A bit more progress on this. I have now gotten a parallel-port converter board working on the Beagle. For step generation it would be pretty simple, but I was trying to also emulate the PC's EPP mode transfers. I now have enough of this working to communicate with my Universal PWM Controller. I can see the UPC's device ID and read encoder counters, so that proves it is mostly working. I will work on porting my full diagnostic program. Since the hal_ppmc.c driver uses basic routines (select register address and write; sel reg addr and read, etc.) to access the PPMC, USC and UPC boards, it would be pretty easy to swap in the correct chunk of code to make the ppmc driver run on the Beagle.
Torsten at RTAI apparently has a Linux kernel running on the Beagle with RTAI patches in it. He says that the file system is up, but I don't know how much past that is working. I guess that a bigger hurdle is getting real time scheduling running without clobbering the system while also getting RT processes running in a timely manner. Torsten doesn't give a lot of updates. Jon ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
