Hi,
I have a Tick too - have you ever got yours working? We should compare notes. Were you there in Hebden Bridge when our table collapsed, scattering soldering irons and components everywhere?
I haven't done anything with it since I got back from OSHCamp2024 but it did sit on the bench until January when I made a project box for it as I was tidying up.
I remember the table collapsing! I was on a different table tho'.
I sat with Ken on the Friday or Saturday evening in the hostel and he showed me his simulations: the ones that are available on Github. I remember there being some subtlety to the design but I think we can finish it! I'd love to collaborate but probably rather slowly.
As for debugging, I've got a few options, but I ordered one of these earlier this week:
https://www.elektor.com/products/labnation-smartscope-usb-oscilloscope
It's the LabNation SmartScope. It's quite old now but they have a good deal on it, the specs are good for the price and it does have very good Open Source credentials.