mesa 5i25 and 7i76 stepgen and pwm

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23 Apr 2014 00:59 #46225 by absolut15
mesa 5i25 and 7i76 stepgen and pwm was created 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
Replied by PCW on topic mesa 5i25 and 7i76 stepgen and pwm
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
Replied by cmorley on topic mesa 5i25 and 7i76 stepgen and pwm
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
Replied by absolut15 on topic mesa 5i25 and 7i76 stepgen and pwm
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
Replied by andypugh on topic mesa 5i25 and 7i76 stepgen and pwm

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
Replied by absolut15 on topic mesa 5i25 and 7i76 stepgen and pwm
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
Replied by andypugh on topic mesa 5i25 and 7i76 stepgen and pwm

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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