[Coco] RS232 Pak needed

[Retro Canada]

we use DW through the parallel on dragon. we just need an inverter.

On 2013-09-19, at 7:54 PM, Al Hartman <alhartman6 at optonline.net> wrote:

There are no equivalent chips?

There's no way to implement a Serial Interface on a Coco without a 6551?

Why not then make a Parallel Interface? Laplink on the PC worked over bi-directional Parallel Ports.

Why not simply make a Parallel Port adapter, and then use a USB to Parallel adapter on the Server end, and re-write Drivewire to also use a Parallel port if available and chosen by the user?

A Dragon already has a Parallel Port, is it bi-directional?

-[ Al ]-

-----Original Message----- From: Brian Blake

6551's are getting pretty difficult to come by.  I did quite a bit of
testing of different 6551's for Roger a few years ago and had to scour the
Internet pretty hard just to find the ones I have.
On Sep 19, 2013 7:25 PM, "Al Hartman" <alhartman6 at optonline.net> wrote:

> Aren't the 6551s being made any more? I see auctions for the chip on
> eBay...
> 
> Couldn't someone implement the functionality in an FPGA or something?
> 
> -[ Al ]-


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