Set Up Your Development Environment#

Objective#

Create a complete development environment.

Step 1. Install the Required Packages#

Run the following command to install the packages that are defined in the project recipe:

slt installslt install

This command installs the packages defined in the project recipe (for example, a Software Development Kit (SDK), SLC-CLI, GCC, CMake, Ninja, and Commander).

For first-time installation and setup, see First-Time Installation Setup.

Step 2. Verify Installed Packages#

Run the following command to list the packages that are available for installation with SLT:

slt listslt list

The slt list command lists the packages that you can install with SLT, including SDKs, build tools, CLI tools, and other utilities.


Package Type	Examples
SDKs	`simplicity-sdk`, `wiseconnect`, `matter_extension`, `sidewalk`, `aiml`
Build Tools	`cmake`, `ninja`, `gcc-arm-none-eabi`
CLI Tools	`slc-cli`, `zap`, `commander`
Other Tools	`exx32`, `sdm`

To display information about a package, specify the package name:

slt list simplicity-sdkslt list simplicity-sdk

Example output:

Package: simplicity-sdk
Installed Versions:
  Id: simplicity-sdk
  Version: 2025.12.3
  Installer type: conan
  Package type: sdk
  Installation:
    C:\Users\user_name\.silabs\slt\installs\conan\p\simpl35774a752829c\p

  Id: simplicity-sdk
  Version: 2026.6.0
  Installer type: conan
  Package type: sdk
  Installation:
    C:\Users\user_name\.silabs\slt\installs\conan\p\simpl736c405abd917\pPackage: simplicity-sdk
Installed Versions:
  Id: simplicity-sdk
  Version: 2025.12.3
  Installer type: conan
  Package type: sdk
  Installation:
    C:\Users\user_name\.silabs\slt\installs\conan\p\simpl35774a752829c\p

  Id: simplicity-sdk
  Version: 2026.6.0
  Installer type: conan
  Package type: sdk
  Installation:
    C:\Users\user_name\.silabs\slt\installs\conan\p\simpl736c405abd917\p

Step 3. Locate the Installed SDK#

Run the slt locate command to display information about installed packages that SLT manages.

slt locate simplicity-sdkslt locate simplicity-sdk

For each installed package, the command displays the following information:


Information	Description
Name	The package name (for example, `simplicity-sdk`)
Version	The installed version (for example, `2025.12.3`)
Type	The package type (for example, `SDK`, `Tool`, or `CLI`)
Location	The file system path where the package is installed

Step 4. Update Installed Packages#

Run the slt update command to update packages that are already installed.

slt update -aslt update -a

It checks for newer versions that satisfy the installed package constraints and installs those updates.

Example output:

Checking for updates...
Updating simplicity-sdk 2025.6.1 -> 2025.12.2
Updating slc-cli 1.3.0 -> 1.4.0
Updating commander 1.19.0 -> 1.20.0
Update complete.Checking for updates...
Updating simplicity-sdk 2025.6.1 -> 2025.12.2
Updating slc-cli 1.3.0 -> 1.4.0
Updating commander 1.19.0 -> 1.20.0
Update complete.

Update a Specific Package#

slt update simplicity-sdkslt update simplicity-sdk

This command updates only the Simplicity SDK to the latest compatible version.