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96 lines
2.3 KiB
Markdown
96 lines
2.3 KiB
Markdown
### About
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This folder contains files to run JerryScript on RIOT-OS with STM32F4-Discovery board.
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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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| + riot-stm32f4
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+ RIOT
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```
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2, Target board
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Assume [STM32F4-Discovery with BB](http://www.st.com/web/en/catalog/tools/FM116/SC959/SS1532/LN1199/PF255417)
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as the target board.
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#### 2. Prepare RIOT-OS
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Follow [this](https://www.riot-os.org/#download) page to get the RIOT-OS source.
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Follow the [Inroduction](https://github.com/RIOT-OS/RIOT/wiki/Introduction) wiki site and also check that you can flash the stm32f4-board.
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#### 3. Build JerryScript for RIOT-OS
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```
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# assume you are in harmony folder
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cd jerryscript
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make -f ./targets/riot-stm32f4/Makefile.riot
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```
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This will generate the following libraries:
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```
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/build/bin/release.riotstm32f4/librelease.jerry-core.a
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/build/bin/release.riotstm32f4/librelease.jerry-libm.lib.a
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```
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This will copy one library files to `targets/riot-stm32f4/bin` folder:
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```
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libjerrycore.a
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```
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This will create a hex file in the `targets/riot-stm32f4/bin` folder:
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```
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riot_jerry.elf
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```
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#### 4. Flashing
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```
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make -f ./targets/riot-stm32f4/Makefile.riot flash
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```
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For how to flash the image with other alternative way can be found here:
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[Alternative way to flash](https://github.com/RIOT-OS/RIOT/wiki/Board:-STM32F4discovery#alternative-way-to-flash)
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#### 5. Cleaning
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To clean the build result:
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```
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make -f ./targets/riot-stm32f4/Makefile.riot clean
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```
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### 5. Running JerryScript Hello World! example
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You may have to press `RESET` on the board after the flash.
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You can use `minicom` for terminal program, and if the prompt shows like this:
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```
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main(): This is RIOT! (Version: ****)
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You are running RIOT on a(n) stm32f4discovery board.
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This board features a(n) stm32f4 MCU.
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```
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please set `Add Carriage Ret` option by `CTRL-A` > `Z` > `U` at the console, if you're using `minicom`.
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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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The `test` command will run the test example, which contains the following script code:
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```
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print ('Hello, World!');
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```
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