Mesa 7i96 system planning-How Supported is Supported?

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7 years 6 months ago #130385 by tommylight
Replied by tommylight on topic Mesa 7i96 system planning-How Supported is Supported?
www.gnipsel.com/linuxcnc/7i96/index.html
That is a tool made by JT for 7i96.

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7 years 6 months ago #131133 by ikkuh
Replied by ikkuh on topic Mesa 7i96 system planning-How Supported is Supported?

jools wrote: if it has support from pncconf yet (or if this is planned)
Jools


There is a working 7i96 config tool made by JT, gnipsel.com/linuxcnc/7i96/index.html Pncconf does not support the 7i96.
Some say that you can use the 7i76e in pncconf, but I found that to be a lot of work and very mediocre results.

Btw, the 7i76e card has some advantages over the 7i96 and is only a third more expensive.

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7 years 6 months ago #131160 by pl7i92
Replied by pl7i92 on topic Mesa 7i96 system planning-How Supported is Supported?
a tool like that woudt be good for the 7i92 also
reding the pins in and provideng the user a full pinout on the given Bitfile flashed to the 7i92

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6 years 11 months ago #150996 by persei8
Replied by persei8 on topic Mesa 7i96 system planning-How Supported is Supported?
Simple question: The 7i96 has an RS-485 interface, which according to the manual, "is intended for I/O expansion with Mesa SSERIAL devices". So can it be used to control a VFD or not?

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6 years 11 months ago #151000 by tommylight
Replied by tommylight on topic Mesa 7i96 system planning-How Supported is Supported?
That should be an RS422, not 485. So far i am not aware of anyone using it for that, they just use an USB to RS485 converter.

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6 years 11 months ago #151002 by persei8
Replied by persei8 on topic Mesa 7i96 system planning-How Supported is Supported?
Not trying to be contrary, but the manual calls is "RS-422/RS-485 INTERFACE"
Well that's disappointing. Seems like it would be an important function to include in the FPGA.

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6 years 11 months ago #151004 by tommylight
Replied by tommylight on topic Mesa 7i96 system planning-How Supported is Supported?
Well, maybe PCW can do something about it, or at least tell us for sure if it is possible or not.
I just know that Mesa has two pairs of wires for that, RS485 use only a single set of wires.
Never liked RS485 much, and i utterly hated RS232 back in the days of modems and stuff.

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6 years 11 months ago #151006 by rodw
Replied by rodw on topic Mesa 7i96 system planning-How Supported is Supported?
With the correct bit file, it is possible to expose the Mesa UART and you can use this for serial communication.
See the hostmot2 docs linuxcnc.org/docs/devel/html/man/man9/hostmot2.9.html#UART

There are some examples on how to use this but to use it for your own purposes, you would need to write your own driver.

I also picked up on the RS485 with the 7i96.

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6 years 11 months ago #151052 by persei8
Replied by persei8 on topic Mesa 7i96 system planning-How Supported is Supported?
I guess I will at least investigate a little further. I've done a lot of work with serial IO and once even implemented a 16550 type UART on a Spartan FPGA in VHDL, but I don't know if any of that will help now.

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6 years 11 months ago #151065 by PCW
Replied by PCW on topic Mesa 7i96 system planning-How Supported is Supported?
There is UART support in the firmware (PktUART) and minimal LinuxCNC driver support

There is another thread on where someone is using the PktUART to communicate with custom hardware:

forum.linuxcnc.org/27-driver-boards/3751...80hd?start=30#150357

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