[Gambas-user] Did anybody try to run stepper motors through paralel port

[Les Hardy]

Doriano Blengino wrote:
> Les Hardy ha scritto:
>   
>> Zelimir Ikovic wrote:
>>   
>>     
>>> I have VB6 program that run CNC plasma machine. It work very well and smooth under win200, but in WinXP machine motion is not good. 
>>>
>>> It doesnot help if I set REALTIME prority for the process ...
>>>
>>> How about Linux and Gambas? Daes it depent on version of Linux ...
>>>
>>> What is resolution for Gambas Timer? Can I wait 10 microsec do something wait 10 microsec and so on ...
>>>
>>> Regards
>>>     
>>>       
> Uhm... under linux, no matter what version, you can use the parallel 
> port and high resolution timers, but... 10 us? What is the speed of your 
> motor(s)?
> Anyway, I see it difficult to do it in gambas, mainly because of tight 
> GUI integration and impossibility to use interrupts; the best way would 
> be to separate hi-level logic from lo-level timing, perhaps through a 
> library written in C.
>
>   
Yes, I agree. I did a lot of work with parallel ports in the past, but I 
would not attempt a serious application for that job in Gambas.

Since I retired, I have been building my own hobby CNC machines, but I 
just use EMC2. It is GPL, and very efficient, so I figured I had no need 
to write my own app.

Les Hardy