> Can someone please help me understand how the hal_pru_generic driver/comp,
> called with a number of stepgens= and pwmgens=, ends up mapping the
> generated signals to hardware pins on the BBB headers (or chip)? Similarly
> how does the hal_bb_gpio mapping work?
>
>
The hal_pru_generic component is a driver written in C and Assembler that
creates the step signals on the hardware pins. The best way to understand
all this is to read the HAL and Integrator Manuals on the LinuxCNC wiki
pages. I had the same question(s) and this pretty much cleared it up. If
you are able to read through the source code you can see exactly what's
going on.
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?LinuxCNCKnowledgeBase
Bob
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