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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: Wed, 18 Feb 2004 09:28:36 +0100
- Subject: Re: [ECOS] Serial Port Configuration
- Organization: http://freemail.web.de/
Thanks for the answer, see my comments below please.
Jonathan Larmour <jifl@eCosCentric.com> schrieb am 18.02.04 07:56:55:
>
> Ali Rodgo wrote:
> > Hello
> >
> > the problem described below is now resolved.I had to create a new eCos
> > configuration only with the Posix package and after that include the
> > following, in order to avoid conflicts.
>
> Good.
>
> > With this, there is no error. But
> > I had succefuly compiled my application but the program hangs up, do
> > nothing.I have a breakpoint in main and open functions but the
> > application doesn't enter on it. I am using Redboot and Insight. Any
> > ideas?
> >
> > Thanks in advance
> >
> > My code: main() { struct termios newser1; fd1=open("/dev/ser1", O_RDWR |
> > IO_NOCTTY | O_NONBLOCK) ..... while(1) read(fd1,&data,1); ....... } My
> > eCos configuration: Posix, serial driver package
> > CYGPK_IO_SERIAL_TERMIOS0_DEV=/dev/ser0
> > CYGPK_IO_SERIAL_TERMIOS1_DEV=/dev/ser1
> >
> > CYGPG_IO_SERIAL_ARM_AT91_SERIAL0=enable
> > CYGPG_IO_SERIAL_ARM_AT91_SERIAL1=enable
>
> Are you also debugging on one of the serial ports? Given none of the AT91
> eval boards we have ports for include ethernet debug, then I imagine the
> answer is yes. If a port is being used for GDB traffic, you can't run a
> serial driver on it.
Yes I am using GDB (Insight) for debugging on serial Port A(ser0) but the AT91EB40A has other serial port B (ser1) and on this serial port i want to read bytes sent from a Host, the code is above described. But why doesn't my programm enter in main() function?
Is there information about ethernet debugging on the AT91EB40A?
>
> Oh, and out of interest, O_NOCTTY is ignored by eCos as eCos doesn't
> support all that Unix-y process control terminal stuff with process groups,
> controlling terminals, etc.etc. You can include it, but it doesn't do anything.
Thanks for this detail.
Ciao
>
> 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
>
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