On Thu, 25 Nov 2010, Andy Pugh wrote: > Date: Thu, 25 Nov 2010 11:46:53 +0000 > From: Andy Pugh <[email protected]> > Reply-To: EMC developers <[email protected]> > To: EMC developers <[email protected]> > Subject: [Emc-developers] 7i64 > > I found a surprise package in my letterbox last night, a 7i64. This is > the 24 input / 24 output isolated IO board that communicates via the > same 5MBs serial protocol as the 8i20 motor driver. > > Two questions come to mind: > > 1) Does it make sense to create a fast-thread compatible function that > can link to the fast-thread Hostmot2 GPIO read/write functions?
I dont think the maximum update rate of the 7I64 in serial mode (4 KHz or so) makes this of much use. The 7I64s SPI interface can update at around 200 KHz so is suited to a fast base thread, but not the LBP serial. > > 2) Does it make sense to try to think of a way to assemble the pins > into variable-length bytes? Doesn't the weighted sum comp do that? (at least for inputs) dont know if the reverse function exists for outputs however > > -- > atp > Peter Wallace Mesa Electronics ------------------------------------------------------------------------------ Increase Visibility of Your 3D Game App & Earn a Chance To Win $500! Tap into the largest installed PC base & get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
