Intel

The nmigen.vendor.intel module provides a base platform to support Intel toolchains.

The Quartus and Mistral toolchains are supported.

class nmigen.vendor.intel.IntelPlatform(*, toolchain='Quartus')

Quartus toolchain

Required tools:

• quartus_map

• quartus_fit

• quartus_asm

• quartus_sta

The environment is populated by running the script specified in the environment variable NMIGEN_ENV_Quartus, if present.

Available overrides:

• add_settings: inserts commands at the end of the QSF file.

• add_constraints: inserts commands at the end of the SDC file.

• nproc: sets the number of cores used by all tools.

• quartus_map_opts: adds extra options for quartus_map.

• quartus_fit_opts: adds extra options for quartus_fit.

• quartus_asm_opts: adds extra options for quartus_asm.

• quartus_sta_opts: adds extra options for quartus_sta.

Build products:

• *.rpt: toolchain reports.

• {{name}}.sof: bitstream as SRAM object file.

• {{name}}.rbf: bitstream as raw binary file.

Mistral toolchain

Required tools:

• yosys

• nextpnr-mistral

The environment is populated by running the script specified in the environment variable NMIGEN_ENV_Mistral, if present.

• verbose: enables logging of informational messages to standard error.

• read_verilog_opts: adds options for read_verilog Yosys command.

• synth_opts: adds options for synth_intel_alm Yosys command.

• script_after_read: inserts commands after read_ilang in Yosys script.

• script_after_synth: inserts commands after synth_intel_alm in Yosys script.

• yosys_opts: adds extra options for yosys.

• nextpnr_opts: adds extra options for nextpnr-mistral.