The revived 2013 re-issue of Niklaus Wirth's Oberon system is a joy to behold. If
you've never heard of Oberon before, it is a minimalistic education-oriented language
and operating system designed after Wirth had taken a (second) sabattical at PARC in the
80's.
The new version runs on a custom RISC processor, implemented in an FPGA, instead of the
NS3032 in the orginal Ceres workstations. Originally, it required a Digilent
"Spartan 3 Starter Kit" with a custom-built daughterboard providing a few
additional connectors. This board is no longer made, however, and no other FPGA
development board appears to provide the 32-bit wide fast SRAM the Oberon CPU required.
Recently, a new board, the OberonStation, has come onto the market that was designed
specifically for Oberon, and will boot up Oberon 2013 out of the box. It also looks like
an excellent platform for other retro-style FPGA CPU designs that want to stay away from
complex SDRAM controllers and the caches they like to feed.
My OberonStation arrived a couple of days ago, and it's really amazing to see what
can be done with a hardware and software stack that is small enough to actually read and
understand.
https://www.inf.ethz.ch/personal/wirth/
Do you have 5 volt I/O with the OberonStaion FPGA?
I was thinking of using it as general FPGA card.
Ben.