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