nw-rs / os

Rust operating system for the Numworks n0110 calculator.

NW OS

An operating system for the Numworks n0110 calculator written in Rust.

Currently WIP does not actually do anything and currently requires an STLink debugger to install because I do not have a working bootloader for external flash.

Setup

To setup the developement environment follow the instructions in rustworks/SETUP.md

STLink

If you have an STLink debugger (I am using the STLink V3SET) you can flash or debug using one of the following commands (note that this seems to write the data to internal flash which is not desireable as that only has 64KiB of space avaliable):

Flash

Specify the chip manually:

cargo flash --chip=stm32f730V8Tx

Let cargo-make specify the chip for you:

cargo make flash

Debug

Using cargo-embed (recommended):

cargo embed

Using probe-rs:

cargo run

DFU flash

Complete setup, install a DFU bootloader capable of writing to external flash (currently there are none available, nw-rs/bootloader is still WIP and doesn't work properly), plug in your calculator and put it into DFU mode (press 6 and the reset button on the back at the same time), then run the following command:

cargo make dfu