@PaulJ Thanks for the reminder - I've had the cable working between the same PC & a different ST via GhostLink (and a Falcon without the 9<->25 way adaptor) so it should be ok.PaulJ wrote: ↑Mon May 04, 2020 8:33 pm If you use 2 ST's transmit and recieve are on the same pins so you need to make sure pin 2 & 3 get swapped on one end so t->r and r->t. Try a cable on known good st's to make sure cable works. I'm sure you know but sometimes one just assumes the cable is right.
I will try it on the laptop & if I'm still having trouble, I will put the DiagROMs in a working ST & check what they do.
It almost always seems that it's setting up the system to test that takes more time than the testing & diagnosing...but we will see if I can prove myself wrong with this!
If it doesn't just work with the laptop I will have to leave it until tomorrow evening/night