Hello Gentlemen, I happen to own an rather old (1994) ISA card capable of reading three encoders with 24 bits each counting width. In conventional programs, it has been easy to integrate it because I only have to read its three ports (jumper defined) three times in a row (automatically switching registers) to get all the 24 bits for each axis and add the values afterwards, shifting the higher bytes by 8 or 16 bits to the left. Another advantage: it's very fast without loading the PC's CPU or bus itself, in fact, it keeps counting up and down all by itself as long as the PC is powered. It can be run under Ubuntu, which I tried, and doesn't mind the ISA bridge on the combined ISA/PCI motherboard. It doesn't affect latency in any way, either. Furthermore, the card has 8 digital inputs (for reference switches), 4 relays, and 4 current outputs which can be addressed independently. The index pulses can be jumpered each to reset the counters in order to get spindle position information for threading (angle measurement).
Is it possible to integrate this very convenient card into EMC2? How can I make a HAL file for it, which is probably necessary, or where can I find information how to do this? Best regards Peter Blodow ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
