[Coco] 16550 wasRe: RS232 paks

[Mark Marlette]

Willard,

Exactly my point. Zmodem by nature will re-xmit the loss but you can see that your effective baud rate goes in the tank.

Was this Zmodem xfer saved to a hard disk or floppy?

Regards,

Mark
Cloud-9


----- Original Message -----
From: "Willard Goosey" <goosey at virgo.sdc.org>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Thursday, March 5, 2009 6:44:15 PM GMT -06:00 US/Canada Central
Subject: Re: [Coco] 16550 wasRe:  RS232 paks

On Wed, Mar 04, 2009 at 08:12:44AM -0500, David Hazelton wrote:

> I have one built by Conect (IIRC)  Since when I bought it I only used 
> OS9, It worked great.  I did get better throughput then the RS-PAK.  I 
> did mostly Zmodem for file transfers, but I also logged in to VAX 
> machines and Unix based Machines at Work.  

I bet it did!  Zmodem likes uarts with fat FIFOs.  Under OS-9 with a
6551, I couldn't ever get error-free zmodem downloads faster than
4800. :-(

Willard
-- 
Willard Goosey  goosey at sdc.org
Socorro, New Mexico, USA
I search my heart and find Cimmeria, land of Darkness and the Night.
  -- R.E. Howard

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