CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Re: INCONSISTENT STEPPING - WIERD SITUATION

Posted by Jon Elson
on 2002-03-10 23:10:16 UTC
mariss92705 wrote:

> Jon,
>
> You have to change direction at some point. If the drive takes
> a "snapshot" of the direction input at the active step edge, you
> would have a direction timing "setup" requirement then.
>
> Pretend it exists and act if it does. Have the direction true at the
> active step edge and hold it for the duration of the step. Doing
> otherwise takes unneeded effort in a state machine.

Well, I have added a "Mariss switch" to my stepper rate generator
design, so now we can be sure the Gecko drives get the proper
step/direction timing.

Jon

Discussion Thread

ja_erickson 2002-03-10 12:48:39 UTC INCONSISTENT STEPPING - WIERD SITUATION mariss92705 2002-03-10 13:10:58 UTC Re: INCONSISTENT STEPPING - WIERD SITUATION ja_erickson 2002-03-10 14:14:11 UTC Re: INCONSISTENT STEPPING - WIERD SITUATION Robert Allen 2002-03-10 14:34:07 UTC Re: [CAD_CAM_EDM_DRO] INCONSISTENT STEPPING - WIERD SITUATION mariss92705 2002-03-10 15:19:08 UTC Re: INCONSISTENT STEPPING - WIERD SITUATION Jon Elson 2002-03-10 15:38:38 UTC Re: [CAD_CAM_EDM_DRO] INCONSISTENT STEPPING - WIERD SITUATION Art Fenerty 2002-03-10 15:54:38 UTC Re: [CAD_CAM_EDM_DRO] INCONSISTENT STEPPING - WIERD SITUATION Bob Campbell 2002-03-10 16:17:25 UTC RE: [CAD_CAM_EDM_DRO] INCONSISTENT STEPPING - WIERD SITUATION mariss92705 2002-03-10 16:45:34 UTC Re: INCONSISTENT STEPPING - WIERD SITUATION ja_erickson 2002-03-10 17:37:45 UTC Re: INCONSISTENT STEPPING - WIERD SITUATION ja_erickson 2002-03-10 17:57:04 UTC Re: INCONSISTENT STEPPING - WIERD SITUATION ja_erickson 2002-03-10 17:58:40 UTC Re: INCONSISTENT STEPPING - WIERD SITUATION mariss92705 2002-03-10 17:59:25 UTC Re: INCONSISTENT STEPPING - WIERD SITUATION mariss92705 2002-03-10 18:06:50 UTC Re: INCONSISTENT STEPPING - WIERD SITUATION Hugh Currin 2002-03-10 19:22:00 UTC Re: INCONSISTENT STEPPING - WIERD SITUATION destine300@a... 2002-03-10 20:12:18 UTC Re: [CAD_CAM_EDM_DRO] Re: INCONSISTENT STEPPING - WIERD SITUATION Jon Elson 2002-03-10 23:10:16 UTC Re: [CAD_CAM_EDM_DRO] Re: INCONSISTENT STEPPING - WIERD SITUATION Jon Elson 2002-03-10 23:13:45 UTC Re: [CAD_CAM_EDM_DRO] INCONSISTENT STEPPING - WIERD SITUATION