Peter C. Wallace wrote: > At the lowest (hardware) level, the stepgen will not run faster than > 1/(StepLen+StepSpace) regardless of whats programmed in the velocity register. > one level above that the HostMot2 driver will not use a velocity greater than > xxxx.maxvel. If .xxxx.maxvel is set to 0 the driver will chose maxvel based on > the StepLen and StepSpace settings (with some headroom I hope).
The driver currently does not hold back any headroom when maxvel is 0, it uses 1/(StepLen+StepSpace). I think of "maxvel=0" as "trust the trajectory planner". In this mode it's up to the TP to not ask for more than the stepgen can give. If the source of the position-cmd is not a trustworthy trajectory planner, maxvel can be specified by the human, and the driver will of course honor it. (And the same for maxaccel.) Do you think it should be different? -- Sebastian Kuzminsky ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
