About
This folder contains files to run JerryScript on NuttX with STM32F4-Discovery with BB
How to build
1. Preface
1, Directory structure
Assume harmony as the root folder to the projects to build.
The folder tree related would look like this.
harmony
+ jerryscript
| + targets
| + nuttx-stm32f4
+ nuttx
| + nuttx
| + lib
+ st-link
2, Target board
Assume STM32F4-Discovery with BB as the target board.
3, Micro SD-Card memory for Script source files
2. Prepare NuttX
Follow this page to get
NuttX source and do the first build. When it stops with and error,
change default project from IoT.js to JerryScript as follows;
2-1) run menuconfig
# assume you are in nuttx folder where .config exist
make menuconfig
2-2) Select Application Configuration --> Interpreters
2-3) Check [*] JerryScript interpreter (Move cursor to the line and press Space)
2-4) < Exit > once on the bottom of the sceen (Press Right arrow and Enter)
2-5) Select System Libraries and NSH Add-Ons
2-6) Un-Check [ ] iotjs program (Move cursor to the line and press Space)
2-7) < Exit > till menuconfig ends. Save new configugation when asked.
2-7) make again
make
It'll show the last error but it's ok. Nows the time to build JerryScript.
3. Build JerryScript for NuttX
# assume you are in harmony folder
cd jerryscript
make -f ./targets/nuttx-stm32f4/Makefile.nuttx
If you have NuttX at another path than described above, you can give the
absolute path with NUTTX variable , for example,
NUTTX=/home/user/work/nuttx make -f ./targets/nuttx-stm32f4/Makefile.nuttx
Make will copy three library files to nuttx/nuttx/lib folder
libjerryentry.a
libjerrycore.a
libfdlibm.a
In NuttX, if you run make clean, above library files are also removed so you
may have to build JerryScript again.
4. Continue build NuttX
# asssume you are in harmony folder
cd nuttx/nuttx
make
5. Flashing
Connect Mini-USB for power supply and connect Micro-USB for NSH console.
Please refer this
link to prepare stlink utility.
To flash with Makefile.nuttx,
# assume you are in jerryscript folder
make -f ./targets/nuttx-stm32f4/Makefile.nuttx flash
6. Cleaning
To clean the build result,
make -f ./targets/nuttx-stm32f4/Makefile.nuttx clean
Running JerryScript
Prepare a micro SD-card and prepare hello.js like this in the root directory of SD-card.
print("Hello JerryScript!");
Power Off(unplug both USB cables), plug the memory card to BB, and power on again.
You can use minicom for terminal program, or any other you may like, but match
baud rate to 115200.
minicom --device=/dev/ttyACM0 --baud=115200
You may have to press RESET on the board and press Enter keys on the console
several times to make nsh prompt to appear.
If the prompt shows like this,
NuttShell (NSH)
nsh>
nsh>
nsh>
please set Add Carriage Ret option by CTRL-A > Z > U at the console,
if you're using minicom.
Run jerryscript with hello.js
NuttShell (NSH)
nsh>
nsh>
nsh> jerryscript /mnt/sdcard/hello.js
PARAM 1 : [/mnt/sdcard/hello.js]
Hello JerryScript!
Please give absolute path of the script file or may get an error like this.
nsh> cd /mnt/sdcard
nsh> jerryscript ./hello.js
PARAM 1 : [./hello.js]
Failed to fopen [./hello.js]
JERRY_STANDALONE_EXIT_CODE_FAIL
nsh>
nsh>
nsh> jerryscript /mnt/sdcard/hello.js
PARAM 1 : [/mnt/sdcard/hello.js]
Hello JerryScript!