On Sat, 2007-12-15 at 10:32 -0800, Kirk Wallace wrote: > On Fri, 2007-12-14 at 23:29 -0500, Stephen Wille Padnos wrote: > > Hi Kirk > > > > Your fast period is way too fast to do a PPMC read/write. > > > > The PPMC update is meant to run in the servo thread, which might be 1-2 > > KHz. The read function has to write several control bytes to the > > parport, then read 12 bytes for the 4 encoder registers, plus other > > data. That will take you well beyond the 20 us base period in the HAL file. > > > > - Steve > > Steve - I put a gold star by your name. The Bridgeport VCP is usable > now. I posted the latest files: > > http://www.wallacecompany.com/machine_shop/bridgeport/pyvcp-dro2-bp2.hal > http://www.wallacecompany.com/machine_shop/bridgeport/pyvcp-dro2-bp2.hal > > I still have the <scale><halpin> problem but spinbox is working. I found > that if I click the data entry box, from that point on, the up down > arrows ramp the numbers. It's pretty handy. > > The X axis encoder polarity happened to be wrong, so I changed the > ppmc.0.encoder.00.scale to a negative value, but that didn't fix it. I > could switch the A and B wires, but I thought the encoder scale should > have. I need to look into this a little more.
Opps. I entered the encoder scale settings twice. > For anyone wanting to play with pyVCP, I found these pages helpful: > > http://www.linuxcnc.org/docs/html/hal_vcp.html > http://www.pythonware.com/library/tkinter/introduction/tkinter-reference.htm > http://developer.mozilla.org/en/docs/XUL:hbox > http://developer.mozilla.org/en/docs/XUL_Tutorial:The_Box_Model > > I haven't been able to get a few things like the flex option to work > yet, so I am wondering if pyVCP has a full implementation of XUL or > Tkinter. From: http://www.linuxcnc.org/docs/html/hal_vcp.html#r1_5_3 It says: " Inside a Hbox, you can use the <boxfill fill=""/>, <boxanchor anchor=""/>, and <boxexpand expand=""/>tags to choose how items in the box behave when the window is resized. For details of how fill, anchor, and expand behave, refer to the Tk pack manual page, pack(3tk). By default, fill='y', anchor='center', expand='yes'. " It's amazing what ends up in the documentation. > It sure is fun to be able to customize the display, but I guess I need > to get some real work done. > > (I have an "extra" wire on my Accurite linear scales, does anyone know > if linear scales normally have an index?) -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending) ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
