[Coco] Ethernet Port Cartridge for the Coco 3

Mark Ormond markormond at mtxsystems.com
Sun Feb 3 14:29:03 EST 2013


That's the same chip used in the arduino Ethernet shield, really easy to setup and with it being in a arduino lib, easy to look at working source code.

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On Behalf Of Aaron Wolfe
Sent: Sunday, February 03, 2013 2:00 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] Ethernet Port Cartridge for the Coco 3

Implementing UDP is nearly as difficult as TCP, well probably 90% or so..  You still need the same underlying stack and whatnot.

I think a good approach would be to use something like this:

https://www.sparkfun.com/products/9471?

Cheap, and it provides a decent TCP/IP stack in hardware and connects to the ethernet/wifi interface.  So you'd just have to communicate between coco and the tcp controller at a high level.

-Aaron



On Sun, Feb 3, 2013 at 11:56 AM, Robert Hermanek <rhermanek at centurytel.net> wrote:
> You know, whenever this subject comes up, I agree that implementing 
> TCP would be impossible.  But if the ethernet hardware was possible, 
> why not just implement UDP instead?  If I had a udp-only ethernet 
> catridge plugged into my coco3 I'd be one happy guy.
>
> -RobertH
>
> On 1/26/2013 9:04 PM, Aaron Wolfe wrote:
>>
>> I've never seen ethernet for a coco.  At the fest I've seen what 
>> looked like a prototype ARCnet interface (10base2) but the word there 
>> was that nobody is exactly sure what it implements.
>>
>> Getting an ethernet port wired up to a coco would be challenging.
>> Actually doing anything with it would be much more so, since there 
>> isn't any software (yet).  I've approached a few different 'hardware 
>> guys' about putting together an ethernet interface + one of the 
>> small/cheap TCP/IP stacks on a chip, since that would at least get us 
>> something new applications could use without first having to write a 
>> low level networking stack.  Nobody has done much along those lines 
>> yet that I know of.
>>
>>
>>
>> On Sat, Jan 26, 2013 at 9:39 PM, Kip Koon <computerdoc at sc.rr.com> wrote:
>>>
>>> Hey You Guys,
>>>
>>> I remember seeing an Ethernet port cartridge for the coco, but I 
>>> don't remember where.  Does anyone have any recollection of an 
>>> Ethernet port being created as a cartridge or as an add-on to one of 
>>> the other multi-purpose paks.  For instance, I have a Disto Super 
>>> Controller that has some pins sticking out the side which I never 
>>> ended up using for anything.  It has eight addresses available for 
>>> anything.  Is there anyone who has some of Tony's old add-ons he 
>>> developed for his multi-purpose cartridges?  If so, I'd like to see 
>>> if something catches my eye.  Thanks guys.
>>>
>>> Kip
>>>
>>>
>>>
>>>
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>>
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>
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