Device Firmware Update using SUIT

The Software Updates for Internet of Things (SUIT) is the Device Firmware Upgrade (DFU) and secure boot method for nRF54H Series of System-on-Chip. The SUIT procedure features a script-based system that resides in a SUIT manifest. The manifest contains instructions for the DFU and booting procedure, and can be customized. It includes the use of sequences (built from conditions and directives) as well as the concept of components.

To use the SUIT DFU in a product you need to customize it. You can learn about this in the How to customize the SUIT DFU process page, which involves using the SUIT: Device firmware update on the nRF54H20 SoC sample.

For a list of available SUIT samples, see the SUIT samples page.

Subpages:

• Introduction to SUIT
  • SUIT overview
  • SUIT-specific concepts
  • SUIT procedure
• SUIT manifest overview
  • Manifest elements
  • Sequences
  • Directives
  • Conditions
• Customize SUIT DFU quick start guide
  • Overview
  • Requirements
  • Building the SUIT sample
  • Modifying class and vendor identifiers
  • Next steps
• How to customize the SUIT DFU process
  • Overview of the SUIT DFU procedure
  • Requirements
  • Build system configuration
  • Variables and methods available in the manifest templates
  • How to use the manifest generator
  • Reference for suit-generator
• How to fetch payloads
  • Differences and similarities between the push and fetch models
  • Reasons to use the fetch model
  • Migrating from push-based to fetch-based firmware upgrade
  • Creating a custom fetch source
• Firmware upgrade with external memory
  • Overview of external memory in SUIT firmware updates
  • Enabling external flash support in SUIT DFU
  • Create custom companion images
  • Limitations
• SUIT components
  • Component types
  • Component ID parameters
• Hierarchical manifests
  • Manifest topology
  • Default manifest topology for the nRF54H20 SoC
• DFU and bootloader comparison