4 Feb
2008
4 Feb
'08
9:50 a.m.
On 29/01/2008, Jim Brain <brain at jbrain.com> wrote:
Sellam wants to finish the 64 c64 cluster for the next
VCF. I've been
researching ideas for communicating among the machines, and the best
ideas point to using the two synchronous serial ports on the user port
(low wire count, transfers at 250kbps).
But, I have grawn a complete blank on plans for a true peer to peer
(token based or otherwise) networking protocol. Everything I see is
master/slave. RS485 material talks about the hardware layer, but there
is no detail on the protocol layer.
I would think this would be a well researched and innovated area, low
speed communication without a master node. Anyone have any pointers for
things to look into?
This is probably not, by the sound of it, the sort of thing you're
after, but there are Ethernet interfaces for the C64 now...
http://www.dunkels.com/adam/tfe/
The Final Ethernet - C64 Ethernet Cartridge
Quote:
[[
The possibility of connecting the Commodore 64 to an Ethernet local
area network has been a collective dream in the Commodore community
for decades. A C64 Ethernet adapter would make it possible to connect
the C64 directly to the Internet, making it possible to download
software, transfer data to and from the C64, play network games over
the Internet; the possibilities are endless.
With our TFE cartridge (The Final Ethernet cartridge) this is now possible.
TFE - The Final Ethernet
The TFE cartridge is designed around Systor Vest AS' CS8900a-based
Embedded Ethernet board. The board is mounted on a circuit board which
contains a single 74LS139 chip that constitutes the glue logic between
the C64 and the Ethernet chip. More information including the full
schematics and pictures of the hardware can be found here.
]]
Since it's by Adam Dunkels, I'd guess it runs under his
ultra-ultra-lightweight multitasking OS for 8-bitters, Contiki.
http://www.sics.se/contiki/
--
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