Hi,
I compiler your example and I got: undefined reference to `__eerd_block_m128'
-------------- Clean: Debug in EEPROMtest (compiler: GNU AVR GCC Compiler)---------------
Cleaned "EEPROMtest - Debug"
-------------- Build: Debug in EEPROMtest (compiler: GNU AVR GCC Compiler)---------------
avr-gcc.exe -mmcu=atmega128 -Wall -DF_CPU=16000000UL -g -std=c99 -IC:\WinAVR-20100110\avr\include -c main.c -o obj\Debug\main.o
avr-g++.exe -LC:\WinAVR-20071221\avr\lib -LC:\WinAVR-20100110\avr\lib -o bin\Debug\EEPROMtest.elf obj\Debug\main.o -mmcu=atmega128 -Wl,-Map=bin\Debug\EEPROMtest.map,--cref
obj\Debug\main.o: In function `main':
C:\Temp\EEPROM test\EEPROMtest/main.c:9: undefined reference to `__eerd_block_m128'
Process terminated with status 1 (0 minutes, 1 seconds)
1 errors, 0 warnings (0 minutes, 1 seconds)
I am using the Code::Blocks IDE. I noticed that it has included "-LC:\WinAVR-20071221\avr\lib" in the linker command even though this folder does not exist (C:\WinAVR-20100110\avr\lib does exist). I have searched within Code::Blocks to figure out why this is there but to no avail. Since the folder does not exist I assume that it is not the cause of the problem.
I have included the map at the bottom of this email. Maybe you could compare this to your map (although you did not mention what processor you targeted your compile to).
Thanks in advance for any help you might be able to lend ...
Cheers,
Chuck Hackett
"Good judgment comes from experience, experience comes from bad judgment"
7.5" gauge Union Pacific Northern (4-8-4) 844 http://www.whitetrout.net/Chuck
> -----Original Message-----
> From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com]
> On Behalf Of dkinzer@gmail.com
> Sent: Wednesday, November 06, 2013 2:44 PM
> To: AVR-Chat@yahoogroups.com
> Subject: [AVR-Chat] RE: Using ATMega1284p EEPROM
>
>
>
> Can you post example code that produces the error? The following code
> compiles and links fine for me using WinAVR20100110.
>
> #include <stdint.h>
> #include <avr/eeprom.h>
>
> uint8_t buf[20];
>
> int
> main(void)
> {
> eeprom_read_block(buf, (const uint8_t *)0, sizeof(buf));
> }
>
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Allocating common symbols
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Name Origin Length Attributes
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lock 0x00830000 0x00000400 rw !x
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c:/winavr-20100110/bin/../lib/gcc/avr/4.3.3/../../../../avr/lib/avr51/crtm128.oMessage
RE: [AVR-Chat] RE: Using ATMega1284p EEPROM
2013-11-06 by Chuck Hackett