This is the mail archive of the
ecos-discuss@sources.redhat.com
mailing list for the eCos project.
Re: Serial Port Configuration
- From: Jonathan Larmour <jifl at eCosCentric dot com>
- To: Ali Rodgo <alirodgo at web dot de>
- Cc: ecos-discuss at ecos dot sourceware dot org
- Date: Wed, 18 Feb 2004 06:56:52 +0000
- Subject: Re: [ECOS] Serial Port Configuration
- References: <200402171046.i1HAkaQ05940@mailgate5.cinetic.de>
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.
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.
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