On Wed, 10 Oct 2007, Eric Johnson wrote: > Date: Wed, 10 Oct 2007 13:54:59 -0400 > From: Eric Johnson <[EMAIL PROTECTED]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: "'Enhanced Machine Controller (EMC)'" <[email protected]> > Subject: [Emc-users] More outputs on m5i20 > > Hi all, > > I have a project which requires interfacing to a laser having 2 x 8 bit BCD > inputs, which alone would exhaust the available outputs of the standard > configuration on the m5i20, and I need a few additional outputs beyond > these. I have plenty of inputs available, so a 24 / 24 split on inputs and > outputs, or even 16 / 32 would work fine. > > I know John K was working on this with the new FPGA program and driver, but > I have not heard much on that in a while. Is that far enough along, or can I > help out on the I/O portion to enable reconfiguring the I/O? > > The Mesa boards are inexpensive enough that I could just use a second board > for handling the extra outputs, but it would save some real estate and a > terminal block to be able to do it with a single board.
Do the outputs need to be isolated or would a simple SPI-TTL I/O card do? (I'm planning a simple low cost SPI to 48 TTL I/O card) Five of these cards would connect to a 5I20/5I22/5I23 FPGA card (50 pin flat cable spilt into five 10 pin cables). I may isolate the SPI interface, but the individual I/O bits would not be isolated from each other > > Regards, > Eric > > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and a browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
