#VSCode Arduino 101 Starter Project for Zephyr

This is a skeleton project to use when writing applications for the Arduino 101 using the Zephyr RTOS. It has settings inside the .vscode directory that allows Visual Studio Code to clean/build/debug the project. It was implemented on a mac so only mac settings are included. Linux should not be too different though. Check the files inside .vscode for more information.

It requires the C/C++ Extension for VS Code, you can install it from the command palette like so:

ext install cpptools

The following tasks are available once you open the directory containing the project (hopefully the names are self-explanatory):

• clean
• build
• deploy
• x86_debug_server (this one starts the openocd debug server for x86 that you can attach GDB to)
• arc_debug_server (this one starts the openocd debug server for arc that you can attach GDB to)

The following launch configurations are also available:

• Debug x86 (for debugging the x86 core)
• Debug Arc (for debugging the arc code)

The project is split into an x86 and an arc area where you can put the code you want to run on each core.

NOTE It assumes that you have a volume called /Volumes/CrossToolNG that contains zephyr and arc-elf32 sub-directories containing the zephyr project kernel source and version 1.6.4+1.0 of the ARC tools. It also presumes that openocd is installed at /usr/local/share/openocd. Take a look in .vscode/tasks.json, .vscode/launch.json and .vscode/c_cpp_properties.json if any of this is not true and tweak accordingly.

##Further Information

Getting the Zephyr project to work properly on the mac takes a bit of fiddling, I have made a few gists of notes that may help:

• Building Zephyr OS on Mac
• Compiling an Application on Zephyr OS for Arduino 101 on the MAC
• Notes on Flashing a Zephyr Image using a JTAG Adapter on MAC

##Example Application Details

The example application uses the arc and x86 cores to blink two LEDs. The red one is controlled by the x86 core and the green by the arc core. The red is connected to pin IO8 and green to pin A0.

Components Required:

• 3 x Jumper Wire
• 2 x LED
• 2 x 220 ohm Resistor

###Circuit

Following is details of the circuit. The fritzing format file can be found at circuit/double_led.fzz.

####Breadboard

####Schematic