Developing with WiSeConnect™ SDK v3.x with SiWx91x™ Boards using Simplicity Studio CLI#

This guide describes how to develop applications on a SiWx91x™ board using the WiSeConnect™ SDK v3.x in System-on-chip (SoC) mode, where both the application and the connectivity stack run on the SiWx91x chipset using Simplicity Studio CLI on Windows.

Prerequisites#

Software#

  • Download SiSDK and WiseConnect SDK:

    • Simplicity software development kit (SiSDK (formerly GSDK)).

    • WiSeConnect SDK.

Note:

  • Copy them to a location with a shorter path.

  • We recommend using the latest SiSDK (formerly GSDK) version.

  • Refer to the Release Notes

  • Install SLC-CLI:

    • Download and install the SLC-CLI for Windows from Silicon Labs.

  • Install Java:

    • Install Java 64-bit JVM version 17 or higher, available from Amazon Corretto.

    • Verify Java Version:Java VersionJava Version

  • Install make:

    • Install make 4.3 or higher

    • Verify Make Version:Make VersionMake Version

  • Download ARM GNU Toolchain:

Note: Ensure Java version is higher than 17 and Make version is higher than 4.3.

  • Setup System Variables:

    • To access SLC-CLI from anywhere in your system, add the path(\slc_cli_windows\slc_cli) with the expanded slc_cli to your system variables Path variable.Path System Varaible for slc-cli accessPath System Varaible for slc-cli access

    • To access the make from any location add(C:\SiliconLabs\SimplicityStudio_v5\support\common\build\msys\1.0\bin) to system variables Path variable.Path System Varaible for make accessPath System Varaible for make access

    • Add system variable with POST_BUILD_EXE as variable name and C:\Users\shsaicha\.silabs\slt\installs\archive\Simplicity Commander\commander.exe as variable value.Post Build Exe System VariablePost Build Exe System Variable

Hardware#

  • Wi-Fi Access Point (802.11 ax/b/g/n)

  • One of the following SoC boards (hereafter referred to as SiWx917 board):

    • BRD4338A - SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash Radio Board (hereafter referred to as the radio board)

    • BRD4342A - SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash + 8 MB ext PSRAM Radio Board (hereafter referred to as the radio board)

    • BRD4343A - SiWG917Y Module Wi-Fi 6 and Bluetooth LE 8 MB Flash RF-Pin Radio Board (hereafter referred to as the radio board)

    • BRD2605A - SiWG917 Dev Kit Board (hereafter referred to as the dev kit board)

    • BRD2708A - SiWG917Y Explorer Kit (hereafter referred to as the explorer kit board)

  • If a radio board is used or if you need to measure power using the explorer kit board or dev kit board, a WPK board is also required:

    • BRD4002A - Si-MB4002A Wireless Pro Kit Mainboard (hereafter referred to as WPK board).

  • Windows/Linux/MacOS computer with a USB port

  • Type C USB cable compatible with the computer's USB port (for example, type C to type A if the computer has a type A USB port).

Note: Hardware is not need to be connected to laptop for building application using SLC-CLI.

Steps#

  1. Configure the Simplicity SDK:

    slc configuration --sdk <path to SiSDK>

    Example:

    slc configuration --sdk C:\simplicity-sdk

    Example Output:

    configure-sdkconfigure-sdk

  2. Configure the Tool Chain:

    slc configuration -gcc=<Path to Installed arm gnu tool chain>

    Example:

    slc configuration -gcc=C:\Users\shsaicha\Downloads\SLC_CLI\arm-gnu-toolchain-12.2.rel1-mingw-w64-i686-arm-none-eabis

    Example Output:

    configure-toolchainconfigure-toolchain

  3. Trust the WiSeConnect SDK:

    • Create extension folder in simplicity-sdk and Copy downloaded wiseconnect into extension folder.

    slc signature trust -extpath <Path to wiseconnect extension>

    Example Command:

    slc signature trust -extpath C:\simplicity-sdk\extension\wiseconnect

    Example Output:

    trust-extensiontrust-extension

  4. Trust the SiSDK:

    slc signature trust --sdk <Path to SiSDK or GSDK>

    Example:

    slc signature trust --sdk C:\simplicity-sdk

    Example Output:

    trust-sdktrust-sdk

  5. Generate Project Files:

    • Navigate to the example folder in the command prompt.

    cd C:\simplicity-sdk\extension\wiseconnect\examples\featured\firmware_update

    • Run the following command:

    slc generate --with "brd4338a;wiseconnect3_sdk" <path to the slcp file> -d <target path>

    Example:

    slc generate --with "brd4338a;wiseconnect3_sdk" firmware_update_soc.slcp -d output

    Example Output:

    generate-outputgenerate-output

  6. Generate Binaries:

    • Navigate to the output folder.

    cd output

    • Run the following command:

    make -f ./<executable.Makefile> -j

    Example:

    make -f ./wifi_firmware_update_soc.Makefile -j

    Example Output:

    generating-binaries-onegenerating-binaries-one

    generating-binaries-twogenerating-binaries-two

  7. Flash the Binary:

    • Binaries are generated and saved at output\build\debug.

    • The binary can be flashed using the Simplicity Commander or Commander CLI.

Run the Application#

Once you flash the example, you may refer to the Test the Application section of its README page to explore its output.

The other sections of the README like the Purpose/Scope section provide more information about the example.

See the Examples page to explore all available examples including their supported host interfaces (SPI and/or UART) and to view their README pages.

Note: See the troubleshoot an application run failure section in case the application fails to run.