Replacing A4988 Drivers with DRV8825 on Arduino Mega 2560 + Ramps

[kd7eir]

Why do you think there is something wrong with it?

No amount of changing hardware is going to alter USB specifications. They are written by a standards committee and they are written in such a way that they are not suitable for real time communications.

I have hundreds of hours of printing using a Raspberry Pi and OctoPrint and have never had a single communications error.

[Mjolinor]

I have hundreds of hours of printing using a Raspberry Pi and OctoPrint and have never had a single communications error.

And? Do you think this somehow changes the written specifications of the standard?

Lots of people have hundreds of hours with no problem but then again, lots of people jump out of windows and don't break legs.

[kd7eir]

And? Do you think this somehow changes the written specifications of the standard?

Lots of people have hundreds of hours with no problem but then again, lots of people jump out of windows and don't break legs.

It PROVES that it works in spite of "experts" like you trashing it.

You have contributed NOTHING to this discussion. People come here for help, not pedantic lecturing. Eat a Snickers, maybe you'll feel better.