Poly94 computing platform

Connecting ULX3S

You need to connect to USB1 (US1) connector to the host computer in order to program the board.

Development environment

Highly recommended to use the YosysHQ OSS CAD Suite. It includes all of the necessary tools (and many more):

• Yosys
• nextpnr-ecp5
• Verilator
• Icarus Verilog
• Python & cocotb

Build and program bitstream

make ulx3s.bit    # (optional)
make prog

Testing

# Verilator (currently not working with SDRAM model)
make sim

# Verilator with options
BOOTROM=firmware/build/test_framebuffer.bin DUMP_FRAMEBUF=framebuffer.ppm NUM_CYCLES=4000000 make sim

# cocotb
make -f Makefile.coco