Synthesis NIOS II source files by Leonardo

Altera_Forum · ‎10-19-2004

Hi,

did you synthesis nios II source files by Leonardo Spectrum?

I wasn't succesfull.

Synthesis command "do_ip" caused this error

"C:/work/projects/test/cls_kit_00/src/ni2.all/cpu.vhd",line 383: Error, unknown identifier: cpu_ociram_lpm_dram_bdp_component_lpm_file.

Error in file C:/work/projects/test/cls_kit_00/src/ni2.all/cpu.vhd.

-- Error found in VHDL source

The same source files Quartus II work up properly.

Could you point me whats wrong?

Thanks

Jan

Altera_Forum · ‎10-19-2004

Nios II is synthesizable using Quartus II only, sorry!

...there are a lot of reasons for this. Originally Nios I was synthesized with Leonardo. A couple of years ago Quartus native synthesis was greatly improved and we got the same (if not better results) using Quartus. This continues with Nios-II today, which has been hand-optimized in many ways to target Altera devices & use the Quartus II native synthesis.

Please note that you can synthesize your own logic using Leonardo, for example if you create a custom peripheral or custom instruction and import it into your SOPC Builder system, the relevant wizards allow you to import a netlist.