MCUBoot Over-the-Air Download (OAD)

The following sections aim to describe the lower layers of OAD software that are common across all protocol stack implementations. This includes the OAD image header, the flash layout, Secure Bootloader, and the oad image tool.

Warning

The TI Wi-SUN FAN Stack OAD Profile does not implement or perform any security or authentication mechanisms as part of the firmware update process. System developers should take measures to adequately authenticate peer devices and only accept and/or apply firmware images transferred from trusted sources via the OAD Profile.

Attention

Due to memory constraints, the TI Wi-SUN FAN Stack does not support on-chip OAD on CC13x2 or CC13x2x7 devices.

• Introduction
  • OAD Topology Overview
• OAD Storage & Security
  • OAD Storage
  • OAD Security
• MCUboot Overview
• Flash Layout for Off-Chip OAD
  • Constraints and Requirements for Off-chip OAD
  • Internal Flash Memory Layout
  • External Flash Memory Layout
• Flash Layout for On-Chip OAD
  • Internal Flash Memory Layout
• MCUBoot OAD Image Header
  • MCUBoot OAD Image Header
• Post-Build Script imgtool

The following sections aim to describe the TI Wi-SUN FAN Stack specific application and profile layer of the OAD solution. The OAD application section will describe the TI Wi-SUN FAN Stack process from a high level in terms of events and states, and the profile section will cover the actual structures that are sent over the air.

• Wi-SUN OAD
  • OAD Protocol
  • OAD State Machines
  • OAD Messages
    • OAD Firmware Request
    • OAD Notification Request
    • OAD Notification Response
    • OAD Image Block Request
    • OAD Image Block Response
    • OAD Complete Request
    • OAD Complete Response
    • OAD Abort
  • OAD Target Module
    • OAD Tasklet
    • OAD CoAP Callbacks
    • OAD Storage
  • OAD Distributor
    • Token based CoAP Response Tracking
    • Block Request handling
    • Response handling