[Coco] IP packets on my coco

[Zippster]

That sounds like a good way to go about it and keep things the same between the two,
but looking at the DE2 user manual schematics, they use a DM9000A and about 25 IO pins.

We wouldn’t have enough pins to replicate that interface unfortunately.  We could do just a transceiver
or a Ethernet controller with a serial interface like the ENC424J600 or similar..

- Ed


> On Jun 6, 2016, at 12:24 PM, Dave Philipsen <dave at davebiz.com> wrote:
> 
> Another thought:  The Terasic DE-2 board is very similar to the DE-1.  In fact, we do have a port of CoCo3FPGA on it.  One of the nice things about the DE-2 is that it has an onboard ethernet interface.  I currently have two DE-2s and another two are due to arrive this week.  Gary now has a DE-2 as well.  If nothing else, we could use the exact same circuit that is on the DE2 and replicate it on the expansion port of the analog board.  That way it would be easy to support TCP/IP on either the DE-1 or DE-2.
> 
> Dave
> 
> 
> On 6/6/2016 9:28 AM, Zippster wrote:
>> An Ethernet add on could be done with the expansion port option on the new
>> analog boards as well.  Or a multi-com port daughterboard of some kind, depending
>> on what would be most desirable.  We have eight GPIOs on the FPGA to work with
>> on the expansion port.  Just a thought.
>> 
>> - Ed
>> 
>> 
>>> On Jun 6, 2016, at 9:21 AM, Brett Gordon <beretta42 at gmail.com> wrote:
>>> 
>>> Oh right.  The analogue board will have an extra RS 232 port!  Is there an
>>> ethernet to serial adapter that speaks just ethernet or IP on the serial
>>> side?
>>> 
>>> Brett M Gordon
>>> On Jun 6, 2016 10:11 AM, "Mathieu Chouinard" <chouimat at gmail.com> wrote:
>>> 
>>>> this would be interesting
>>>> on the coco3fppga with the analog board ;)
>>>> 
>>>> On Mon, Jun 6, 2016 at 10:07 AM, Brett Gordon <beretta42 at gmail.com> wrote:
>>>>> If we have an actual IP/TCP stack:  Does this open new hardware
>>>>> opportunities?  I think the uIP stack will work with arp and ethernet
>>>> too.
>>>>> What would it take to get a cheapo ethernet transceiver hooked up?  I
>>>> guess
>>>>> maybe just a reliable interrupt capable rs232 is well enough?
>>>>> 
>>>>> Brett M Gordon
>>>>> 
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