help writing code

Michael Johnson mpjohnso at nyx.cs.du.edu
Wed Oct 27 09:12:54 PDT 1993


...
> the SMTP/POP protocols. But I can't get Windows to talk reliably with a
> raw async link. (I don't want to require SLIP or PPP, as lots of sites
> are too clueless to offer it.)
> 
> I need a robust communications library. It has to do as well as possible
> given an inherantly inreliable link. I've bought three commercial sibraries,
> and none work.
...
The only way to communicate reliably over the serial port in Windows is 
to upgrade the UART in your serial port to a 16550AFN or equivalent. The 
standard UART (16450 in AT class machines) has no buffer and suffers from 
frequent dropouts due to data overwrite on receive. If you can't do that, 
then an error correcting protocol such as SLIP or PPP is required.

                                   Mike Johnson
                                   mpj at csn.org






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