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Mailing lists / fpc-pascal / 2006-07

RE: RS232 isr

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Anders Jansson

I am making a DOS program that uses RS232 at 115200 bps with XON/XOFF. There are some fairly simple public domain units for real mode. But in protected mode it seems very complicated. Has someone used Elecom? Could a real-mode ISR be used? Kind regards,
Anders

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Tomas Hajny
to Anders Jansson
Anders Jansson wrote
I am making a DOS program that uses RS232 at 115200 bps with XON/XOFF. There are some fairly simple public domain units for real mode. But in protected mode it seems very complicated. Has someone used Elecom? Could a real-mode ISR be used?

You could find examples of how to address
interfacing between the real-mode and protected
mode code in GO32v2 RTL sources (specifically,
unit mouse contains implementation of mouse
callback, which is a fairly similar issue).

Tomas

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