[En-Nut-Discussion] Ethernut2 w/realtek

[Matt Bell]

The packet whacker only has leads for the following pins to the realtek
chip

A[0-4]
INT0
D[0-7]
IOWB
IORB
JP
VDD
GND
RESET

NIC_EN is driven by the xilinx CPLD which has the same pinouts and
functionality as the one described on ethernut.de. SO Since there is no
enable pin on the packetwhacker i decided to OR the IOWB and IORB pins
with the NIC_EN as the chip select. Still having trouble getting it to
work, i get link on the switch but when i check the switches MAC address
table no MAC address shows up for the port. I'm using the
nut/app/httpd/httpserv.c as the test program. 

-Matt

On Mon, 2004-07-19 at 13:00, Harald Kipp wrote:
> Hi Matt,
> 
> At 15:38 18.07.2004 -0400, you wrote:
> 
> 
> >NIC_EN | WR                     -> IOWB
> >NIC_EN | RD                     -> IORB
> >
> >Since im only wiring address lines A[0-4] to the address bus and ORing
> >WR and RD with NIC_EN as the chip select, does anyone see any potential
> >reasons why a configuration like this might not work?
> 
> mh, may work. But it probably depends on how NIC_EN is
> generated. I assume, that also the Packet Whacker
> does provide a chip select. So why not connect this
> one to NIC_EN?
> 
> Harald
> 
> _______________________________________________
> En-Nut-Discussion mailing list
> En-Nut-Discussion at egnite.de
> http://www.egnite.de/mailman/listinfo.cgi/en-nut-discussion