On 4/25/2013 5:26 AM, andy pugh wrote: > On 25 April 2013 03:27, David Bagby <[email protected]> wrote: > >> Available Capes: >> >> I'm looking for a BB cape to use for trying out LCNC (on BBW). However >> the only two that I know of don't appear to be available (BeBoPr and >> Replicape). > > BeBoPr appears to use a coprocessor for step generation. This may be > unnecessary with the PRU code modules, and perhaps a simple"dumb" > breakout would suffice. > > It might be faster to design a breakout and have it made than to wait > for BBB to come back into stock. >
The coprocessor Bas uses for the BeBoPr is the PRU. His code isn't open, so I wrote a simple reimplementation of the LinuxCNC stepgen code (with a few extras...PWM and delta-sigma output is supported as well). The I/O pins used are configurable at runtime, but currently only PRU I/O pins are supported. I am going to add support for the PRU to directly drive GPIO pins, so basically any pin on the chip could be used with appropriate I/O mux setup. -- Charles Steinkuehler [email protected] ------------------------------------------------------------------------------ Try New Relic Now & We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, & servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
