Another new setup with mesa 5i25 / 7i76

I have finally got my 5i25 / 7i76 cards to replace the PP. but I am unsure what the next step are. ie once the cards are installed What step do I take to get Linuxcnc to see the cards etc.

I have read the manuals on the two cards.

I installed from here www.linuxcnc.org/index.php/english/download 2.6 then updated with sudo apt and it brought it up to version 2.8.0
I am using a stepper based system.

Any help would be appreciated .. Clive

andypugh wrote:

You should be able to start with the pncconf wizard from the CNC menu.

Thanks for your help Andy. I now have read the pncconf wizard. I have installed the 5i25 card in the pc and the pncconf seems to recognize it.

My first question is the power supply to the 7i76. I notice in the manual Field-power-con TB1 pins 1,2,3,and 4 are power for the I/O etc do all these pins require power or just to one of them (plus pin 5 VIN for the chip) I will be using a 24V PS.

That's what I figured thanks for reassuring me.
OK I have been playing with the pncconf wizard and using the perams from my pp card on the mill setup ie steps per etc.

I don't seem to be able to access the axis config page places to insert the home_search_vel and home_latch_vel etc

I can access the positive_travel_distance tabs at the top though. Do you know what I might be missing?

I have not connected up the 7i76 BOB yet ..Clive

ps

I think I am getting confused with the tabs on the config page the tabs are config _i/o con 2 i/o con3 and 7i76 with some tabs relating ie TB5 and 6

I/o con 3 I think is for each axis

I/o con 2 is for general input and outputs but so is the TB tabs

Question is Do I setup the input and output through the TB tabs or the I/o con 2

Sorry if this is all a bit basic but the manuals are a bit vague as there are so many options

andypugh wrote:

(shamefaced look)
I haven't ever used Pncconf. All my configs were either written by hand or modifications of sample configs.

There is a manual for pncconf...www.linuxcnc.org/docs/html/config/pncconf.html

Thanks Andy I have read that manual but it's not clear.

It would be nice to get hold of a config for XYZ with steppers using the combi I have !!

I am waiting for a 24V ps to turn up before I connect the 7i76

It isn't like a parport where any pin can be a step pin

Yes I agree with that. One of the problems is the wizard uses the firmware SVST8_4 which uses a servo based system and different tabs etc.

I will have another play with it tomorrow I am working my way through this old thread www.cnczone.com/forums/linuxcnc-formerly...45914-mesa-5i25.html.

I am learning all the time though it will suddenly dawn on me