Netdemo examples Working on i386

[Bill Butler]

All,

I thought I would update everyone that I have the netdemo working with
the i386/pc486 bsp.

I moved to the latest snapshot (20020301) and updated my tools. Now the
demo complained about a NE2000 timeout. After some more searching I
discovered this was because I had the wrong IRQ on the NIC card. 

I could not really find any utilities I thought I was stuck. Luckily,
Win95 was installed on this 486 machine I was using and when I tried to
install the nic card It showed me the setting (irq3,0x300). Changing
this got me up and running.

So in summary, if you want to used a ne2000 nic card with netdemo you
need to 

1)  Set to your card type in bsp.h. All supported cards are listed now

#define BSP_NE2000_NETWORK_DRIVER_NAME  
#define BSP_NE2000_NETWORK_DRIVER_ATTACH

2) Add number of File handle to something more reasonable in init.c

#define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS (30)

3) Set your IRQ on your nic card to 5 or modify the netdriver_config
structure in netconfigure.h for the demo code the following to the

static struct rtems_bsdnet_ifconfig netdriver_config = {
   RTEMS_BSP_NETWORK_DRIVER_NAME,      /* name */
   RTEMS_BSP_NETWORK_DRIVER_ATTACH, /* attach function */

#ifdef RTEMS_USE_LOOPBACK 
   &loopback_config,    /* link to next interface */
#else
   NULL,          /* No more interfaces */
#endif

#if (defined (RTEMS_USE_BOOTP))
   NULL,          /* BOOTP supplies IP address */
   NULL,          /* BOOTP supplies IP net mask */
#else
   "192.168.1.26",      /* IP address */
   "255.255.255.0",     /* IP net mask */
#endif /* !RTEMS_USE_BOOTP */

#if (defined (RTEMS_SET_ETHERNET_ADDRESS))
   ethernet_address,               /* Ethernet hardware address */
#else
   NULL,                           /* Driver supplies hardware address
*/
#endif
/* configure the IRQ in this section 0 = default*/
   0,           /* ignore_broadcast */
   0,           /* mtu */
   0,           /* rbuf_count */
   0,           /* xbuf_count*/

   0,           /* port use default of 0x300 */
   3,           /* irno */
   0,           /* bpar*/

};

Hope that helps

PS. I believe that the 4.5.0 version would have worked fine if I had the
IRQ set correctly. It's just that the newer version of the driver gave
an error message that Interrupts weren't working! 

Bill Butler
AIPCom Inc
972-644-2328 x16
bbill at tnex.com
 

> -----Original Message-----
> From: Bill Butler [mailto:billb at tnex.com]
> Sent: Monday, April 22, 2002 10:05 AM
> To: 'Eric Norum'
> Cc: 'rtems-users at oarcorp.com'
> Subject: RE: Netdemo examples.
> 
> 
> 
> 
> > From: Eric Norum [mailto:eric.norum at usask.ca]
> 
> 
> > On Monday, April 22, 2002, at 08:06 AM, Bill Butler wrote:
> >
> > > I bet this has been answered before but I still can not get the
rtems
> > > search to work and have searched back to last april with now
luck..
> > >
> > > I have the Netdemo4-5.0/netdemo up and working for the most part
on a
> > > i386/PC486 BSP. I using the 4.5.0 release (no snapshots).  I can
get
> the
> > > demo to come up and request and receive an IP using BOOTP when in
> BootP
> > > mode. It displays no errors and is able to create, bind, listen,
> accept
> > > sockets.
> > > The "u" test seems to work but "t" or tcp/ip test times out --
Giving
> > > "Can't connect socket: Connection timed out".
> > >
> > > I have also tried to hardcode its IP with the same results.
> >
> > Is the TCP`discard' socket active on the machine you're trying to
> > connect to from the RTEMS machine?
> 
> Unsure.. I need to look into this since I'm not really familiar with
> Discard socket. I have tried both uncommenting the 127.0.0.0 and
setting
> it to the machine I'm trying to use telnet on. (ie 192.168.1.11- my
linux
> box)
> 
> 
> 
> >
> > >
> > > Trying to ping the pc running Rtems/netdemo times out and trying
to
> > > connect using telnet 192.168.1.16 24742 does not work as
advertised.
> > >
> > > To me this sounds like a TCP/IP problem more than the demo problem
and
> I
> > > am hesitant to move on with development until I get this demo
working.
> >
> > Is the RTEMS machine configured to accept broadcast packets?
> > Can you run a packet sniffer and see exactly what's happening on
your
> > network?
> 
> 
> I have not changed anything on the demo except to enable BootP and add
> more files handles. When I use the sniffer It does not look to me that
the
> Rtems box tries to except the telnet session. But I need to look into
this
> more but I really thought the netDemo should work pretty much as is.
> 
> Thanks
> 
> Bill