Re: [ECOS] Serial Port Configuration

[Jonathan Larmour <jifl at eCosCentric dot com>]

Ali Rodgo wrote:
> > > 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?

What it means is that you shouldn't install a driver on ser0 because you 
are using that port for GDB. Only install one on ser1. Did you enable 
CYGPKG_IO_SERIAL_DEVICES by the way? And CYGPKG_IO_SERIAL_TERMIOS?

> Is there information about ethernet debugging on the AT91EB40A? 

The EB40A doesn't have ethernet (which was my point :-)).

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