jerryscript/targets/arduino_101

About

This folder contains files to run JerryScript on Zephyr with Arduino 101 / Genuino 101

Zephyr project arduino 101 Zephyr Arduino 101

How to build

1. Preface

1, Directory structure

Assume harmony as the path to the projects to build. The folder tree related would look like this.

harmony
  + jerry
  |  + targets
  |      + arduino_101
  + zephyr

2, Target board

Assume Arduino 101 / Genuino 101 as the target board.

2. Prepare Zephyr

Follow this page to get the Zephyr source and configure the environment.

Follow "Building a Sample Application" and check that you can flash the Arduino 101

Remember to source the zephyr environment.

source zephyr-env.sh

export ZEPHYR_GCC_VARIANT=zephyr

export ZEPHYR_SDK_INSTALL_DIR=<sdk installation directory>

3. Build JerryScript for Zephyr

# assume you are in harmony folder
cd jerry
make -f ./targets/arduino_101/Makefile.arduino_101

This will generate the following libraries:

./build/arduino_101/librelease-cp_minimal.jerry-core.a
./build/arduino_101/librelease-cp_minimal.jerry-libm.lib.a
./build/arduino_101/librelease.external-cp_minimal-entry.a

The final Zephyr image will be located here:

./build/arduino_101/zephyr/zephyr.strip

5. Flashing

Details on how to flash the image can be found here: Flashing image

To be able to use this demo in hardware you will need the serial console which will be generating output to Pins 0 & 1

Some examples of building the software

make -f ./targets/arduino_101/Makefile.arduino_101 clean

• Not using a Jtag and having a factory stock Arduino 101.

make -f ./targets/arduino_101/Makefile.arduino_101 BOARD=arduino_101_factory 

Follow the Zephyr instructions to flash using the dfu-util command.

• Using JTAG

There is a helper function to flash using the JTAG and Flywatter2

make -f ./targets/arduino_101/Makefile.arduino_101 BOARD=arduino_101 flash

• Compiling and running with the emulator

make -f ./targets/arduino_101/Makefile.arduino_101 BOARD=qemu_x86 qemu

6. Serial terminal

Test command line in a serial terminal.

You should see something similar to this:

Jerry Compilation May 26 2016 13:37:50
js>

Run the example javascript command test function

js> test
Script [var test=0; for (t=100; t<1000; t++) test+=t; print ('Hi JS World! '+test);]
Hi JS World! 494550

Try more complex functions:

js>function hello(t){t=t*10;return t}; print("result"+hello(10.5));

Help will provide a list of commands

> help

This program, is built in top of the Zephyr command line, so there is a limit of 10 spaces.