[Coco] NitrOS-9 Tools for the CoCoIOn Ethernet Card

rick ulland rickulland1 at gmail.com
Fri May 27 16:59:48 EDT 2022


Forget Jolt Cola, we drank 15 gallons of 'free' coffee last fest(true 
stat). Grab yer towel and come to Chicago 2023!

The pre-CoVID ‘CoCoIO’ had WizNet networking and 16550 serial in a 
ROMpak. The idea was the old Fast232 driver as a reason to buy while 
network code grew up. Well, that chip vanished in a hot minute one 
March. Not out of stock, just... gone. (It’s back 4/2022, quan=0 but 
that’s something)

So 2 years later we have network only, in two modes. Both based on the 
16K on chip buffer and one byte serial dataport. Raw mode is where Mikey 
is building a real network stack for drivewire et al. And then we have 
prefab TCP, which I am using to write a web browser in Basic09.

But this is all mem mapped to 'an CoCo' for anything beyond the basics. 
We don’t have the CPU ponies for encryption. No wifi, no SSL. Just an RJ 
jack on a rompak. I think that is the fun of this project.

-ricku


On 5/27/2022 1:42 PM, Allen Huffman via Coco wrote:
> On May 27, 2022, at 1:37 PM, Michael Furman via Coco <coco at maltedmedia.com> wrote:
>> You and your Jolt Cola were definitely missed at CoCo Fest, hope you are doing ok these days.
> Alas, Jolt Cola appears to have gone out of business again. It's just not the same!
>> The Computer Conect CoCoIOn is an Ethernet card for the CoCo using a WizNet W5100S chip.  This chip is also used on the Uthernet 2 card for Apple ][ computers as well as a bunch of others for other retro systems.  The chip is a lot higher level than CS8900 chips and is relatively easy to program for.
>>
>> The card is manufactured and sold by Rick Ulland of Computer Conect https://computerconect.com/
> Sweet. New CoNect hardware! How does it interface with the CoCo?
>
> I am familiar with WizNet, as they are the chips used in the Arduino Ethernet card, and at my day job we have two products we put wiznet on last year and had to write code for.
>
> Mine was based on the ESP8266 development boards ($4 for WiFi). One day I will learn how to solder and do electronics so I can make this stuff available.
>


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