RE: Serial VS Diagnostic interface

["Chris Zimman" <czimman at bloomberg dot com>]

> I am working with eCos on an AT91 platform for several month now, and
> I have always used the serial port as a diagnostic interface for
> debugging purpose. However, now I need to use it as a standard serial
> in order to be able to use the O_NONBLOCK flag but I couldn't find a
> way to use the 16x55 serial driver instead of the haldiag interface:
> whatever I do, only the haldiag interface is selected, and removing
> the haldiag seems to make it impossible to compile.
> 
> I know I can use the solution consisting in replacing the GETC
> function with a nonblocking one, and patching whatever function may
> need blocking calls on it, but I can't imagine there is no way in eCos
> to select whether my only serial port shall be considered as a
> diagnostic interface or a _real_ serial port.
> 
> Any clue will be welcome.

Make sure you have the hardware serial port drivers compiled in.  With that
you can use "/dev/ser0" etc. instead of "/dev/haldiag" and use non-blocking
interfaces.

--Chris