Run Applications

Installing Applications

Applications can be installed from a local build (which you can do later) or from pre-compiled binaries from the cloud.

note

Pre-compiled binaries are compatible between boards at the instruction set level.

Hello World

note

You can browse available applications in the web app.

# install from the cloudsl cloud.install:id=Kvp7xXzdO94kyCWAAcmW# Confirm the installsl fs.list:path=device@/app/flash# Run hello worldsl app.run:path=HelloWorld,terminal

Blinky

Blinky requires some command line arguments. You need to specify which pin you want to blink on. You can optionally specify the period in milliseconds.

# install from the cloudsl cloud.install:id=8PtMwYjOghdeUpMxPmyl# Confirm the installsl fs.list:path=device@/app/flash# Run Blinky and show helpsl app.run:path=Blinky,terminal,args='--help'# 1.7 is GPIOB pin 7 (LED on Nucleo144 boards)sl app.run:path=Blinky,terminal,args='--pin=1.7'# hit ctrl+c to exit slsl os.reset# flash slowersl app.run:path=Blinky,terminal,args='--pin=1.7 --period=1000'# hit ctrl+c to exit slsl os.reset# flash fastersl app.run:path=Blinky,terminal,args='--pin=1.7 --period=100'

You will need to hit ctrl+c to exit sl. Blinky will keep running until you reset the board.

Run Both

While Blinky is running, you can install and run HelloWorld. This time HelloWorld will be installed and run in RAM rather than flash.

sl cloud.install:id=Kvp7xXzdO94kyCWAAcmW,ramsl app.run:path=HelloWorld,terminal

The applications will be installed in the MCU internal RAM and ready for execution.

# List the installed applicationssl fs.list:path=device@/app/ram

If you run out of memory, you can delete applications using:

sl os.resetsl app.clean