I got the 25pin DSUB female to female cable in yesterday evening. Wanted to go ahead and test it as I was wondering if I got my wiring right on the connector. Well, yes and no.
So, it would not work via the DB25 connector at all. checked my schematic and all is good, figured it was the cable that it was not truly a straight through cable. Well, it was, needless to say I was perplexed for a few minutes.
I always do something before I send my boards off to be tooled, but this time I did not on the DB25 connector. I got the library from mouser, and I have never had this happen with mouser. So, this is a first time for them.
Well needless to say, whoever designed their library for the DB25 PCB connector got it wrong! They actually mirrored it, so the footprint is actually for a DB25 male although the part is female! So, everything is exactly opposite of what i need it to be.
Good thing for prototype testing!
lesson learned, will always check no matter what now..
Now I have a female to male DB25 cable coming in tomorrow. Thought I had a DB25 male to male gender changer that would change the pinout to a female, but nope, it's a 50 pin.
I will continue my testing for other aspects though.
Thanks mouser!