Changes in configuration files generated in pncconfig for 7i76 to 7i78

I suggested the G540 configuration because it includes  PWM generator that you can use
with pncconf for setting up the the spindle, the 7I76 configuration does not.

On the halcmd, yes you need the driver loaded, as I mentioned:

Note that you can list all pin and parameter names when LinuxCNC is running with:

ENCA+, ENCA-, ENCB+, ENCB-, IDX+, IDX- are all physical signal names and are not present in hal

encoder hal pins and parameters will all have names like:

hm2_7c81.0.encoder.00.position
hm2_7c81.0.encoder.00.index-enable
 etc etc

Where  the 00 in hm2_7c81.0.encoder.00.position is the encoder number

with 7C81 7i78X2d or 7I78x3d firmware, encoder 0 would be on P1

If you want to use encoder 0 on P1 for the spindle encoder, you select encoder 0
as spindle encoder  in pncconf. Similarly PWMgen 0 is on P1 with the 7I78 firmware
so pwmgen 0 would be selected for spindle speed control.





 

Ok, thanks, I'll try the G540.

Hello, I was trying to change the bitfile in my 7c81 so that there would be only one 7i78 on port P1. Port P2 would be freed up for separate MPGs for X and Z axes. So there would be no need for 7i33 (which would probably be another complication I wouldn't go through). But in the Mesa firmware there is no 7i78x2 configuration, nor 7i78 for Xilinx ISE (*.xise). Is it possible to download this configuration somewhere else?

Alternatively, could someone please create a bitfile for me for 7c81 with one 7i78 and port P2 entirely for encoders (i.e. at least 3)?

There is a 7I78X2 configuration: 7c81_7i78x2d.bit 

Do you need MPG encoders or high speed encoders+index?

[/attachment]  I know that there is a configuration 7c81_7i78x2d.bit, but there is the same on P2 as on P1 - 7i78. Another 4 axes. And I don't need that for the lathe. But I would like one MPG encoder for each axis - basically to be able to control the lathe "almost" manually. The rest of P2 controls the tool turret and on P7 there are limit switches and buttons.
So that's the goal.