How Do I Set Interbyte Timing After Sending Bytes Of Data Serially?

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I am sending data serially across the device from COM port to USB, and i need to implement interbyte timing? Could anyone explain me how can this be implemented?

Posted 2-Apr-15 0:04am

vinod b v

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OriginalGriff · Accepted Answer · 2015-04-02T00:25:00

That's complicated - because the Serial port class is buffered by Windows, the serial port itself is (normally) buffered by it's driver, and the hardware generally has a couple of bytes worth of buffer in it as well. And to make life even more complicated, the serial output stream is effectively buffered because the data (and it's associated start, stop, and parity bits) is output one bit at a time, providing another layer of buffering.

You can do it on a macro scale - using a timer of some form so that you can only load the SerialPort instance with "n bytes per second" - but it's clumsy.
And you can do it on a micro scale by altering the number of stop bits (1, 1.5 or 2) which will add a small amount of "per character" delay - but you can't add a lot that way.

What exactly are you trying to get?