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Re: Serial Port Configuration
- From: "Ali Rodgo" <alirodgo at web dot de>
- To: "JonathanLarmour" <jifl at eCosCentric dot com>
- Cc: ecos-discuss at ecos dot sourceware dot org
- Date: Thu, 12 Feb 2004 16:47:42 +0100
- Subject: Re: [ECOS] Serial Port Configuration
- Organization: http://freemail.web.de/
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
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