Wondering about "LatticeMico32 Open Source Licensing"

site

Uwe,

please read Lattice main License, Appendix C

it clearly says ALL FILES GENERATED by Mico32 tools are subject to the open-source licensing, so it over-rides whatever is prefixed into the hdl source code.

you can distribute those files under open-source license, also if modfied and you can distribute you own addons under any license you want

and there is no vendor locking to Lattice, the stuff under lattice opensource license can be implemented for ANY FPGA or ASIC

this is how i read it,

Antti PS there is DDR2 IP Core mico32 so you can use it on Spartan3A starter board :)

If you look at ttp://

you will see the DDR1/DDR2/Tri-Speed MAC/PCI Target 33HHz marked with a star, meaning a seperate license. The verilog directories for these peripherals deployed by the installation also seems to contain only wrappers around EDK specific modules not provided and probably contain a lot of lattice part specific code.

Anyways, looking at the other directories, there only contain few Lattice specific primitives, like IO Buffer, BRAM and FIFO, where it should be not to hard to write wrappers that resolve into other vendors primitives.However Icarus verilog still has some problems withe the present Lattice code. Hopefully stephen, cary and Larry wil care.

Didn't run XST on some directory neither...

ttp://

i did not notice the * but a) if you are student you can use the time limited version b) for commercial use you just need pay license and that it

work well so or so

ah, if you want mico32 with DDR2 on Xilinx? well, you dont expect Lattice to offer that?

as of mico32 with XST, I did that LOOOOONG ago it did take maybe some hour of tweaking. XST doesnt support verilog good enough to synthesize mico32 code

Antti

What is the problem?

Cheers, Jon

They've only had 7 years to implement Verilog 2001 after all. How hard can it be?

Cheers, Jon