TTL (PWM) Laser head and Mesa 7i76
11 Feb 2022 22:40 #234618
by PCW
Replied by PCW on topic TTL (PWM) Laser head and Mesa 7i76
Also the readhmid output shows the original firmware (5i25_7i76x2)
The following user(s) said Thank You: RoberCNC
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12 Feb 2022 08:03 - 12 Feb 2022 12:07 #234630
by RoberCNC
Replied by RoberCNC on topic TTL (PWM) Laser head and Mesa 7i76
Now I think everything is correct, the configuration I had is operational again and the --readhmid returns this file to me.
How do I identify the output pins of the StepGen and PWM on the Chinese card? I mean, the Step5+, Step5-, Dir5+, Dir5- for example
How do I identify the output pins of the StepGen and PWM on the Chinese card? I mean, the Step5+, Step5-, Dir5+, Dir5- for example
Last edit: 12 Feb 2022 12:07 by RoberCNC.
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25 Sep 2023 19:12 - 25 Sep 2023 19:18 #281606
by swepeter
Replied by swepeter on topic TTL (PWM) Laser head and Mesa 7i76
Hi
I am running a Mesa 7i96 where I have used all 5 stepper outputs and also would like to add a PWM laser control.
Would any of these cards do it?
pchbutik.se/en/nytt-pa-lager/869-upgrade...motor-driver-ma.html
www.amazon.se/DollaTek-5-axlad-brytbr%C3...a-864980539885&psc=1
www.amazon.se/Stepper-Driver-Switch-Inte...d_i=B07QFRC2GN&psc=1
Thank you so much for an answer.
I am running a Mesa 7i96 where I have used all 5 stepper outputs and also would like to add a PWM laser control.
Would any of these cards do it?
pchbutik.se/en/nytt-pa-lager/869-upgrade...motor-driver-ma.html
www.amazon.se/DollaTek-5-axlad-brytbr%C3...a-864980539885&psc=1
www.amazon.se/Stepper-Driver-Switch-Inte...d_i=B07QFRC2GN&psc=1
Thank you so much for an answer.
Last edit: 25 Sep 2023 19:18 by swepeter.
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25 Sep 2023 19:54 #281612
by PCW
Replied by PCW on topic TTL (PWM) Laser head and Mesa 7i76
If used to buffer a PWM output from P1, probably any would do
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26 Sep 2023 05:56 - 26 Sep 2023 11:23 #281634
by swepeter
Replied by swepeter on topic TTL (PWM) Laser head and Mesa 7i76
Thanks for the quick response.
Would I need to re flash the FW on the breakout board as you talked about before?
in that case how do I go about that.
Or what do I need to add in my hal file?
Sorry have not worked with the hal file in some years.
This is the kind of cable right?
www.dustinhome.se/product/5010742284/par...tw-jUURoCS-wQAvD_BwE
www.amazon.se/StarTech-com-Profile-slott...+%2Caps%2C100&sr=8-3
Kind Regards
/Peter
Would I need to re flash the FW on the breakout board as you talked about before?
in that case how do I go about that.
Or what do I need to add in my hal file?
Sorry have not worked with the hal file in some years.
This is the kind of cable right?
www.dustinhome.se/product/5010742284/par...tw-jUURoCS-wQAvD_BwE
www.amazon.se/StarTech-com-Profile-slott...+%2Caps%2C100&sr=8-3
Kind Regards
/Peter
Last edit: 26 Sep 2023 11:23 by swepeter.
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26 Sep 2023 14:45 #281652
by PCW
Replied by PCW on topic TTL (PWM) Laser head and Mesa 7i76
7I96 (NOT 7I96S) configuration with 1 PWM
output on DB25 pin 2
To update your firmware, you would
mesaflash --device 7i96 --addr [card_ip_address] --write 7i96_p1pd.bit --reload
Those cables look correct
I believe there is a thread on laser PWM that may help with the hal setup
output on DB25 pin 2
To update your firmware, you would
mesaflash --device 7i96 --addr [card_ip_address] --write 7i96_p1pd.bit --reload
Those cables look correct
I believe there is a thread on laser PWM that may help with the hal setup
Attachments:
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26 Sep 2023 15:02 #281653
by swepeter
Replied by swepeter on topic TTL (PWM) Laser head and Mesa 7i76
Thank you so much!
