integrating sensoray pci card with linuxcnc
20 May 2015 12:46 #58883
by fit2cnc
Not limited to that card, since I got this card with me, I want to try what I can before moving to alternative as I am aware there are alternative out there.
I know that this would be a challenging task but I am willing to face it, but at the moment I can't seem to progress any further cos I am not sure how to get linuxcnc to sent signal back and forth with this card.
Here's a S826 card Technical Manual can be found on this link: www.sensoray.com/downloads/man_826_hw_3.0.5.pdf
I was worried that it would be difficult task to write a HAL driver.
Where do I start looking into writing HAL driver for this card?
Replied by fit2cnc on topic integrating sensoray pci card with linuxcnc
Do you absolutely have to use the Sensoray card? There are other options for +/- 10V output that already work.
Not limited to that card, since I got this card with me, I want to try what I can before moving to alternative as I am aware there are alternative out there.
I know that this would be a challenging task but I am willing to face it, but at the moment I can't seem to progress any further cos I am not sure how to get linuxcnc to sent signal back and forth with this card.
Do you have any documentation for the card or the driver? It can often be surprisingly easy to write a new HAL driver.
Here's a S826 card Technical Manual can be found on this link: www.sensoray.com/downloads/man_826_hw_3.0.5.pdf
I was worried that it would be difficult task to write a HAL driver.
Where do I start looking into writing HAL driver for this card?
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20 May 2015 16:15 #58888
by andypugh
The manual you just posted looks like a good start.
The documentation for the hal component generator is here:
linuxcnc.org/docs/html/hal/comp.html
It might be called halcompile on your system, we changed the name.
A HAL driver written in .comp might look a bit like this.
This is very minimalist, and probably won't work, but shows the basics and might be a basis for elaboration (value checking, more setup, add the DIO, support for boards other than board 0, handle error returns, etc etc.
It is probably worth a try just to see what happens.
Replied by andypugh on topic integrating sensoray pci card with linuxcnc
Where do I start looking into writing HAL driver for this card?
The manual you just posted looks like a good start.
The documentation for the hal component generator is here:
linuxcnc.org/docs/html/hal/comp.html
It might be called halcompile on your system, we changed the name.
A HAL driver written in .comp might look a bit like this.
component senso826 "A driver fo the Sensoray 826 board";
description "Only does analog out at the moment";
pin in float analogout-#[8] ;
option extra_setup yes;
option extra_cleanup yes;
function _;
license "GPL";
;;
// This might need the explicit path to the file
#include 826api.h
FUNCTION(_){
int i;
int ret;
u16 v; /
for (i =0 ; i <8 ; i++){
v = (analogout(i) + 10) *3276.8
ret = S826_DacDataWrite(0, i, v, 0);
}
EXTRA_SETUP(){
S826_SystemOpen();
}
EXTRA_CLEANUP(){
S826_SystemClose();
}
This is very minimalist, and probably won't work, but shows the basics and might be a basis for elaboration (value checking, more setup, add the DIO, support for boards other than board 0, handle error returns, etc etc.
It is probably worth a try just to see what happens.
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