Problem- hal_parport.c

[krummigudna]

Hello every one.

I am new to EMC2 and i can not find any file named hal_parport.c or MAX_PORTS ( to define number of ports).
I have read that i can control 8 parallelports.
Can i configure those 8 ports in "stepconf" wizard ?
How do i get those ports upp and running ?

[acondit]

Originally Posted by krummigudna Hello every one. I am new to EMC2 and i can not find any file named hal_parport.c or MAX_PORTS ( to define number of ports). I have read that i can control 8 parallel ports. Can i configure those 8 ports in "stepconf" wizard ?

I am almost positive that the answer to the above question is no. Stepconfig is limited to assignments for one parport. You could use it as a starting point for the first port. What kind of machine are you thinking of that will require eight parallel ports?

How do i get those ports up and running ?

You will have to write (or modify) you own ".hal" file that will assign the pins and ports and it will need to contain a line like this that assigns all the port addresses and whether they are assigned non-default input or output functions:
loadrt hal_parport cfg="0x278 0x378 in 0x20A0 out"

Read the documentation on HAL and PARPORT in EMC_USER_MANUAL.pdf in particular chapters 6, 7, and 8.

Alan

[krummigudna]

Thank you for good answers Alan.

I will only be using 2 or 3 ports for HALUI on a lathe.

If i understand you right, i dont have to define MAX_PORTS in
hal_parport.c mentioned in the documents ?

KRUMMI

[SWPadnos]

Originally Posted by krummigudna Thank you for good answers Alan. I will only be using 2 or 3 ports for HALUI on a lathe. If i understand you right, i dont have to define MAX_PORTS in hal_parport.c mentioned in the documents ? KRUMMI

No, you don't have to change the source code, unless you need more than the 8 ports allowed by default.

The code as it is allows you to use from 0 to 8 ports.

- Steve

[krummigudna]

OK now i get it.

Of course, thats the source code.
Now the clouds are not as thick in my head.

Thank you Steve

KRUMMI