Need help to wire and config Mesa 7i92TM

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08 Jun 2023 11:58 #273166 by CollieBabaX
Sorry the jumpers were both down.
Now with ping 10.10.10.10 in the terminal works, the average ping is ~0.4ms.
And with "mesaflash --addr 10.10.10.10 --device=ETHER --readhmid" it let me see the configurations.
Thank you andy, very much appreciated. Can you help me with wiring the stepper drivers?
I don't want to make mistakes.

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08 Jun 2023 13:52 #273173 by CollieBabaX
Or I have to connect the stepper motors directly to the bob?
And why the I/O numeration on pncconf is different than the one in mesa card configuration? (in the terminal)

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10 Jun 2023 19:19 #273284 by andypugh
No, you connect the stepper motors to stepper drivers (A+, A- B+ B-) and then connect the stepper drivers to LinuxCNC (step/dir)

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11 Jun 2023 07:28 #273312 by CollieBabaX
Ok. And what about the different pin numeration list? Can I change it manually? I looked at the "my_LinuxCNC_machine.ini" file but I didn't found the I/O list.
Attachments:

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11 Jun 2023 07:45 - 11 Jun 2023 18:36 #273313 by Aciera
Never mind. You found the break out board long ago. Not sure why I did not see all of the other posts. Head scratch...
Last edit: 11 Jun 2023 18:36 by Aciera.

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11 Jun 2023 11:14 #273324 by andypugh

Ok. And what about the different pin numeration list? Can I change it manually? I looked at the "my_LinuxCNC_machine.ini" file but I didn't found the I/O list.
 

There are several pin numbering schemes throughout the system, and they don't line up for fairly good reasons. 

There are the GPIO numbers associated with the FPGA, which in turn do not align to the pin numbers on the chip. 
Then each of these is connected to a pin on the DB25 connector or HD50 connector.
Then, on the Mesa daughter boards the terminal block numbers are another numbering scheme, and these don't match the DB25 numbering, partly because there are lots more of them on many cards because the DB25 is partly carrying serial data. 

Then the firmware on the FPGA determines which pin stepgen.0.step is on, for example (and this part _can_ be changed by changing the firmware) 

You can get the actual pin numbers that you need, and the information about where each with mesaflash. 
mesaflash --addr 10.10.10.10 --device 7i92 --readhmid

Will give you a printout which lists what is on each IO pin number, what the associated DB25 pin number or header pin number is,  and which FPGA IO pin it is. 
The following user(s) said Thank You: CollieBabaX

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22 Jun 2023 05:39 - 22 Jun 2023 05:40 #274030 by CollieBabaX
Thanks for the explanation andy, but sorry I don't understand.
With mesaflash I saw the I/O list but in PncConf the numbering is different from this one.
I have attached screenshots of the terminal and PncConf.
In the list I receive with mesaflash there is the number of the I/O and the corresponding DB25 pin, but why is the numbering so different in PncConf?
Attachments:
Last edit: 22 Jun 2023 05:40 by CollieBabaX.

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22 Jun 2023 05:42 #274031 by CollieBabaX
Sorry, I do not understand what you mean?

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22 Jun 2023 13:26 #274044 by andypugh
Pncconf is using the stepgen and GPIO numbers, looking at it.

What daughter boards (if any) are you using?

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22 Jun 2023 15:23 - 22 Jun 2023 15:23 #274050 by CollieBabaX
No daughter boards, just the two in the attachments.
But what do you mean by stepgen and GPIO numbers?
In PncConf some "functions" don't even have a number.
Attachments:
Last edit: 22 Jun 2023 15:23 by CollieBabaX.

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