This is the mail archive of the ecos-discuss@sources.redhat.com mailing list for the eCos project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: Serial Port Configuration


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: 

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

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
> 


______________________________________________________________________________
Nachrichten, Musik und Spiele schnell und einfach per Quickstart im 
WEB.DE Screensaver - Gratis downloaden: http://screensaver.web.de/?mc=021110


--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]