So it is looking like the external resisters some how become disconnected when you swap out the operating system? Interesting?
No, seriously, the hard part about debugging is that all the documentation describe the INTENDED design and the way things SHOULD work. The first step in debugging is to realized that "This is Impossible. It can't be happening" The resisters reacting to which OS is running? Impossible, I think. Last time I had to debug a 3D printer controler board I looked at the volts output by a microcontroller pin and said "that's impossible, I set it to "1" but I see a zero. Worse I set four pins to go up/down/up/down all together at about 1Hz and only 3 of them moved. "Impossible? Not if there is a solder defect on the PCB that grounded a pin and cause it to "blow". I think when you find something that is identifiablely impossible you are 60% of the way fixing it. On Wed, Oct 31, 2018 at 4:09 PM bari <[email protected]> wrote: > I just looked at the manual for the Moschip 9865 and there isn't any > mention of software select for the LPT signal pullups. It doesn't even > mention any being internally available. > > Looking at the reference schematic they show that external 4.7K ohm > resistors are to be used on all the LPT pins including 33 ohm series > resistors. > > I didn't see anything in the Moschip Linux driver source at the asix.com > website about the pullups. > https://www.asix.com.tw/products.php?op=pItemdetail&PItemID=125;74;111 > > > On 10/31/2018 05:12 PM, Chris Albertson wrote: > > On Wed, Oct 31, 2018 at 1:46 PM Todd Zuercher <[email protected]> > wrote: > > > >> Gene, > >> > >> My problem isn't the breakout board per say. It is that this wonky PCIe > >> parallel port card isn't pulling up the input pins in Linux (it does in > >> Windows). > > > > If it works in Windows it's obviously a software problem. You need to > > look a the source code for the paraport driver in Linux. > > > > Try looking in the /proc/sys/dev/parport..... file system. If you > drill > > down you can see the list of modes the kernal THINKs the port suports. > It > > might be the Kernal thinks the one you need is not suported. The fix for > > this would go the driver. But is your Kernal up to date, you don't want > to > > fix something that was allready fixed some months or years ago. > > > > Did the card need a special driver install in Windows? If so then it > > mi=ust be non-standard. > > > > > > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
