Postbuild Steps#

For Series 1 devices, the main stage bootloader needs to be combined with the first stage bootloader, which results in a combined bootloader binary. To accomplish this, a postbuild script is made available with the GSDK, which combines the appropriate first stage bootloader with the main stage bootloader to produce a combined bootloader binary. A postbuild step must be explicitly added through the Project’s settings so that the postbuild script can be run after the bootloader build is complete. For more details, see Silicon Labs Gecko Bootloader User's Guide for GSDK 4.0 and Higher.

Note: Adding the postbuild steps is mandatory when building bootloader binaries for Series 1 devices. If the postbuild step is not configured correctly, Simplicity Studio cannot build a combined bootloader binary image.