[fpc-pascal] threads and serial port

[josepascual]

Hi everyone,

 

I have a program with several thread, I'm having a problem with serial port
due I need to send all the bytes (about 20 bytes/frame)

without delay. 

How can I do it? 

Can I set priority to thread which is sending byte to serial port to
highest? how?

Can I stop all thread but current during write in serial port?

Low Latency for serial port can help me? and how to active it in freepascal?

 

which is really curiously is I have made a very little program in c to send
bytes and It can do it well but in fpc I can not do it yet.

 

any suggestion is wel-come,

 

thank you in advanced,

 

Jose Pascual

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