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I think that the pulse width is called "Step  On-Time" in pncconf

The firmware and pin files are in this zip file:

www.mesanet.com/software/parallel/7c81.zip
 

I got a command not found
 

linuxcnc.org/docs/stable/html/config/ini....html#sub:ini:custom

JT

In this case this was just a proof of concept test. Now that I understand how it works, I will expand. I'm probably not going to use the actual Mesa inputs, I have a SAMD21 on my custom control board that if all goes to plan will emulate the ArduinoConnector project sending button presses to halui and also receive data back from halui. I have this working now for a few points on a little nano board. Next step is to port that nano code to the SAMD21 and then expand for all required points.

Ok I changed the "actual servo period" to 1000000 in pncconf

Feeling not to smart at the moment... where do I find "step pulse width" in pncconf and I have searched the file system and do not see any files starting with 7c81

Sorry for the dumb questions... my google foo needs some help for this kind of stuff

There is information in the 7I97T manual (page 13)
for making a cable for any Sserial device (like the 7I84)

The 7I97T has a single RS-422 interface so can only connect
to a single 7I84 unless you add and additional expansion daughter
card (or simple 1 chip RS-422 interface) to the 7I97Ts P1 expansion
connector.


Do you have the drive and encoder pinouts?

OK that's Intel so needs IRQ coalescing disabled

Before messing with the network setup its possible
to do this from the command line:

sudo ethtool -C [device] rx-usecs 0

where [device] is the name of the Ethernet device connected
to the Mesa card (usually something like eno1 or enp2s5 or similar)

You can determine this name with the command:

ip a

 

 

7i92t_5abobx2d.bin should work with:

Stepgen0 --> Y axis
Stepgen1 --> X axis
Stepgen2 --> Z axis

Also in pncconf, set the number of stepgens to 3,
and the number of pwmgens and encoders to 0 to
free up the other pins so they can be used as
GPIO if needed.

 

lspci  | grep -i eth

The character after lspci is a vertical bar
( usually shift \ ), not an 'L'

Yes, I do.

X Step 4
X Dir 5
Y Step 2
Y Dir 3
Z Step 6
Z Dir 7

X Home 12
Y Home 11
Z Home 13

E-stop 10

Is the next step finding firmware that happens to match the above?  Or can I use the tool to poke the values into the right place, maybe using

--wpo     address value          Write hostmot2 variable directly at 'address' with 'value'.

Thanks so much for your guidance!
 

maybe not on the right place  but ...
i just get one 7i97t and also  two 7i84 card from eusurplus  
where can i find a wire diagrama how to conect the two 7i84 to the 7i97 and also  where and how to conect the shaftencoders and driver inputsignals 

thx in advance  

Can confirm this portion actually controlled voltage up to 10v on NVEMs (MX1052) output

net spindle-cw remora.output.09
loadrt pwmgen output_type=1
loadrt scale count=1
loadrt lowpass count=1
loadrt abs count=1
addf scale.0 servo-thread
addf lowpass.0 servo-thread
addf abs.0 servo-thread
setp scale.0.gain 0.00416666667
net spindle-cmd-rpm spindle.0.speed-out => scale.0.in
net spindle-cmd-rpm-abs scale.0.out => abs.0.in
net spindle-speed-DAC abs.0.out => remora.SP.0
net spindle-cw <= spindle.0.forward

 

 

Awesome, did you use any opto-couplers/digital isolators, are the nine 16-pin IC's only level-shifters?