I have some scope traces from LinuxCNC's pump below. I haven't had time to add text to the pictures yet but I'll try to describe them in this message for now. The group of pictures is here: http://wallacecompany.com/machine_shop/G540/
------------ Motherboard port, set to SPP in BIOS: http://wallacecompany.com/machine_shop/G540/g540_mb_spp.jpg one trace is at 0 V, vertical divisions are 1 V per div., green LED OFF ------------ Motherboard port, set to EPP in BIOS: http://wallacecompany.com/machine_shop/G540/g540_mb_epp.jpg green LED ON ------------ Rosewill PCI card, set to SPP and EPP, I get the same trace either way: http://wallacecompany.com/machine_shop/G540/g540_rw_sepp.jpg green LED OFF ------------ Rosewill PCI card, with 1k Ohm pull-up: http://wallacecompany.com/machine_shop/G540/g540_rw_1kpup.jpg green LED ON ------------ Startech PCI card, set to SPP: http://wallacecompany.com/machine_shop/G540/g540_st_spp.jpg green LED OFF ------------ Startech PCI card, set to EPP: http://wallacecompany.com/machine_shop/G540/g540_st_epp.jpg swings all the way to 5 V, green LED ON ------------ SIIG PCI card, set to SPP and EPP, I get the same trace either way: http://wallacecompany.com/machine_shop/G540/g540_siig_spp.jpg just enough to turn green LED ON ------------ SIIG PCI card, with 330 Ohm pull-up, set to SPP and EPP, I get the same trace either way: http://wallacecompany.com/machine_shop/G540/g540_siig_k33pup.jpg green LED ON ------------ Horizontal divisions are 50 microseconds/div. One cycle is 4 div. or 20kHZ (?) (base-thread = 100000ns, with reset = 1000). -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
