Hi, I am working on a cape for basic IO buffering for the step/dir pins and I also want to use shift registers for the regular input/output. I am planning on using a 74hc595 on the board for the 8 outputs and a 74hc165 for the inputs. I am also going to add a port to allow cascading more of these registers on add-on board for more IO if needed.
Now my question is in regards to the hal driver for this. Should I use the SPI pins/driver to read write the shift registers? I will also need latch pins in addition to the clock/data lines. Or should I just bit bang the whole thing? I don't want to slow down the servo loop too much if possible so I am looking for advice on what pins/drivers would work the best. Thanks Dave -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
