mesa 5i25 and 7i76 stepgen and pwm

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23 Apr 2014 00:59 #46225 by absolut15
Hello.

I use a mesa 5i25 and two 7i76. And on the onboard lpd port i have a breakout board with two
Relaise and a DAC 0-10 Volt.

But i can't set up the pncconf to use the stepgen and on the lpd port a pwm signal.

Is this posible?

Nice greedings

Florian

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23 Apr 2014 09:27 #46231 by PCW
Not sure that pncconf can do this, so I suspect you will have to add the LPT HAL code by hand

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23 Apr 2014 11:43 #46237 by cmorley
Peter is right, PNCconf doesn't support pwm or stepgens on the parallel port.

Use pncconf to build a basic mesa config then add the parport code after.

Chris M

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23 Apr 2014 12:16 #46238 by absolut15
Thank you very much this helps me a lot. I have problems to add a vdf with an 0-10 Volt
Input. The mesa card is a lot smarter then me.
So i want to controller the Spindel in the lpd.

Perhaps on of you have an example code to add my Spindel on standart 376.... pin 16.

Thanks a lot and nice greedings Form austria.....

Florian

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23 Apr 2014 22:30 #46259 by andypugh

Thank you very much this helps me a lot. I have problems to add a vdf with an 0-10 Volt
Input


The 7i76 has a set of outputs specifially for driving a VFD. Why use a LPT board?

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24 Apr 2014 03:09 #46266 by absolut15
because i try a lot of things but i can get it to run with the analog spindel output from the mesa card....

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24 Apr 2014 04:40 #46271 by andypugh

because i try a lot of things but i can get it to run with the analog spindel output from the mesa card....


Do you mean that you can not get it to work with the spindle outputs?

Well, they do work, that is what they are for. Maybe it would be better to ask how to use them, and save yourself the trouble of using the LPT port (which will need you to add a base thread, amongst other things).

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