Timer on myRIO-1900

[ToanTranBK]

Hi,
I have a question that how do I know the Timing blocks (wait until next ms, wait, time count, ...) or other blocks related to Timer (Timed-Loop, ...) use the CLOCK SOURCE from the microcontroller (I use myRIO-1900) or my laptop (window).
Thank you.

[GerdW · Accepted solution]

Hi Toan,

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@ToanTranBK wrote:

how do I know the Timing blocks (wait until next ms, wait, time count, ...) or other blocks related to Timer (Timed-Loop, ...) use the CLOCK SOURCE from the microcontroller (I use myRIO-1900) or my laptop (window).

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The myRIO is a computer on its own and so it uses its own clock sources!

[Bob_Schor · Accepted solution]

Expandling on @GerdW's point, the myRIO runs the NI Linux Real-Time Operating System (definitely not Microsoft Windows) and is the Real-Time Target of a LabVIEW Real-Time application, with the PC acting as the "Host" computer, doing all of the interaction with the User through its Front Panel as the point where a (human) Operator can interact with Controls and Indicators on the Front Panel of the top-level VI.  The Host code is responsible for interacting with the Operator and with non-time-critical actions (such as reading and writing data to file systems), while the Target code, running on the Real-Time OS on the myRIO, are capable of precise (and accurate) timing measurement (including allowing true concurrent data processing through its FPGA running as a third processing component).

Bob Schor

[ToanTranBK]

Ohh, thank you so much 

[ToanTranBK]

Thank you for your helpful answer. I really appreciate it.