On Mon, 2007-11-05 at 12:17 -0500, Stephen Wille Padnos wrote: > Kirk Wallace wrote: > > > [snip] > > > >Where can I get more information on Hostmot2? > > > > > I think the Hostmot2 files are on the Mesa website, but my understanding > was that they only work with the 5i22. I should look more closely at > the VHDL source I guess :) > > At the moment, there is no EMC2 driver for the HostMot2 configuration. > Hardware that's this configurable is difficult to use in the HAL model, > because the HAL pins you need are dependent on the configuration of the > hardware, and can't be changed after driver load time. This means that > you either need to specify all of the options on the driver load line (a > nightmare when there are so many functions), or you need to export all > possible pins in HAL, along with enable / mode bits that allow the user > to (re)configure the hardware in HAL. This is difficult at best because > some functions require other functions to be shut off, and there are > "unintended consequences" - for example, if you enable an SPI port, that > disables the I/O functionality on those two pins (though you can still > read back the pin state, I believe), so what do you do if someone has > connected those I/Os to a HAL signal? > > I think there will also be SPI blocks in the configurable Mesa HAL > driver at some point, FWIW. > > - Steve
Are you talking about reconfiguring the 5i20 after loading EMC and the 5i20 driver? Normally, I would think, you would create the new configuration in a new driver. It certainly would be cool to be able to dynamically configure EMC and the 5i20, but might not be good for people like me to know about it. -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC lathe Bridgeport mill conversion pending Zubal lathe conversion pending) ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
