Parallel port problems on new build; pins 14 and 16 not working for spindle

I put a 1k ohm pull up resistor on both pins 14 and 16; no luck. Any other suggestions?

pin14 is reserved to internal ENABLE of the 74hc that controls the stepdir 5axis

did you check if the JUMPER is set to use pin16/17 to as a output
if you have taken a Realy <1200ohm to the pin 14 you may have killed the board

does step dir work propper

@tommylight -- re: volt meter, I already did that; It dosn't show any activity on pins 14 and 16 when linuxcnc says that it is sending a signal. I'm pretty confident that the PMDX is working fine -- this setup worked great until I rebuilt the PC and switched to a new parallel port card. The only difference in the setup is the computer. I could still bench test it if you thought it would be useful.

@pl7i92 -- Step dir is working great; I have full x/y/z movement in the correct direction on the mill. I haven't used any relays at all on any of the outputs of the PMDX or parallel port. I'm using the PMDX-107 child board for spindle control, which is expecting the pin 14/16 signal.

Many thanks to all who have replied so far.

Have you tried setting the port to "in" or "X" modes and checked to see if those pins do anything?

I have a PCIe duel parallel port card that doesn't set all the internal pull-ups right in Linux (but it does in Windows) however with the right breakout board it still works ok.

the PMDX-107 is expecting a PWM signal
how did you wire your spindle system to the BOB

can you give us more infos

DIRECT does not work at all you need at least one Realy

the Spindle gots its own GND to use for FOR it way also got a ENA
and it got a Speed

can you show us a image or diagramm like i did here

Sorry, I was not clear, the router I am using the uncooperative PCIe board with uses neither a VFD or any PMDX boards. I have no experience with the PMDX stuff. I was just saying that it could be possible that the addition or removal of pull-up or pull-down resistors on the parallel port side of the breakout board may be helpful. But there is no guarantee that it may ever work.

Another test you could try. Load the parallel port tester in Linuxcnc for the port address in question. Jumper one of the problem output pins directly to an input pin. Does the input change when changing the output?

Good news: Problem fixed!

I tried another card: www.microcenter.com/product/419690/1-por...card-with-dos-driver. This one finally worked!

Thanks for all the help!

can you finaly check if the CADR is broken so we get a full feedback as you worked hard to fix it then changed the card