Introducing new DIY hobby CNC controller project TOAD4 / EazyCNC

[Jonathan]

Jonathon,
Don't know where you are getting 11kHz from.
The manual says the 6560 driver chip is limited to 15kHz

This page from the first post:
About EazyCNC

It says:

Four identical stepper drivers:
...
up to 11 kHz step frequency'

Interestingly the next paragraph from the document you read says 5kHz!

In practice the microcontroller and its firmware can be the limiting factor and it maybe be
hard to push the software generated step clock rate above 5 kHz. Fortunately most applications
are likely to require much slower speeds.

So it might be 11kHz, certainly not more than 15kHz with TB6560 and might be just 5kHz. I think we need clarification from the member who started this thread...