Pawpet

PawPet

A virtual pet using the atsamd21g and sharp memory lcd, runs off of 2xAAA for a couple of months. See PawPet on Hacakday.io for full gallery.

This is a rewrite in Rust of the original (and unfinished) arduino based code. That codebase is preserved at PawPet Arduino.

Simulator

A webasm simulator of the pawpet using wasm-pack.

This is not a cycle accurate emulator, it hooks the update/render functions to an html5 canvas and maps the core peripherals to web-asm compatible hooks.

1. Install the Rust SDK

2. Install wasm-pack (also avaiable via cargo install wasm-pack)

3. Run the build script

cd pawsim
scripts/build.ps1

index.html can then be live hosted from the pawsim\bin folder, see pawpet web simulator for a working web simulator.

Firmware Build Instructions

Windows

1. Install the Rust SDK

2. Run sdk-setup, which will setup the rust target dependencies

cd pawpet
tools/sdk-setup.ps1

3. Run build script

cd pawpet
tools/build.ps1

Linux

1. Install powershell (i'm sorry, I'll fix this soon)

2. Install the Rust SDK

3. Install linux dependencies (Ubuntu 20.04)

apt install build-essential libusb-dev libusb-1.0-0-dev libudev-dev pkg-config 

4. Run sdk-setup, which will setup the rust target dependencies

pwsh
cd pawpet
tools/sdk-setup.ps1

5. Run build script

pwsh
cd pawpet
tools/build.ps1

Bootloader Flashing

• TODO new hf2 bootloader that supports updating internal flash and extracting save files
• TODO have bootloader support fuse setting

1. disable boot prot fuses
2. flash bootloader generated by pawboot module
3. set boot brotection fuses to 16kb (bootprot fuse value 0x2)
4. disable BOD33 fuse

Updating Pawpet

• pawcon tool supports restarting the pawpet into update mode and flashing new content to its internal storage

Licensing

Code

All code is licensed under the MIT license.

Assets

All graphics, art, and 3d models are licensed under the Creative Commons Attribution-NonCommercial 4.0 International Public License.