Mesa, Linuxcnc with step direction servo's for axis and analog servo spindle.

  • mjones@welfab.ca
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23 Nov 2024 17:47 #315126 by mjones@welfab.ca
I managed to get the addressing working for the spindle analogout but spindle doesn't work still. Keep plugging away.
Address is hm2_7i76e.0.7i77.0.3. I never thought of a three until I asked for a error report and it showed me the pins.

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23 Nov 2024 20:30 #315134 by mjones@welfab.ca
that mesaflash didn't work, just said [card_ip_address] was a bad command or something like that.
I think I might have a problem with the drive.
If I go to hal signals everything shows it works, but there is no output. I put a meter on the analog pins but I don't get any voltage. Im thinking there should be some voltage there when it is outputting.

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23 Nov 2024 21:48 - 23 Nov 2024 21:49 #315139 by PCW
[card_ip_address] = Mesa FPGA card IP address, so likely 192.168.1.121 or 10.10.10.10

If you don't get analog output, (and there is some non zero aout value),
its likely appropriate analog enable is not true.

Note that the 7I77 has a common enable for analog  channels 0..4 and
separate enable for channel 5.
 
Last edit: 23 Nov 2024 21:49 by PCW.

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23 Nov 2024 22:16 #315140 by mjones@welfab.ca
HaHa Don't I feel stupid. I guess that's how my day has gone. It didn't even occur to me that [] meant put in your own value
Now to look even more stupid. How many channels does the 7i77 have, and how do I know what is on each channel. Is it a channel per drive or just i.o on one, drives on another, encoders on another and so on. until earlier today I didn't know there was more than 2 and I didn't really know they were channels of the card I just thought that was the address of the whole card.
I have alot to learn.
The following user(s) said Thank You: tommylight

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23 Nov 2024 22:43 #315142 by PCW
if (when linuxCNC is running) you run

halcmd show all  | grep 7i77

You can get all 7I77 sserial pins and parameters


 

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23 Nov 2024 22:54 #315144 by mjones@welfab.ca
oh, thats good to know, I will try that in the morning when I am at the shop.

Thanks.

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