Jeff Wormsley schrieb:
If you really need to go that route, with full access to 100% of the
UART, perhaps this book would help (chapter 6 is on serial device
drivers).
*http://tinyurl.com/yjk4c9j*
I'll follow your link.
Just know that you will have to do that part of your application in C
as a device driver, not with FPC. FPC does not, and cannot, override
the base operating system restrictions regarding port access.
Expecting it to do so just because TP under DOS would let you do that
won't make it happen, either.
I don't understand a programming language as a tool to override an
operating system. This is not my goal. I ask for some clues to deal with
ports and UART devices already connected to a computer.
And insulting comments like "Under the bottom line, it is embarrassing
time consuming for a newbie like me, to work successfully with serial
ports on linux." directed to the FPC list won't change that either.
I don't understand this quote as insulting. A newbie on programming
languages must learn how to write working code. This is always time
consuming even on computers with less restrictions. Thanks to Marc
Santhoff, I have got working sample code to use the serial unit
successfully. But I need to mention, the comments on procedures in this
unit are not error free. Despite to these comments the procedure
"seropen" returns -1, if a serial port cannot be found, and not zero.
My small selfwritten functions on serial ports are working now.
Holger
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