The following patch adds support to Migen for the fully open-source IceStorm FPGA workflow, including yosys, arachne-pnr, and icepack.
The following features are implemented but have tested (both should work fine): 1. Unix script generation. 2. Multiple verilog files. Unlike other backends, sourcing is not implemented; it is assumed that the Icestorm tools will be on your system path. Because of limitations in Arachne PNR, only pin constraint assignment is currently supported. As the toolchain matures, I will add additional directives to the constraint file. Pending approval of this patch, I will add support for the Lattice IceStick board. William D. Jones (1): migen/build: Add Icestorm toolchain. migen/build/lattice/icestorm.py | 126 ++++++++++++++++++++++++++++++++++++++ migen/build/lattice/platform.py | 5 +- migen/build/lattice/programmer.py | 7 +++ 3 files changed, 137 insertions(+), 1 deletion(-) create mode 100644 migen/build/lattice/icestorm.py -- 2.6.3 _______________________________________________ M-Labs devel mailing list https://ssl.serverraum.org/lists/listinfo/devel
