> > I am using the hostmot2 driver with ethernet and sometimes startup does not > > work properly. Then investegating further with wireshark I found that some > > packets seems to not be received correctly. I also found time between > > packages are very small at startup because they are sent as fast as the > > computer while during operation there is a fixed time between packets. > > > > Have anyone else had similar problems? > > > Are you running 2.7.0? > > Jeff Epler fixed some random startup issues with hm2_eth fairly recently > these are fixed in the released version 2.7.0 > > > Also if this is with your remote hardware (not Mesa FPGA hardware), there may > be possible data loss with all the write only initialization data sent at > startup with no checking for possible buffer overflows. This is pretty well > masked with our hardware since its pretty fast and has a 12K byte receive > packet buffer in the Ethernet chip.
My remote hardware had problem and then increasing the buffer size problem decreased considerably. Wireshark show 12 packets in a row with around 7µs between each in average. I am pretty sure it have happened in the direction to but not totally. It is not a big problem since only happens during startup then quite many packets are sent in a row for configuration during normal running packets are only sent with servo thread period. ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