Found the thread: forum.linuxcnc.org/10-advanced-configura...m67-and-m68?start=10
If someone stumbles on this some time.
I did end up ordering the amazon card.
Found the thread: forum.linuxcnc.org/10-advanced-configura...m67-and-m68?start=10
If someone stumbles on this some time.
I did end up ordering the amazon card.
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26 Sep 2023 15:06 - 26 Sep 2023 15:07 #281655
by swepeter
Replied by swepeter on topic TTL (PWM) Laser head and Mesa 7i76
Will this be correct for me also:
#LASER
# loadrt pwmgen output_type=0
addf pwmgen.make-pulses base-thread
addf pwmgen.update servo-thread
setp pwmgen.0.enable TRUE
net analogout motion.analog-out-00 => pwmgen.0.value
net laserpwm pwmgen.0.pwm => parport.0.pin-01-out
but with parport.0.pin-02-out
#LASER
# loadrt pwmgen output_type=0
addf pwmgen.make-pulses base-thread
addf pwmgen.update servo-thread
setp pwmgen.0.enable TRUE
net analogout motion.analog-out-00 => pwmgen.0.value
net laserpwm pwmgen.0.pwm => parport.0.pin-01-out
but with parport.0.pin-02-out
Last edit: 26 Sep 2023 15:07 by swepeter.
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26 Sep 2023 19:55 - 26 Sep 2023 19:57 #281661
by PCW
Replied by PCW on topic TTL (PWM) Laser head and Mesa 7i76
Since the 7I96 has a hardware PWM generator, the setup would be different
You also likely need to enable the laser with a 7I96 SSR or other output
that is controlled by Linuxcnc and disabled by a watchdog bite
setp hm2_7i96.0.pwmgen.00.output-type 1
setp hm2_7i96.0.pwmgen.00.scale 100
setp hm2_7i96.0..pwmgen.pwm_frequency 5000
setp hm2_7i96.0..pwmgen.00.enable true
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Note that the enable should be probably be netted to a MACHINE_ON type
signal, rather than just forced on with a setp statement.
net analogout motion.analog-out-00 => hm2_7i96.0.pwmgen.00.value
You also likely need to enable the laser with a 7I96 SSR or other output
that is controlled by Linuxcnc and disabled by a watchdog bite
setp hm2_7i96.0.pwmgen.00.output-type 1
setp hm2_7i96.0.pwmgen.00.scale 100
setp hm2_7i96.0..pwmgen.pwm_frequency 5000
setp hm2_7i96.0..pwmgen.00.enable true
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Note that the enable should be probably be netted to a MACHINE_ON type
signal, rather than just forced on with a setp statement.
net analogout motion.analog-out-00 => hm2_7i96.0.pwmgen.00.value
Last edit: 26 Sep 2023 19:57 by PCW. Reason: clarify
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29 Sep 2023 19:00 - 29 Sep 2023 19:29 #281872
by swepeter
Replied by swepeter on topic TTL (PWM) Laser head and Mesa 7i76
Hi Again
I just received my card and want to double check anything before connecting it.
Am I thinking right here:
photos.app.goo.gl/y17RPj5UASp3UYWJ8
12V in to power the card and then the PWM port next to it to connect to the laser?
thanks again
I just received my card and want to double check anything before connecting it.
Am I thinking right here:
photos.app.goo.gl/y17RPj5UASp3UYWJ8
12V in to power the card and then the PWM port next to it to connect to the laser?
thanks again
Last edit: 29 Sep 2023 19:29 by swepeter.
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