How to display the value of the int variable from the hal_parport.c file in the

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3 years 1 month ago #279946 by drzasiek90
How to display the value of the int variable from the hal_parport.c file in the was created by drzasiek90
Hi, I'm compiling my own version of LinuxCNC and making some changes to the
Code:
hal_parport.c
file. I would like to be able to display the value of a variable in the Axis panel in a way similar to how spindle speed is displayed using a HAL pin. Can someone guide me on how to achieve this?

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3 years 1 month ago #279960 by Cant do this anymore bye all
Replied by Cant do this anymore bye all on topic How to display the value of the int variable from the hal_parport.c file in the
You may want to elaborate a little more.
What variable ?
Where is coming from ?

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3 years 1 month ago #279979 by andypugh
Replied by andypugh on topic How to display the value of the int variable from the hal_parport.c file in the
Maybe create a new HAL pin or parameter and set the value of it inside your new comp.

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3 years 1 month ago #280054 by drzasiek90
Replied by drzasiek90 on topic How to display the value of the int variable from the hal_parport.c file in the
I create a global variable in the source file that takes certain values in certain situations. I compile linuxcnc and run. I would like to be able to view the value of this variable while the program is running.

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3 years 1 month ago #280067 by andypugh
Replied by andypugh on topic How to display the value of the int variable from the hal_parport.c file in the
Create your variable in the HAL structure and assign it to a parameter (you can copy the structure of the other pins / params)
Then you can use the existing HAL tools to monitor the value, including displaying it in GUIs.

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3 years 1 month ago #280078 by drzasiek90
Replied by drzasiek90 on topic How to display the value of the int variable from the hal_parport.c file in the
No, I've already done it.
I am able to view the parameter in tools.
However, I would like to display this value permanently, but using pycvp it is probably not possible - so far I have not succeeded.
Using pyvcp I am successfully displaying the hal pins but the hal parameters are not working.

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3 years 1 month ago #280081 by Cant do this anymore bye all
Replied by Cant do this anymore bye all on topic How to display the value of the int variable from the hal_parport.c file in the
Oh ok, you want to modify Axis to display the value ?

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3 years 1 month ago #280083 by andypugh
Replied by andypugh on topic How to display the value of the int variable from the hal_parport.c file in the

Using pyvcp I am successfully displaying the hal pins but the hal parameters are not working.
PyVCP can only display items that can be "net"-ed to the PyVCP pins in HAL. So you will need to create the variable as a pin, not as a parameter. 
(Which means that it needs to be part of the hal_malloc data and needs to be a pointer to a pointer) 
 

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3 years 1 month ago #280084 by drzasiek90
Replied by drzasiek90 on topic How to display the value of the int variable from the hal_parport.c file in the
If necessary.
However, I'd prefer to do without modification by adding a panel via pyvcp.
I am looking for a simple method so that it is easy to replicate.

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