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Re: Serial Port Configuration


Hello again,

Now it seems to fail another thing. I have added File IO and Posix compatibility layer to use the POSIX functions to use the open, read, write etc...functions and i have made the configuration  described below(in previously mails). but when compiling the following errors appear:

undefined reference:cyg_selinit
undefined reference:cyg_selwakeup
undefined reference:cyg_selrecord

If I enable CYGFUN_IO_FILEIO_SELECT=enable, there is an error when building eCos, when disable it, no errors when building but do when compiling(see above).Which configuration should i make?
  
In the package ISO C and POSIX infrastructure should i enable the following too in oreder to use termios and POSIX functions?

CYGBLD_ISO_OPEN_HEADER=enable
CYGBLD_ISO_TERMIOS_HEADER=enable
CYGBLD_ISO_SELECT_HEADER=enable

Thanks in advance

Jonathan Larmour <jifl@eCosCentric.com> schrieb am 12.02.04 21:10:30:
> 
> Ali Rodgo wrote:
> > Jonathan, what do you mean with "configuration is consistent"?I have checked the libraries and all of those are created, fcntl.h, termios.h etc.I have programmed: 
> 
> Something like "ecosconfig check" on the command line, or checking there 
> are no conflicts if using the graphical eCos configuration tool 
> (View->Conflicts I think).
> 
> > fd=open("/dev/termios1", O_RDWR | O_NOCTTY) /* suppose to open the termios1  driver associate to the harrware serial driver /dev/ser1.
> > read(fd,buf,1)
> > 
> > I am really confused
> 
> open() comes from the fileio package. If it says it can't find open(), then 
> something is wrong with the way the fileio package was added, or eCos was 
> rebuilt.
> 
> Jifl
> 
> > Thanks in advance
> > 
> > Jonathan Larmour <jifl@eCosCentric.com> schrieb am 12.02.04 15:26:24:
> > 
> >>Ali Rodgo wrote:
> >>
> >>>Thank you very much, i have made the following configuration:
> >>>
> >>>CYGPKG_IO_SERIAL_TERMIOS=enable CYGPKG_IO_SERIAL_TERMIOS_TERMIOS0=enable
> >>> CYGPKG_IO_SERIAL_TERMIOS_TERMIOS1=enable 
> >>>GYGDAT_IO_SERIAL_TERMIOS_TERMIOS1_DEV="/dev/ser1" 
> >>>GYGDAT_IO_SERIAL_TERMIOS_TERMIOS0_DEV="/dev/ser0"
> >>>
> >>>
> >>>CYGPKG_IO_SERIAL_DEVICE=enable 
> >>>CYGPKG_IO_SERIAL_ARM_AT91_SERIAL1_NAME="/dev/ser1" 
> >>>CYGPKG_IO_SERIAL_ARM_AT91_SERIAL0_NAME="/dev/ser0"
> >>>
> >>>and the code you can see in the file serial.c. When compiling i receive
> >>>two errors in the open function:undefined reference to "open".
> >>
> >>open() should come from the FILEIO package which CYGPKG_IO_SERIAL_TERMIOS 
> >>requires. Are you sure your configuration is consistent?
> >>
> >>
> >>>I f i want to make a printf should now open the device(SERIAL A)
> >>>"/dev/termios0" and call the write function or call easy the printf
> >>>function as before(/dev/ttydiag)
> >>
> >>Assuming you aren't running GDB on the same port, it's probably best to use 
> >>/dev/termios0, or /dev/tty0 should work too.
> >>
> >>You can't use /dev/ttydiag on the same port as you're running the "full" 
> >>serial driver on.
> >>
> >>Jifl
> >>-- 
> >>eCosCentric    http://www.eCosCentric.com/    The eCos and RedBoot experts
> >>Visit us at Embedded World 2004, Nürnberg, Germany, 17-19 Feb, Stand 12-449
> >>--["No sense being pessimistic, it wouldn't work anyway"]-- Opinions==mine
> >>
> >>
> >>-- 
> >>Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
> >>and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
> >>
> > 
> > 
> > 
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> 
> 
> -- 
> eCosCentric    http://www.eCosCentric.com/    The eCos and RedBoot experts
> Visit us at Embedded World 2004, Nürnberg, Germany, 17-19 Feb, Stand 12-449
> --["No sense being pessimistic, it wouldn't work anyway"]-- Opinions==mine
> 
> 
> -- 
> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
> 


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