B4J Question Timer 1uS

[YIM bunchhat]

Hello,

How can I create a timer 1uS? Normally timer in b4j is minimum 1mS

 

[Erel]

You cannot. Timer is not accurate enough for such a small interval.

 

[YIM bunchhat]

if I want to make, Is there an other way to generate interval less than 1mS?

 

[stevel05]

I don't know if it will be any use to you, but attached is a tiny one function library that just gets the System Nanotime.

From Oracle Docs:

static long nanoTime()
Returns the current value of the most precise available system timer, in nanoseconds.

I created it for use in an Android project, but never got round to using it. I would guess that system processing time would make it all but redundant, but it's here if you want to try it. It works on B4j.

Dim N As Nanotime
Log(N.NanoTime)

 

[YIM bunchhat]

@stevel05 , Thank you. I will test it. I want to use timer 1us because b4j could run on my Raspberry Pi. I want to use it control my Servo Motor which work with pulse between 1000us to 2000us.

 

[YIM bunchhat]

I don't know if it will be any use to you, but attached is a tiny one function library that just gets the System Nanotime.

From Oracle Docs:


I created it for use in an Android project, but never got round to using it. I would guess that system processing time would make it all but redundant, but it's here if you want to try it. It works on B4j.

Dim N As Nanotime
Log(N.NanoTime)

Hello after test I got this result = 12048400807360, what does it means?

 

[stevel05]

Have a look at the Oracle Docs:

https://docs.oracle.com/javase/1.5.0/docs/api/java/lang/System.html#nanoTime()