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I am maintaining some control software that interfaces via RS232. It works perfectly using a real RS232 port (like motherboard connector) but generates masses of errors when connecting via a USB-RS232 adapter (for example the GUC232A from IOGEAR). I think it must be a timing issue, can anyone shed some light on what I might need to adjust ?
I added a virtual comm port (VSPE) into the mix and it works perfectly.... my code to VSPE ... VSPE to the USB-RS232 and the outside world.
Posted 10-Oct-12 12:28pm
cgb1431.4K
Edited 10-Oct-12 12:38pm
v2
Comments
Sergey Alexandrovich Kryukov at 10-Oct-12 17:29pm
   
I can only comment: this is a know issue; and it means that the adapter does not really adapt. Inadequate piece of hardware not working up to the spec.
--SA
cgb143 at 10-Oct-12 17:34pm
   
I had assumed as much, however I added a virtual comm port (VSPE) into the mix and it works perfectly.... my code to VSPE ... VSPE to the USB-RS232 and the outside world.
Sergey Alexandrovich Kryukov at 10-Oct-12 17:35pm
   
Hm. Interesting. You know something I don't... :-)
--SA

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