Increase the performance
of your real-time controller by using line interrupt
Most NI Real-Time targets offer three
options for packet detection: Line Interrupt, Polling, and Message Signal Interrupt. Line
Interrupt provides the fastest performance as the device driver gets immediately notified when
the target receives data.
introduces the most jitter of the options.
Open NI MAX.
In the Packet Detection setting of the controller, select
If Line Interrupt is not available, select
Polling and change the Polling Interval
to 1 millisecond. Polling at a high rate provides high performance while introducing
less jitter than interrupt, but increases CPU utilization.