The SuperCart Rev.B board (16K to 256K with SARA support), has been finalized and submitted to the PCB manufacturer (you can thank ‘theloon’ from AtariAge for that). Super-banking (0880) is confirmed working without SARA, but PLD code for traditional F8/F6/etc. access has also been done and extended to 256K. Here is a quick PCB capture of the design that is now being built (black PCB’s, vs. Rev.A purple). 🙂
