On Thu, 4 Dec 2008, Eric H. Johnson wrote: > Date: Thu, 4 Dec 2008 22:56:04 -0500 > From: Eric H. Johnson <[EMAIL PROTECTED]> > Reply-To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > To: "'Enhanced Machine Controller (EMC)'" <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] Write error with hostmot2 and 7i43 board > > Peter, > >>> What EPP mode are you using and what type and length of cable do you have > between the 7I43 and Parallel port? << > > The available parallel port modes in the BIOS are Output only, > Bi-directional, EPP and ECP. It is set to EPP, but I do not see a further > selection for mode of EPP. I think we determined previously that it was > version 1.9.
Newer bitfiles will only work with 1.9 so that seems correct > > The cable was fairly hard to find, I got it here: > http://www.sealevel.com/product_detail.asp?product_id=732&26%2DPin%5FIDC%5Ft > o%5FDB25%5FCable%5F > > It is 8" long and I previously rang it out. > >>> What type of paralle port do you have (motherboard/PCI add-in) << > > The parallel port is straight from the mother board. This is the motherboard > I am using: > http://www.mini-box.com/Intel-D945GCLF2-Mini-ITX-Motherboard?sc=8&category=1 > 00 > >>> Is the iteration count always the same? << > > No. Running it again I got an iteration count of 30865. > >>> I dont know if it would be caught by software checking but ISTR the 7I43 > cannot use a base thread (EPP operations need to be atomic) so a 7I43 HAL > should only normally only use a Servo thread << > > I am using the servo-thread for read and write. I also tried slowing down > the servo thread, although I could try slowing it down more. I was using 1ms > (1000000). 1 ms should be fine (I think 100Usec is the approximate read+write time) I guess we'll have to wait for Sebastian to tell us what TRAM write error means for EPP. With only a 8" cable I would not expect EPP errors especially with a motherboard port. If its turns out to be a hardware interface problem, I can send you some FPGA files with different EPP timing to try. > > Regards, > Eric > > > > ------------------------------------------------------------------------------ > SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. > The future of the web can't happen without you. Join us at MIX09 to help > pave the way to the Next Web now. Learn more and register at > http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
