Larger versions of the photographic masks of the circuit board can be had by clicking on the images below
The final result looks like this
Printing these on thick tracing paper produces usable results. Trough plating was done using 0.6mm rivets. The CS8900A was soldered with solder and ignoring the shorts. Going over the pins with desolder wick then produces a neat finish. The circuit can be found in the Technical Reference Manual of the CS8900A on the Cirrus Logic web site.
I am currently still working on the code
which is based and Gary's PIC code. So far it will respond to an ARP and
a ICMP PING and will also "fake" receive a UDP TFTP file. To compile the
code use TASM. TASM is a great compiler for many different processors,
it is available throughout the Net and it has the advantage of letting
you use macros.