[Coco] RS DOS RS232 application?

[Gene Heskett]

On Thursday 14 April 2016 19:58:35 RETRO Innovations wrote:

> I would like to test out a mod to my RS232 pak to bring it up to
> 230kbps.  Is there a simple app around that has source so I can modify
> it to do 230kbps on my rs232 pak and test?  Or, alternatively, is
> there a simple terminal that I can run to test out the various 
> existing bps rates?
>
>
> Jim

Unless you have huge buffers, big enough to contain the whole 
transmission, the coco cannot move more than about 90k a second.  That 
corresponds to the megaread times I was able to get from myram, of 11 
seconds for a megabyte on a 6309, and just over 13 seconds on a 6809, 
each using the fastest way to move data that exists on those 2 
processors. For the 6809, thats (after the transfer is setup) ldd,x++; 
std, y++, or for the 6309, ldq ,x++;stq ,y++ (IIRC).
> --
> RETRO Innovations, Contemporary Gear for Classic Systems
> www.go4retro.com
> store.go4retro.com


Cheers, Gene Heskett
-- 
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