boboche

Speaking of true amiga experience, one thing I can’t seem to find are 8520 CIA chips for my A500 and A2000. I’m surprised no one ever made an fpga replacement for those chips or those amiga patent holders never cared to do another fab run. Fabs are much cheaper now and considering how many active amiga project there are right now, I’m sure there would be a good market for that, instead of wasting good boards just for prying out chips. If anyone has any insight about that, I’m sure a lot of amgians here would like to know!

herio
I don't think you will see new custom chips made to match those chips, however they are small enough to be easy to implement in a modern CPLD/FPGA.

I know of three such projects at the moment:

J-CIA: https://1nt3r.net/j-cia/

FBI: https://www.forum64.de/index.php?thread/84273-wip-fbi-als-er...

VHDL6526: https://github.com/bwack/VHDL6526

The 6526 CIA from the C64/128 is almost identical to the 8520 from the Amiga, the only difference is in the time-of-day clock registers. The 6526 uses BCD encoded TOD, the Amiga 8520 counts seconds since midnight.