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pgf wrote:

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

That is a very nice way of asking, thank you.
Take a picture of the insides of the electric/control box and upload it here, we need to know what is there to be able to tell you what next.
In general, get the so called "TB6600" drives that use the TB67S109 chip (cheaper and smaller box), they are very good and usually under 10$ a piece, then get an old PC with parallel port, preferably Dell OptiPlex 980 in the big tower case as it has a built in parallel port, and a DB25 to DC25 or Centronics cable, cut one side, strip down some 15CM, use multimeter to find the pins 2, 3, 4, 5, 6, and wire those to the drives. Add a power supply for the drives, be it from old PC or even better laptop adapter or just cram the drives inside the PC case (plenty of room there) and use it's power supply 12V rail. That is it, for under 100$ you have a very reliable CNC machine controller.
Be warned that it will be limited in speed, though, depending on drive voltage and microstepping set on the drives, but it will work for years without issues.
You can add a Mesa to that setup whenever you want...

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.