Hi all, I'm working out the design for the Yaskawa Sigma V absolute encoders.
Within hostmot2-firmware, I've been studying the code and I'm not sure of the exact interface between the mesa pci cards and linuxcnc. It seems that the pci card is mapping registers into memory and that each module is reserving a register address so that the hostmot2 driver knows where to look for them to control them. In IDROMConst.vhd, I'm looking for register address space to use. But I'm getting the feeling that it is all used up. Perhaps that is the reason that pkuart chose to use the same address's as the uart module. The DPLLFreqLowAddr comments "note overlaps translate RAM" and "will fix in the greate re-alignment".... Does anyone know what the great re-alignment will be? Can anyone shed some light on the addressing scheme used with the mesa cards. Any other overview of how it works would be useful too. Thanks, Curt _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
