[Coco] CoCo Ethernet for $25-$30...

[Frank Pittel]

On Mon, Apr 08, 2013 at 11:09:41PM -0500, Allen Huffman wrote:
> On Apr 8, 2013, at 5:49 PM, John Kent <jekent at optusnet.com.au> wrote:
> 
> > 
> > I use an XPort AR board to provide ethernet to RS232.
> > It's fairly expensive.
> > Having a Raspberry Pi configured to do the same thing would be a cheaper solution.
> 
> Or the $25 DB9-Ethernet Wiznet adapter.
> 
> > Many ethernet controllers though have internal buffers for receiving packets.
> > There are ethernet "shields" for the Arduino, so you could possibly use them as an RS232 to ethernet convters..
> 
> Wiznet is the chip in the official Arduino Ethernet shield.
> 
> > 
> > I see no reason why that can't use ethernet as a physical interface.
> 
> We need help here. My tinkering is just turning ethernet in to serial, so like dialup speeds. Fine for a computer that only existed during those days ;)
> 
> Boisy Pitre's experiment to hook Arduino IO pins to the CoCo bus is what we need. Have you read his webpage on this? Great stuff.

A lot of people are going to the wiznet chips for ethernet especially in the micro-controller world. A
couple of other links that are interesting:

http://www.parallax.com/Store/Microcontrollers/BASICStampModules/tabid/134/ProductID/898/List/1/Default.aspx?SortField=UnitCost,ProductName

http://www.parallax.com/Store/Accessories/CommunicationRF/tabid/161/CategoryID/36/List/0/SortField/0/catpageindex/2/Level/a/ProductID/753/Default.aspx

http://www.parallax.com/Store/Accessories/CommunicationRF/tabid/161/CategoryID/36/List/0/SortField/0/catpageindex/2/Level/a/ProductID/753/Default.aspx

http://www.parallax.com/Store/Accessories/CommunicationRF/tabid/161/CategoryID/36/List/0/SortField/0/catpageindex/2/Level/a/ProductID/638/Default.aspx


Most of these products will work fine with Arduino as well as Parallax micros. The Xbee stuff is interesting
since it allows for wireless serial at 115K!! There's an adaptor that allows one to be connected to a PC via
usb. Connect one to your computer via usb and another to the bitbanger on a coco!

The Other Frank

PS - I know I'm strongly in the Parallax camp but there's something about a micro available as a 40pin DIP
with 32 IO pins that has 8 independent cores (they call them cogs) each running at 80MHZ that I like.