CW5045 - rmu75/linuxcnc-wiki GitHub Wiki

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date: '2017-10-26T22:18:45' title: CW5045

The CW-5045 is a microstepping driver sold by the UK company cnc4you.co.uk

Product Information: http://www.cnc4you.co.uk/index.php?route=product/product&path=82&product_id=31 Datasheet: http://cnc4you.co.uk/resources/CW5045.pdf

Timing information

Timing information received by email from Brian at cnc4you:

u = micro Step pulse minimum is 1.5useconds Max frequency is 100KHz (10useconds) Direction signal must be stable for 5useconds before next step pulse. So if you tell LinuxCNC step pulse is 2useconds to be safe then you need to wait 8 microseconds before next pulse. If you change direction you must wait 5useconds before sending next step pulse.

This can be interrupted to mean:

;Step Time: 2000 ns ;Step Space: 8000 ns ;Direction Setup: 5000 ns ;Direction Hold: 5000 ns ;Steps on: Rising Edge

It may be possible to reduce the Direction Hold value to 0 but I have set it to 5000, to be safe.

There is a detailed description of what these timing values mean in the stepgen man page: http://linuxcnc.org/docs/html/man/man9/stepgen.9.html