[Oberon] Large Displays / 64 bit...
greim at schleibinger.com
Thu Jun 19 12:35:31 CEST 2014
each enhancement of the emulator should keep the existing FPGA RISC
processor in mind!
Otherwise we are opening the next fork of the fork of the fork...
I am just trying to port the Spartan 3 design with static RAM to a
Spartan 6 with dynamic SDRAM. Thats because Spartan 3 is at the end of
lifetime and all newer reference designs of Xilinx (and all the open or
cheap boards are following this reference designs) are using SDRam (or
better said, one special chip, the MT48 from Micron).
Regarding the SDRAM refreshing etc. i fear it will be hard to realize a
much bigger resolution then the actual one.
64 bit could be possible with Spartan-6 but not with Spartan-3.
But is this really necessary?
I am not sure how the actual situation is, but for me, on the software
side, a smooth out of the box boot image generator, based on the
emulator, would be more important. Also a tool writing the Oberon File
system directly to a SD-Card and a real PC-Link using the RS232
RISC<->PC would be nice to have, as a stable, easy to use infrastructure.
Also the license situation is not finally clarified!
(Maybe because the ETHZ is realizing similar things in cooperation with M$)
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