Matt Shaver wrote: > On Thu, 2008-11-20 at 13:45 -0800, Peter C. Wallace wrote: >> 2. If 3.3V drive is not enough or its inconvenient to get 3.3V to the drive, >> set the step and direction outputs into OPEN_DRAIN mode so you get a 5V swing > > Eric, do this, and use the 5 Volts from pin 49 of P4 on the 5i20 as the > "opto supply" (P1:4 on the IMS483). Set W3 on the 5i20 board to the 5 > Volt position. I think this will make it work with any of your cables.
You can set any hostmot2 output pin to open drain like this: setp hm2_5i20.0.gpio.XXX.is_opendrain 1 There's an example near the bottom of configs/hostmot2/hm2.hal. Note that the name of GPIO HAL-pins recently changed in TRUNK. In 2.2, the "XXX" part of the name above is "<Connector>.<IONum>". In TRUNK, it's just "<IONum>". Other than that it's all the same. -- Sebastian Kuzminsky sudden wind it stole my hat and i went on chasing it -- Gogol Bordello ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
