-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Start with the README and README.stepgen files in configs/pru-examples, that should be enough to get a couple pins twiddling.
Note I have a setup.sh script in that directory that puts pins into the proper mode for PRU access. This is the nasty, dangerous, no error checking version of how to do this...if you enable *ALL* PRU pins this way you *WILL* crash the system (by breaking the SD card interface) which is why some of the pins are commented out. I am also not positive the stepgen code is 100% correct. It seems to "wander" a bit much in the DRO when there is no commanded movement, but I haven't actually hooked it to motors yet. Anyway, once you can see some pins toggling, you can play around with the code. Micheal's "debugger" is actually quite helpful for single stepping through the code. I have begun work on adding GPIO support and a more flexible "tasklet" scheme to the PRU code, so holler if you want to coordinate on any changes, or have any questions about how the code is written. On 5/8/2013 12:03 AM, Ian McMahon wrote: > I'd like to spend a little bit of time messing with your PRU > code... got any tips on the best way to get started with it? > > On May 7, 2013, at 5:04 PM, Charles Steinkuehler > <[email protected]> wrote: > > Awesome! I'm looking forward to playing with this! > > ...now where did I put all that free time?!? :) > > On 5/7/2013 2:52 PM, Ian McMahon wrote: >>>> There's a mostly functionally complete bb_gpio driver in the >>>> bb-hal-gpio branch: >>>> >>>> http://git.mah.priv.at/gitweb?p=emc2-dev.git;a=shortlog;h=refs/heads/bb-hal-gpio - -- >>>> Charles Steinkuehler [email protected] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (MingW32) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlGKOmAACgkQLywbqEHdNFz0tQCgqWBSXyYoBJTBgWBT9zqm5+bM 1LkAnAvKkVk2o7gycFG7flI4csekdFGy =l8W/ -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
