# Prerequisite Software: Downloading and Installation

1. Download and install the IAR Embedded Workbench from the IAR Systems Website, using the vendor’s instructions.
2. After the IAR IDE is installed, you need to update the SEGGER® J-Link® software:
   1. Go the Start menu and type J-Link DLL Updater V<J-Link_version>, where <J-Link_version> is the version of J-Link recommendeded for the IAR Embedded Workbench, and press Enter.
   2. Select the IAR Embedded Workbench for ARM checkbox and click OK.
3. Download the RSL15 Software Package from www.onsemi.com/RSL15 and extract the RSL15 CMSIS-Pack (onsemi.RSL15.<version>.pack) to any temporary folder.