LitexCNC: firmware and driver for 5A-75B and 5A-75E

  

Put a board like this on and you won't have any problems! Price $5 + LPT cable!
It connects to the Colorlite board!

This board is not good for high speed step/dir . 
For reliability you need differential signals. 
It is also important to have a nice layout for the input signals.
 

besriworld wrote:

This board is not good for high speed step/dir . 
For reliability you need differential signals. 
It is also important to have a nice layout for the input signals.

 

I have designed a PCB for this.
I posted the schematic of the board in some previous posts
By the way, I used differential signal transmitter ICs to send pulse and direction
But the problem is that the board generates steps even though the value of the <board-name>.stepgen.<index/name>.enable pin is zero.

besriworld wrote:

This board is not good for high speed step/dir . 
For reliability you need differential signals. 
It is also important to have a nice layout for the input signals.

 

Everything works perfectly! No problems whatsoever!!!

You may have a problem with input isolated signals - not good for a "noisy" environment. The 5-axis Chinese controller uses the same simplified scheme. What drivers are you using? Do you have movement at first power on the control board? Why are you ignoring the enabling signal?

I use a servo motor
What do you mean by enabling signal?
How do I connect it?
Even if I disable the motors, the position of the axes changes
I don't want the position of the axis to change every time I close the software or press the power button or e stop
Please see this post to understand what I mean
github.com/Peter-van-Tol/LiteX-CNC/discu...ssioncomment-9351198