686 --> how to enable/disable transmit buffer on COM4 if COM4 is RS422/RS485!!! (SIO registers adresses have changed from 586) -- Support Forum for CompuLab's X86CORE & X86BASE Products

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Subject: 686 --> how to enable/disable transmit buffer on COM4 if COM4 is RS422/RS485!!! (SIO registers adresses have changed from 586)

Author:
Giovanni Pe�a
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Date Posted: 17:27:47 05/30/03 Fri

Hi !!!

I need some help to enable/disable COM4 transmit buffer
when COM4 is RS422/485!!!

I know how to do it on 586, there is an example on the
file "util-codeexamp.zip" from your page, but i want to
do it on 686 but the SIO registers adresses have changed!!!

Could you give mi an example?? or
have you a list of de new SIO registers adresses and their
definitions???

Thanks a lot!!!

Giovanni

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