Stepper Motor Control via Usb

[Kunal]

hi,
Does anyone know how I can control a stepper motor through a USB port
(USB only!).
know a chip that control a stepper through USB directly? or a chip
that parallelizes data from a USB port?
Any chip that can get me halfway to controlling it will be valuable
info too.

Kunal

 

[Leon Heller]

hi,
Does anyone know how I can control a stepper motor through a USB port
(USB only!).
know a chip that control a stepper through USB directly? or a chip
that parallelizes data from a USB port?
Any chip that can get me halfway to controlling it will be valuable
info too.

Any of the USB MCUs like the Cypress AN2131 should be able to do this.
You'll need to write the code to drive the stepper, of course.

Leon

 

[Jan Panteltje]

hi,
Does anyone know how I can control a stepper motor through a USB port
(USB only!).
know a chip that control a stepper through USB directly? or a chip
that parallelizes data from a USB port?
Any chip that can get me halfway to controlling it will be valuable
info too.

Kunal

Google FT245BM for USB interface chip.
There are drivers too.
The steppper will likely require a second chip.
JP

 

[Paul Burke]

hi,
Does anyone know how I can control a stepper motor through a USB port
(USB only!).
know a chip that control a stepper through USB directly? or a chip
that parallelizes data from a USB port?
Any chip that can get me halfway to controlling it will be valuable
info too.

Do look out for the big catch with USB (at least USB1, I've not looked
at 2)- the 1ms time frame. If you are trying to poke the stepper lines
directly, rather than send commands to a more-or-less intelligent
stepper driver, you could find the motor very slow and uneven. For that
reason, don't bother with a USB-to-parallel converter.

Paul Burke

 

[david austin]

If you have to write the code to drive the stepper see:
http://mysite.wanadoo-members.co.uk/stepper