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alright now, any questions?

aDm1N wrote:

I started from scratch with the standard examples. I made some adjustments, and now Remora Input 4 is responding. However, this only happens when the emergency shutdown is disabled in the GUI. So, Remora probably only starts working after that.

that makes sense.
refer to tuxcnc example

I havent tested it, but this looks like what you need to do. you need to modify the portion of your halfile that already references it

DarkPhoinix wrote:

I have recreated the problem with the function generator. Now I am sure the problem lies in the configuration, or so I believe. For now, I would like to know which parameters I need to set to have the same parameters for frequency and pulse times in the hal and ini files (like pulse 1,000,000ns frequency 988Hz). Thank you again for your patience!

refer to the previous posts. replace the stepgen in your config.txt with the DMA stepgen. Make sure the step and direction pins are the NVEM one. The step time and space parts are what you need to configure. I dont know the units. start at 1 and 1 and go up from there.

I need hardware suggestions.  There seems to be a gap in my knowledge, and in my research.

I just got a new CNC router, and it came with a Grbl-based controller.  I always used LinuxCNC in the past on my DIY machine, and I can already tell that I'll probably be happier if I switch to LinuxCNC on the new one.

The most recent incarnation of the old machine was driven by a Raspberry Pi and a Mesa ethernet card.  The Mesa was connected almost directly to the limit and estop switches, and the step/dir lines went to a quad stepper driver board I got from Sparkfun a long long time ago.  The wiring was a horrible rat's nest of jumpers running between pin connectors glued upside down to a plank.  (I'm not exaggerating.) And I don't want to use the Sparkfun board again, for various reasons.

At some point I'm going to want to use the Mesa card with the new machine.  But what I'm picturing, that I don't have, is the "interface" board.  It needs to take 24V power, and have 3 or 4 of those little 16 bit stepper driver modules.  And it needs to have a bunch of screw terminal strips, set up to logically simplify the 6 or 7 pairs going to switches, the 3 or 4 connections to the motors, and all of the interconnect to the Mesa.  Basically what I want is an XYZ CNC router breakout board, with drivers.

But all I can find is complete controllers:  all of what I described, hardwired to an ATMega328, or ESP32.  Or, all of what I described, in the form of an Arduino hat.  Better, but still not very Mesa-friendly.

Can anyone point to the product I'm looking for?  Or tell me (nicely what I should be looking for instead?