I originally developed the fpga firmware and hal driver for pluto-p, but I no longer develop them. I don't even have a PC capable of running the development environment for the FPGA anymore.
I do not recommend pluto-p for new users to purchase. The Mesa Electronics and Pico Systems FPGA cards are both superior in functionality and reliability. The specific problem you're experiencing is probably an incompatiblity between the EPP protocol implementation in pluto-p and your PC. One of the problems with the pluto-p firmware has been generally-poor compatibility with different EPP chipsets on the PC side. When performing multiple EPP reads or writes the PC and the Pluto end up disagreeing about what register is being accessed, which (among other things) ends up giving the wrong value for encoder counts or stepgen feedback position. Sometimes running with a shorter cable or with the pluto directly attached to the parallel port will alleviate these problems. This is one example of the superiority of the Mesa and Pico EPP products--they are designed with appropriate termination on the EPP bus, while the Pluto is not. This means that certain problems on the Pluto board may be due to the board design and simply not fixable in software. Jeff ------------------------------------------------------------------------------ Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
