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From: alawlor@dit.ie (Aengus Lawlor)
Newsgroups: comp.dcom.lans,alt.msdos.programmer
Subject: Ethernet addresses from different brands of card
Message-ID: <5423.2572acc6@dit.ie>
Date: 28 Nov 89 16:05:26 GMT
Organization: Dublin Institute of Technology
Lines: 49

The following program from PC Magazine of July 1988 will print the
12 digit ethernet address of a 3COM 3C501 Ethernet card.
It doesn't work for my Western Digital WD8003Es, or D-Link DE-001s 
(NE-1000 clones).

The 3C501 uses IRQ 3, I/O base address 300H, and DMA channel 1.
The D-Link uses IRQ 3,I/O base address 300H, and no DMA, with a Base Memory
address of D0000H.
The WD8003E uses IRQ 3, I/O base address 280H, and no DMA, with a Ram Buffer
I/O Base address of C4000H.

These are the factory default settings of the cards.
Can anyone tell me exactly what this program does, and what I need to change to
make it work for all three cards?.

In a similiar vein, our primary Network is a 3Com. The drivers for each card
are loaded as devices in the CONFIG.SYS file. Is there any way of making
a universal boot floppy, that would load the correct driver for the card?

Any suggestions appreciated.

Aengus.
                                         

/* from PCMAG july 88 */
#include "stdio.h"

#define L_GETEAR 6                       /* bytes in binary E/N address     */
#define L_EA     (2 * (L_GETEAR + 1))    /* size of ASCII E/N address       */
#define IE_GP    8                       /* xmit, station addr PROM pointer */
#define IE_SA    12                      /* station address prom window     */
#define EA_BASE  0x300                   /* Ethernet adapter base address   */

main ()
     {
     int i, byte, base = EA_BASE;        /* 3c501 adapter I/O base address  */

     for (i=0; i<L_GETEAR; i++)
         {
         outport (base + IE_GP, i);      /* point to E/N address byte       */
         byte = inportb (base + IE_SA);  /* fetch address byte              */
         printf ("%02x", byte & 0xff);
         }
     printf("\n");
     }

Aengus Lawlor                 Dept of Computer Science, College of Technology
                              Kevin St, Dublin 8.   Ireland.
           Time flies like an Arrow, Fruit flies like a banana.