100 Hz data in Windows using RS 422 serial communication.

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Can I send a 100 Hz message (one message sent every 10 millisecond with 100 bytes of data) in WIndows Operating System using an RS 422 serial communication card without loss of even a single byte ?

I am sending a 100 Hz data with 100 bytes in Windows Operating System using a RS 422 serial communication card. I am using windows timer for sending it every 10 milliseconds. But data is lost in every cycle. I miss 5 to 10 bytes every cycle. Can anybody provide any solution in Windows for this problem ?

Posted 29-Sep-10 20:00pm

pipliyal

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krmed · Answer 1 · 2010-09-30T00:46:00

Solution 3

You might check my reply here[^].

Posted 30-Sep-10 0:46am

krmed

Cedric Moonen · Answer 2 · 2010-09-29T20:17:00

Solution 1

First, Windows is not a real time operating system, so you will never have an exact delay of 10 msec between two packets (it will be a little bit more).
Second, the amount of data you can send depends a lot on the baudrate you set on your serial port.

Posted 29-Sep-10 20:17pm

Cedric Moonen

CPallini · Answer 3 · 2010-09-30T00:23:00

Solution 2

No, you can't (as user space developer you can't).
:)

Posted 30-Sep-10 0:23am

CPallini