Cort Dougan wrote:

> How minimal of a linux system are you looking at?

I guess that's one of the things I'm trying to find out.  The more there is,
the
more we have to port and maintain.  All that's needed is enough OS to
simultaneously support TCP/IP applications and real-time applications.  The
real-time applications would communicate with the TCP applications using
the RT-FIFOs; the TCP applications would communicate with the outside
world.  It would be nice to have remote GDB debugging facilities (via
existing
Ethernet or a serial line).  If that is not available, we can use JTAG/COP
into
the PowerPC processor.

I suppose to have the TCP stack, the networking daemons and a Flash file
system are also required?

It sounds like most RTL implementations are full-Linux over the real-time
kernel, so far.  (We're currently using VxWorks for embedded real-time
stuff.)

Mark

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