joaquimorg / MY-Time

MY-Time is a firmware for Pinetime that is lightweight.

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PineTime smartwatch

The Pinetime smartwatch is built around the NRF52832 MCU (512KB Flash, 64KB RAM), a 240*240 LCD display driven by the ST7789 controller, an accelerometer, a heart rate sensor, and a vibration motor.

The PineTime is a free and open source smartwatch capable of running custom-built open operating systems. Some of the notable features include a heart rate monitor, a week-long battery, and a capacitive touch IPS display that is legible in direct sunlight. It is a fully community driven side-project which anyone can contribute to, allowing you to keep control of your device.

https://www.pine64.org/pinetime/

https://wiki.pine64.org/index.php/PineTime

MY-Time

The purpose of MY-Time is to build a firmware for Pinetime that is lightweight:

• Code written in C++;
• Build system based on CMake and Ninja;
• Using FreeRTOS 10.0.0 real-time OS;
• Arduino Core for Adafruit Bluefruit nRF52 Boards
• UI library LVGL 8;
• Bluetooth Nordic Softdevice S112 nrf52 6.1.1 softdevice;

Build and flash MY-Time

• https://www.nordicsemi.com/Products/Development-tools/nRF-Util
• https://developer.arm.com/-/media/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-x86_64-linux.tar.bz2
• python
  • pip install intelhex

$ sudo apt install build-essential
$ wget https://developer.arm.com/-/media/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-x86_64-linux.tar.bz2
$ sudo tar xjf gcc-arm-none-eabi-10.3-2021.10-x86_64-linux.tar.bz2 -C /usr/share
$ sudo apt install ninja-build
$ sudo apt install cmake
$ pip install nrfutil

$ git clone --recurse-submodules https://github.com/joaquimorg/MY-Time.git
$ cd MY-Time
$ mkdir build
$ cmake -S . -B "build" -G "Ninja" -DCMAKE_BUILD_TYPE=Release -DARM_NONE_EABI_TOOLCHAIN_PATH=/usr/share/gcc-arm-none-eabi-10.3-2021.10

$ cmake --build build

$ cmake --build build --target #COMMANDS#

#COMMANDS#
- FLASH_ERASE
- FLASH_SOFTDEVICE
- MAKE_BOOT
- MAKE_PKG
- MAKE_PKG_OLD
- MAKE_BOOT_PKG
- FLASH_ALL
- FLASH_APP


WSL Windows build fix
$ sudo nano/etc/wsl.conf
[automount]
options = "metadata"

Docs

Web Bluetooth Secure DFU : https://thegecko.github.io/web-bluetooth-dfu/examples/web.html

Nordic's Secure DFU bootloader, a step by step guide

https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/getting-started-with-nordics-secure-dfu-bootloader