@Tim Edwards I've just started doing some tests on a few mpw3 chips (I'm part to Matt Venn multi-project design). I wanted to test your fast calibration script. I found this message with a link to it: https://open-source-silicon.slack.com/archives/C03UVJCTR8U/p1678889381349529?thread_ts=1678831955.508829&cid=C03UVJCTR8U I wanted to know if that was the correct one, and if I can use it with mpw-3

Yes, that should be the right code and should work on MPW-3 chips. If you have any problems with it or need any additional information, just let me know.

thank you both

I don't seem to get the same results with the fast calibration than with the standard one. The standard one also seems to be more stable. Getting always the same results except once in a while that for some reason starts to fail on some pin. With the fast calibration I'm getting some small variation between two values, and what is more strange is that I get the same results for different chips I might be doing something wrong

I may be a bit late to the party, but I have the exact same problem. Just tested 8 chips (MPW-2, but I guess this should not matter, since the HTV's are the same) and all have the same pattern when using the fast calibration and completely different patterns when using the slow calibration. Is this an intended behavior or is fast calibration not working correctly? Or could I be doing something wrong? Any help would be greatly appreciated since such a short test would be quite useful when testing multiple chips.