STEPPER MOTOR DRIVER, MKS TB6600, 4.5A connection

Hi there,

I would like to use the MKS TB6600 4.5A drivers together with an E-cut break out board to drive Nema 23 stepper motors (3A).
My problem is that I cannot figure out how to connect the drivers to the board. Before I fry both the BOB and the driver I would like to ask for some help.

On the driver I see there are four connections: EN, DIR, CLK, GND.
On the BoB electrical diagram I see they have used a different type of driver. The break out board has 3 connections for the driver: XD ( think is the DIR on the driver), XP (I thinks the CLK on the driver) but then I have +5V and not the GND. Assuming the Enable is not used, I am not sure if I should connect some resistor somewhere or if I have to use the GND from the BoB to the GND of the driver.

I have attached the electrical diagram for the E-cut break out board.
I would really appreciate some direction on how to connect the driver to the board.

Thanks for the help
Felice