Formula as HAL parameter

Hello...

Is it possible to use formula in HAL parameter?
For example in my HAL is lineand this works OK.
But what about something likeas stepgen acceleration should be 1.5 to 2 times of max acceleration?

Thanks

AFAIK you cannot assign a value based upon the result of a mathmatical operation in a hal file

You don't need to, because if the variable does not exist, you can just create it in your .ini file and assign it by [SECTION]Name

The only ways to use the ini file variables I can think of are

value = [SECTION]Value as in setp device.0.param [SECTION]Value

string = [SECTION](Name) as in loadrt [SECTION](NameToLoad)

I have never seen documentation for this, would be interested if there was some

regards

I just asking as I'd like to avoid cnahging numbers in two files.
acceleration and max speed are that. And (I don't know why) max speed in stepgen must be higher than declared speed for axis. If backlash is used up to two times higher?!?
So when machine is configured and finding optimal values we must align two numbers in different file to be in sync (but not same).
I still don't get why I have max velocity declared in at least 3 places?!?

And (I don't know why) max speed in stepgen must be higher than declared speed for axis.

The stepgen maxvel (and stepgen maxaccel) must be set higher than the machine
maxvel and maxaccel since the stepgen must have headroom (the +25% or so)
to be able to do corrections when at the maximum machine velocity or acceleration