RTL m68k

Is there a "soft core" m68k for FPGAs?

Haveing the cpu in vhdl/verilog would allow to eliminate the need for a special Minimig board. And being able to use plain developer boards from Xilinx or other manufactors.

Have you seen the discussion at Open Cores?

The most finished 68000 in VHDL I know of is from the Atari ST in VHDL: Suska project : 68000 IP v2K7A

Would it make any sense to replace the "FPGA chip + CPU chip" on the current Minimig, with a single-chip "FPGA + CPU chip" device? --DavidCary 21:28, 28 July 2007 (PDT)

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TobiFlex 070826 13:39
This CPU Core is not finish. The Debuging must go on. Currently hangs up this CPU Core with Kickstartrom 2.04 at #$F81914.

TobiFlex 070826 14:06
I have adapted the minimig Core to the DE2 Board from Terasic with a ALTERA Cyclone 2C35. With an external CPU MC68HC000 runs the Minimig perfekt. I have change the RAM Timing from SRAM to SDRAM - so i can use the on Board SDRAM Chip. And now i use the Board to Debug Wolfgangs 68K Core.

mongo 070826 20:25
Wolfgang's 68K core will run up to about 17 MHz in a Spartan 3.

jkonstan 070826 21:23
external CBT16245 level shifters