I now realize that the A phase cannot go through the counter in the firmware of the 6i25+7i77 setup and then read serial data.
Would it be easier to use a 5i20 + 7i33 combination. Then modify the firmware so under some control input bit the A phase is first passed through by-passing the counter, so that bit-banging can be done for the first 8 bytes to get the absolute offset. Another way suggested by Marius is to use a differential multiplexer on the encoder line before it gets to the 7i77, then first pass the A phase to a gpio input and then switch to the encoder input. Any more ideas? Rudy ------------------------------------------------------------------------------ How ServiceNow helps IT people transform IT departments: 1. Consolidate legacy IT systems to a single system of record for IT 2. Standardize and globalize service processes across IT 3. Implement zero-touch automation to replace manual, redundant tasks http://pubads.g.doubleclick.net/gampad/clk?id=51271111&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
