MESA 5i25 + 7i85S

Yes there is a combination that PNCconf handles already, with this problem. I'm sure I added a work around in PNCconf to handle it.
I will probably have to add this one too. I can't remember what I did. I think I convert them in PNCconf to muxed encoders and hide one.

What I did for 7i77x1 (which is not a real firmware it's 7i77x2) I told PNCconf to automatically deselect the second card when that firmware name shows.
While that works it means I have to put logic into PNCconf for every firmware I want to do that with. So I just choose the firmware that would seem common.

When I get a little time I will confirm and add your XML's to the others.
Thanks for posting them!

PCW wrote: There is currently a limitation in the HostMot2 driver that prevents mixing normal and muxed encoders on one board, so a configuration that has muxed encoders must use them everywhere. So if you change the 7I78 encoder info in the XML file to indicate that the 7I78 has a muxed encoder (which matches the firmware) LinuxCNC should be happy with it. You will also have to add 2 encoders to the module portion of the XML file.

That appears to have solved the problem for using 7i85S + 7i78. Linuxcnc will now load the configuration. Dmesg shows what I would expect for pinouts.

Time to do some wiring and see if it works!

Thank you!
Larry

cmorley wrote:
When I get a little time I will confirm and add your XML's to the others.
Thanks for posting them!

Chris-

I will report back on the 7i85S_7i78.xml configuration after I do some hardware testing.

Thank you,
Larry

Chris-

After some testing and head scratching it seems that Pncconf, when used with the 5i25 card, should start the IO Connector 2 GPIO pins with 17, not 24 (assuming using GPIO on the 2nd card, not built in modules).

Finding which TB1/TB2 pins on the 7i78 card correspond to the GPIO pins from IO Connector 2 also appears not so intuitive. I seem to have GPIO 17 - 20 located, but 21 - 24 I am not sure of.

However, I could be all wrong, it may be my XML files that are creating issues.

I am using the 5i25 + 7i85S + 7i78.

-Larry

<?xml version="1.0"?>
<hostmot2>
<boardname>5i25</boardname>
<ioports>2</ioports>
<iowidth>34</iowidth>
<portwidth>17</portwidth>

pncconf should use portwidth for its connector N calculations

You can deduce the 7i78 pinout from the dmesg:
GPIO 17 though 24 are stepgens
GPIO 25 = PWM-OUT
GPIO 26 = PWM-ENA
GPIO 27 = PWM-DIR
GPIO 28 = SSERIAL TX
GPIO 29 = SSERIALTXEN
GPIO 30 = SSERIAL RX
GPIO 31 = QCOUNT IDX
GPIO 32 = QCOUNT B
GPIO 33 = QCOUNT A

Peter-

Which TB1 pins are GPIO17 - 24 ?

So far, it looks like:
1-Gnd
2,3 - GPIO 18
4,5 - GPIO 17
6- +5
7-Gnd
8,9 GPIO 20
10,11 GPIO 19
12- +5
ETC up to pin 24.

Does that make sense? Is it possible to get a schematic for the 7i78?

-Larry

PCW wrote: pncconf should use portwidth for its connector N calculations

You can deduce the 7i78 pinout from the dmesg:
GPIO 17 though 24 are stepgens
GPIO 25 = PWM-OUT
GPIO 26 = PWM-ENA
GPIO 27 = PWM-DIR
GPIO 28 = SSERIAL TX
GPIO 29 = SSERIALTXEN
GPIO 30 = SSERIAL RX
GPIO 31 = QCOUNT IDX
GPIO 32 = QCOUNT B
GPIO 33 = QCOUNT A