ON_CURSOR       0x0E   /* display on, cursor on                  */
    #define LCD_DISP_ON_CURSOR_BLINK 0x0F   /* display on, cursor on, blink char      */
    
    /* move cursor/shift display */
    #define LCD_MOVE_CURSOR_LEFT     0x10   /* move cursor left  (decrement)          */
    #define LCD_MOVE_CURSOR_RIGHT    0x14   /* move cursor right (increment)          */
    #define LCD_MOVE_DISP_LEFT       0x18   /* shift display left                     */
    #define LCD_MOVE_DISP_RIGHT      0x1C   /* shift display right                    */
    
    /* function set: set interface data length and number of display lines */
    #define LCD_FUNCTION_4BIT_1LINE  0x20   /* 4-bit interface, single line, 5x7 dots */
    #define LCD_FUNCTION_4BIT_2LINES 0x28   /* 4-bit interface, dual line,   5x7 dots */
    #define LCD_FUNCTION_8BIT_1LINE  0x30   /* 8-bit interface, single line, 5x7 dots */
    #define LCD_FUNCTION_8BIT_2LINES 0x38   /* 8-bit interface, dual line,   5x7 dots */
    
    
    #define LCD_MODE_DEFAULT     ((1<<LCD_ENTRY_MODE) | (1<<LCD_ENTRY_INC) )
    
    
    
    /** 
     *  @name Functions
     */
    
    
    /**
     @brief    Initialize display and select type of cursor
     @param    dispAttr \b LCD_DISP_OFF display off\n
                        \b LCD_DISP_ON display on, cursor off\n
                        \b LCD_DISP_ON_CURSOR display on, cursor on\n
                        \b LCD_DISP_ON_CURSOR_BLINK display on, cursor on flashing             
     @return  none
    */
    extern void lcd_init(uint8_t dispAttr);
    
    
    /**
     @brief    Clear display and set cursor to home position
     @param    void                                        
     @return   none
    */
    extern void lcd_clrscr(void);
    
    
    /**
     @brief    Set cursor to home position
     @param    void                                        
     @return   none
    */
    extern void lcd_home(void);
    
    
    /**
     @brief    Set cursor to specified position
     
     @param    x horizontal position\n (0: left most position)
     @param    y vertical position\n   (0: first line)
     @return   none
    */
    extern void lcd_gotoxy(uint8_t x, uint8_t y);
    
    
    /**
     @brief    Display character at current cursor position
     @param    c character to be displayed                                       
     @return   none
    */
    extern void lcd_putc(char c);
    
    
    /**
     @brief    Display string without auto linefeed
     @param    s string to be displayed                                        
     @return   none
    */
    extern void lcd_puts(const char *s);
    
    /**
     @brief    Display number as Hex Value without auto linefeed 
     @param    int to be displayed
     @return   none
    */
    extern void lcd_put_h(const int data);
    
    /**
     @brief    Display number as Dec Value without auto linefeed 
     @param    int to be displayed
     @return   none
    */
    extern void lcd_put_d(const int data);
    
    
    /**
     @brief    Display string from program memory without auto linefeed
     @param    s string from program memory be be displayed                                        
     @return   none
     @see      lcd_puts_P
    */
    extern void lcd_puts_p(const char *progmem_s);
    
    
    /**
     @brief    Send LCD controller instruction command
     @param    cmd instruction to send to LCD controller, see HD44780 data sheet
     @return   none
    */
    extern void lcd_command(uint8_t cmd);
    
    
    /**
     @brief    New line or first line if already last line
     @param    none
     @return   none
    */
    void lcd_New_Line(void);
    
    
    
    
    /**
     @brief macros for automatically storing string constant in program memory
    */
    #define lcd_puts_P(__s)         lcd_puts_p(PSTR(__s))
    
    /*@}*/
    
    
    
    #endif //LCD_H
    Weiß jeman was da los ist?

    Danke im Voraus

    Gruß Robert

  2. #2
    Erfahrener Benutzer Roboter Experte
    Registriert seit
    30.09.2004
    Ort
    In der Nähe von Esslingen am Neckar
    Beiträge
    706
    Hi Robert,
    hast du die lcd.c nicht per Makefile eingebunden? Da in dieser die Funktionen wie lcd_init(), lcd_puts()... drinstehen!!!
    Gruß michi

  3. #3
    Erfahrener Benutzer Roboter-Spezialist
    Registriert seit
    08.01.2006
    Ort
    Gratkorn
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    Beiträge
    207
    Hi Mich

    Danke !!

    Hab nun in der Makefile das stehen: SRC = $ lcd.c

    Jedoch bekomm ich jetzt eine andere Fehlermeldung:

    > "make.exe" all

    -------- begin --------
    avr-gcc (GCC) 3.4.3
    Copyright (C) 2004 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions. There is NO
    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


    Linking: lcd_test.elf
    avr-gcc -mmcu=atmega8 -I. -gstabs -DF_CPU=8000000UL -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=lcd.o -If:/Programme/AVRlib -std=gnu99 -MD -MP -MF .dep/lcd_test.elf.d lcd.o --output lcd_test.elf -Wl,-Map=lcd_test.map,--cref -lm
    C:/WinAVR/bin/../lib/gcc/avr/3.4.3/../../../../avr/lib/avr4/crtm8.o(.init9+0x0): undefined reference to `main'
    make.exe: *** [lcd_test.elf] Error 1

    > Process Exit Code: 2

    Danke im Voraus

    Gruß Robert

  4. #4
    Erfahrener Benutzer Robotik Einstein
    Registriert seit
    22.05.2005
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    12°29´ O, 48°38´ N
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    2.731
    Hallo,

    es müssen natürlich alle c-Dateien bei SRC angegeben werden, denn alle Dateien sollen compiliert werden.
    In der Regel gibts da noch weiter oben (im Makefile) eine Zeile mit TARGET, da gibt man den Namen an, wie die generierte Datei heissen soll, also die ganzen binaries, und die HEX-Datei.

    Ein Ausschnitt mit den wichtigsten(hier erwähnten) Variablen vom Makefile:
    Code:
    # Target file name (without extension).
    TARGET = hauptmain
    
    # List C source files here. (C dependencies are automatically generated.)
    SRC = $(TARGET).c
    
    # If there is more than one source file, append them above, or adjust and
    # uncomment the following:
    SRC += lcd.c

  5. #5
    Erfahrener Benutzer Roboter-Spezialist
    Registriert seit
    08.01.2006
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    Gratkorn
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    207
    Danke

    Gruß Robert

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