This repository represents my attempt at getting started with simple OS development in rust Targeted architecture is a NEORV32 soft-core CPU running on a Basys3 dev board.

1. cd fpga/vivado/
2. vivado -mode batch -source create_prj.tcl
3. vivado -mode batch -source build.tcl
4. Plug in basys3 baord to host PC
5. vivado -mode batch -source prog_flash.tcl

1. cd to the top level project directory
2. cp -r rustos/ fpga/lib/neorv32/sw/example/
3. cd fpga/lib/neorv32/sw/example/
4. make all
5. follow the steps outlined here https://stnolting.github.io/neorv32/ug/#_uploading_and_starting_of_a_binary_executable_image_via_uart to upload and execute the binary on the device.

Update the values of the constants in this file: rustos/fpga/vivado/version.tcl

These values will only be applied to the build if the build script is run. Manual builds done using the vivado gui will show a version of 0.0.0.

1. Update this file: rustos/fpga/regs/examp_regs.rdl
2. cd rustos/fpga/regs/
3. ./generate.sh to regenerate the VHDL source code and associated documentation.