Paul Sokolovsky
4091444016
- Add preliminary support for ARC architecture. Using "em_starterkit" board supported by Zephyr. Only build for this board is tested, not booted on a real device due to lack of access. There's no QEMU emulation support for ARC in Zephyr (yet) either. - Update README to cover different Zephyr architectures/boards. - Changed the arduino_101 paths to something more generic and adaptable - Made sure it compiles and runs on Arduino 101 JerryScript-DCO-1.0-Signed-off-by: Sergio Martinez sergio.martinez.rodriguez@intel.com JerryScript-DCO-1.0-Signed-off-by: Paul Sokolovsky paul.sokolovsky@linaro.org
152 lines
3.2 KiB
Markdown
152 lines
3.2 KiB
Markdown
### About
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This folder contains files to integrate JerryScript with Zephyr RTOS to
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run on a number of supported boards (like
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[Arduino 101 / Genuino 101](https://www.arduino.cc/en/Main/ArduinoBoard101),
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[Zephyr Arduino 101](https://www.zephyrproject.org/doc/board/arduino_101.html)).
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### How to build
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#### 1. Preface
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1. Directory structure
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Assume `harmony` as the path to the projects to build.
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The folder tree related would look like this.
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```
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harmony
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+ jerryscript
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| + targets
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| + zephyr
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+ zephyr
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```
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2. Target boards/emulations
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Following Zephyr boards were tested: qemu_x86, qemu_cortex_m3, arduino_101.
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#### 2. Prepare Zephyr
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Follow [this](https://www.zephyrproject.org/doc/getting_started/getting_started.html) page to get
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the Zephyr source and configure the environment.
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If you just start with Zephyr, you may want to follow "Building a Sample
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Application" section in the doc above and check that you can flash your
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target board.
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Remember to source the Zephyr environment:
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```
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source zephyr-env.sh
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export ZEPHYR_GCC_VARIANT=zephyr
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export ZEPHYR_SDK_INSTALL_DIR=<sdk installation directory>
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```
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#### 3. Build JerryScript for Zephyr
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The easiest way is to build and run on a QEMU emulator:
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For x86 architecture:
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```
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make -f ./targets/zephyr/Makefile.zephyr BOARD=qemu_x86 qemu
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```
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For ARM (Cortex-M) architecture:
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```
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make -f ./targets/zephyr/Makefile.zephyr BOARD=qemu_cortex_m3 qemu
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```
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#### 4. Build for Arduino 101
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```
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# assume you are in harmony folder
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cd jerry
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make -f ./targets/zephyr/Makefile.zephyr BOARD=arduino_101
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```
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This will generate the following libraries:
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```
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./build/arduino_101/librelease-cp_minimal.jerry-core.a
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./build/arduino_101/librelease-cp_minimal.jerry-libm.lib.a
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./build/arduino_101/librelease.external-cp_minimal-entry.a
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```
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The final Zephyr image will be located here:
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```
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./build/arduino_101/zephyr/zephyr.strip
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```
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#### 5. Flashing
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Details on how to flash the image can be found here:
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[Flashing image](https://www.zephyrproject.org/doc/board/arduino_101.html)
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(or similar page for other supported boards).
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To be able to use this demo in hardware you will need the serial console
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which will be generating output to Pins 0 & 1
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Some examples of building the software
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```
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make -f ./targets/zephyr/Makefile.zephyr clean
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```
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- Not using a Jtag and having a factory stock Arduino 101.
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```
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make -f ./targets/zephyr/Makefile.zephyr BOARD=arduino_101_factory
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```
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Follow the Zephyr instructions to flash using the dfu-util command.
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- Using JTAG
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There is a helper function to flash using the JTAG and Flywatter2
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```
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make -f ./targets/zephyr/Makefile.zephyr BOARD=arduino_101 flash
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```
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#### 6. Serial terminal
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Test command line in a serial terminal.
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You should see something similar to this:
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```
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Jerry Compilation May 26 2016 13:37:50
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js>
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```
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Run the example javascript command test function
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```
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js> test
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Script [var test=0; for (t=100; t<1000; t++) test+=t; print ('Hi JS World! '+test);]
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Hi JS World! 494550
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```
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Try more complex functions:
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```
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js>function hello(t){t=t*10;return t}; print("result"+hello(10.5));
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```
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Help will provide a list of commands
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```
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> help
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```
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This program, is built in top of the Zephyr command line, so there is a limit of 10 spaces.
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