Yet another LinuxCNC noob with a PCI card as Port1 issue.

Will do. Wont be able to get them for a while now as it i just after midnight here. Expect them before this time tomorrow.

I get it. (regarding the txt files)

I have the machine temp hooked up via ethernet so perhaps I can direct post them to the forum.

I have measured at end of the cable previously and got no output there either. However I will try again at the port. I have confirmed by swapping the BOB is good. But I will test at the port.

Thanks.

No worries mate, you not is Sydney are you ?
There's a couple of us here.

Wollongong. Not too far!

If it get's real bad I'd be happy to have a look if you can travel to Sydney.

That's a very nice offer. I'll see how we go with troubleshooting. I still feel like I am doing something dumb.

Can you helpful people answer a noob question for me. Are all parallel/DB25 cables straight through? or do they flip? I am a little young to have used they for printers of modems back in the day. My understanding was a null modem cable is the one with the flip and others were straight through.

I purchased two cables for my CNC for Aliexpress the They were meant to be one male end and one female end. However they sent me the wrong cable for one of them it was female both ends. This incorrect cable is what I am using for this Breakout board from the PCI card. I soldered two DB25 male plugs back to back to make a gender changer.  I have used my multimetre's continuity on the cable and it appears to go straight through. 

Would this potentially be an issue?  The other male female cable works perfectly correctly.  As it is currently it is very difficult to undo the cable for the built in port on the motherboard so I haven't physically switched the cables over.  I have tested at the end of the cable and found no voltage changes at one stage even going pin by pin.  However this was when I was still battling the HAL file settings it is possible I had something incorrect there also. 

I suppose testing at the port will very quicky clear up if that is the issue. 

We might have a bad cable lads.

I made up this connected to 13 12 11 directly on the card.

And using the port test app on 0xec00 with the sun1888 installed the ports go to ground when touched to the chassis

this does not happen when the same home made plug is connected at the end of the cable.

Something is screwed up with the cable for sure if it should be straight through 

Does the cable go one to one all 25 pins, they might have sent a serial cable.

Sometimes you just have to bite the bullet and get the PC onto a workbench, no matter how much of a PITA it is.

yes the cable goes one to one for every pin. I re-tested it tonight confirmed all pins go straight through. Is this normal? As far as I know it should be? Serial cables should flip Rx to Tx as far as I'm aware.

yeah the way it is setup at the moment The PC is on a hinge under the table of the CNC and swings down for service. This means I can use the space under the table to store things. The box with power supplies and breakouts also swings down.

However the pc and the power supply box are very close together on the IO side of the PC and as the CNC machine is half finished I cant lock the power supply box out of the way(I will be able to do this when its done). It impacts my ability to work on the PC . I can detach the PC but it is a massive pain and I theory I shouldn't need to. I have already done a motherboard swap with the PC in it's service position without issue.

Obviously It did impact my ability to troubleshoot. if I just swapped the cables all would have been solved. I swapped everything else I didn't expect that a cable that I had tested for continuity was an issue.