Over-the-Air Download (OAD)

Warning

The BLE-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. TI recommends applications use Bluetooth LE Secure Connections (LESC) with Man-in-the-Middle (MITM) protection with peer devices when performing wireless firmware updates, although the use of the LESC feature does not itself guarantee image authenticity.

• Introduction
  • OAD Topology Overview
• OAD Process
  • WSN OAD software architecture
  • OADProtocol service
    • Functions and callbacks for the OAD distributor role
    • Functions and callbacks for the OAD target role
    • Radio access functions
  • Creating an OAD-able binary image
  • Uploading a target image to the server
  • Reading the firmware version from a remote node
  • Loading the image from the server to the client
  • Completion of the OAD Process
  • Handling Errors During the OAD Process
• Boot Image Manager (BIM)
  • Overview & Software Architecture
  • Boot procedure
    • Device trim
    • Halt In Boot (HIB)
  • Locating and Preparing a user application
    • BIM for Off-Chip OAD
• OAD Image Header
  • OAD Image Header Overview
  • OAD Core Image Header
    • OAD Image Identification Value
    • CRC
    • BIM Version
    • Image Header Version
    • Wireless Technology
    • Image Information
    • Image Validation
    • Image Length
    • Program Entry Address
    • Software version
    • Image End Address
    • Header Length
  • OAD Image Header segments
    • Segment Header
      • Segment Type
      • Wireless Technology
      • Reserved
      • Payload Length
    • Boundary Information Segment
      • Stack Entry Address
      • Stack Boundary Address (ICALL_STACK0_ADDR)
      • Lower RAM Boundary (RAM_START_ADDR)
      • Upper RAM Boundary (RAM_END_ADDR)
    • Contiguous Image Information Segment
      • Image Start Address
    • Security Information Segment
      • Verification status
      • Security Version
      • Security Timestamp
      • Certificate Payload
• OAD External Flash Image Header
  • Additional Fields in External Flash Image Header
• Flash Layout for Off-Chip OAD
  • Constraints and Requirements for Off-chip OAD
  • Internal Flash Memory Layout
  • External Flash Memory Layout
• OAD Image Tool
  • Running the tool
  • Running the Tool from Source
  • Required Arguments/Getting help