Firmware

This section details the source code of the ECUs’ firmware.

• Customization Guide
  • Modifying RAMN Firmware
  • Flashing RAMN Firmware
  • Debugging RAMN Firmware
  • Configuring the Firmware (ramn_config.h)
  • Simple Modifications to CAN Traffic (Identifiers, Periods, etc.)
    • Upgrading to CAN-FD
  • Advanced Modifications to CAN Traffic (Payload Format, etc.)
  • Modifying CAN Filters or Baud Rate
  • Modifying the UDS Interface
  • Adding New Content
    • Example: Send a CAN Message Every Second
    • Example: Execute Something on Specific CAN Message Reception
    • Example: Make a Decision Based on RAMN Controls
  • Customizing ECU A’s Display
  • Saving Data in Flash Memory
  • Modifying the .ioc File
    • System and Peripheral Settings
    • FreeRTOS Settings
    • Clock Settings
    • Linker Settings
    • Other Tools
  • Optimizing Performance
    • Compiler Optimizations
    • FreeRTOS Runtime Stats
  • Understanding RAMN’s Memory
  • Understanding RAMN’s Security Features
    • Hardening
    • Memory protection
    • Unique Hardware Seed
    • Additional Security Features (TrustZone, etc.)
  • Exploring RAMN’s Security
    • Analyzing RAMN Firmware in Ghidra
    • Writing ARM shell code for RAMN
    • Debugging with OpenOCD
  • Guidance for Typical Projects
    • Preparing RAMN for a Capture The Flag Event (or Similar)
    • Implementing a Secure CAN bus (SecOC, etc.)
    • Implementing a Custom Bootloader (OTA, Secure boot, etc.)
    • Implementing Vulnerabilities
    • Creating a New Expansion
  • General FreeRTOS Tips
  • Limitations
• Firmware Architecture
  • ECU B, C and D
  • ECU A
  • Additional Tasks
• Memory Layout
  • Memory Protection
  • FLASH
  • RAM
    • Regions
    • Heaps and Stacks
  • Memory Analysis
• Troubleshooting
  • Expected Option Bytes
  • Failed Debugging
  • Inconsistent Memory Protection
  • Failed Reprogramming over CAN
  • DFU Issues