Re: [ECOS] Serial Port Configuration

["Ali Rodgo" <alirodgo at web dot de>]

Hello,
With building i mean to create the ecos library(build-->library) and with compling i mean a program(gcc)
See please my comments bleow

> > 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?
> 
> There's something seriously wrong with your configuration. 
> CYGFUN_IO_FILEIO_SELECT should have been enabled to start off with. Try 
> starting over with a new configuration. I also don't understand what you 
> mean about building and compiling... building and compiling mean the same 
> to me.

Yes it is enabled when starting, but when building the library, there is an error.

> 
> > 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
> 
> Those should already be enabled. If not, then I wonder, are you using eCos 
> 2.0 or recent CVS? Or 1.3.1? If 1.3.1, then upgrade.
> 
I am using eCos 2.0.

Ok I will try to find out what is wrong,if i dont find the solution :-( i will show you my small code and my configuration. I would be gratefull if you could help me with this.The only what i want to do is to read/write from/to the "/dev/ser1" EB40A serial port( which is connected to a host pc) and make an application with threads, signals handlers, semaphores, all of this using the Posix functions implemented on eCos.

Thank you very much, Jonathan




> Jifl
> 
> > 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
> 
> 
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> Visit us at Embedded World 2004, Nürnberg, Germany, 17-19 Feb, Stand 12-449
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> 
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