AGNOSAR® Bootloader

At the top of the architecture is the Bootloader Task Manager, which acts as the central controller. It coordinates all bootloader operations, manages task execution, and ensures system readiness during start-up

Software Function Modules (Blue)

These modules handle core bootloader logic and security:

• Decompression & Decryption: Ensures secure loading of application binaries.
• Application Validity Interface: Verifies the integrity of the application before execution.
• Security Module: Manages authentication and secure boot processes.
• Boot State Manager: Tracks and controls the bootloader’s operational states.
• CRC Module: Performs cyclic redundancy checks for data integrity.
• Scheduler & Utilities: Schedules various Bootloader tasks and provides utility functions.

Communication Modules (Orange)

These modules enable diagnostic and communication capabilities:

• Diagnostic Configuration & UDS: Supports Unified Diagnostic Services for vehicle diagnostics.
• CAN Transport Layer & CAN Driver: Facilitates communication over Controller Area Network.
• Diagnostic over IP & TCP/IP: Enables diagnostics via Ethernet and IP protocols.
• Ethernet Driver: Supports high-speed data exchange over Ethernet.

Memory Management Modules (Green)

These modules handle memory operations critical to bootloader functionality:

• Memory Program Manager: Manages programming of flash memory.
• Memory Configuration: Defines memory layout and access rules.
• Bootloader Data: Stores configuration and ECU specific data.
• Flash Driver: Interfaces with flash memory hardware for erase/write/read operations.

Hardware-Specific Services (Grey)

These modules provide low-level hardware support:

• MCU Services: Includes PLL, SPI, MCU, SBC, and watchdog configurations.
• ECU Services: Supports external watchdogs, EEPROMs, and other ECU-specific hardware.