Lpc2000

Robert Adsett wrote:

>At 11:17 PM 4/5/2006 +0000, ocnek1 wrote:
>  
>
>>Let me first say I'm pretty new at GNUARM so please be somewhat kind...
>>    
>>
>
>We'll try :)
>
>  
>
>>Now to my problem.  I was tring to use Robert Adsett's ibutton test
>>port with my WinARM installation.  Everything seems to go fine then I
>>get this Linking error.  I have no clue how to fix this, so if someone
>>could point it out or point me in the right direction it would be great.
>>
>>I did not make a ibutton library I just included the .c files in my
>>make file.  I would like to compile the ibutton port into a librar
>>file but that is another problem :)
>>
>>
>>Thanks,
>>Oc.
>>
>>Linking: test1.elf
>>arm-elf-gcc -mcpu=arm7tdmi -I. -g -DROM_RUN  -O0 -funsigned-char
>>-funsigned-bitfields -fpack-struct -fshort-enums -Wall
>>-Wstrict-prototypes -Wa,-adhlns=test1.o  -std=gnu99 -MD -MP -MF
>>.dep/test1.elf.d test1.o
>>C:\WinARM\arm-elf\include\arch\philips\ibutton\common\ownet.o
>>C:\WinARM\arm-elf\include\arch\philips\ibutton\common\lpcses.o
>>    
>>
>
><snip>
>
>  
>
>>C:\WinARM\arm-elf\include\arch\philips\ibutton\common\mbee.o
>>C:\WinARM\arm-elf\include\arch\philips\ibutton\common\pw77.o
>>build/crt0.o  --output test1.elf -nostartfiles
>>-Wl,-Map=test1.map,--cref -lm -lc -lnewlib-lpc -lm -Tbuild/LPC210x_ROM.ld
>>c:/winarm/bin/../lib/gcc/arm-elf/4.1.0/../../../../arm-elf/lib\libc.a(makebuf.o):
>>In function `__smakebuf':makebuf.c:(.text+0x110): undefined reference
>>to `isatty'
>>collect2: ld returned 1 exit status
>>make.exe: *** [test1.elf] Error 1
>>    
>>
>
>Apparently ld can't find isatty. I suspect either a link order problem or 
>possibly a lack of room.
>
>  
>
BTDT.  No, it is an extern reference from newlib, but it needs to be 
stubbed out:

============ begin isatty.c ==============
#include <unistd.h>

int isatty (int fd)
{
   return 0;
}
============= snip ==================

Just add that function in your sources (or a seperate file in your project).


TomW

-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
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