OBDH 2.0

The OBDH 2.0 is an on-board computer module designed by SpaceLab for nanosatellite missions. This manual describes its architecture, hardware, firmware, assembly, operation, telemetry, communication packets, and hardware test results.

Documentation

• Introduction
• System Overview
  • Product tree
  • Block Diagram
  • System Layers
  • Operation
    • Execution Flow
    • Data Flow
    • Status LEDs
• Hardware
  • Interfaces
  • External Connectors
    • PC-104
    • Antenna Module
    • Programmer and Debug
    • Daughterboard
  • Microcontroller
    • Interfaces Configuration
    • Clocks Configuration
    • Pinout
  • External Watchdog
  • Non-Volatile Memories
    • Flash NOR
    • FRAM
  • I2C Buffers
  • RS-485 Transceiver
  • Voltage and Current Sensors
• Firmware
  • Product tree
  • Dependencies
  • Tasks
    • Antenna deployment
    • Antenna reading
    • Data log
    • General Telemetry
    • EDC reading
    • EPS reading
    • Heartbeat
    • Housekeeping
    • Mission Manager
    • Payload X reading
    • Position Determination
    • Read sensors
    • Startup (boot)
    • Schedule TC
    • System reset
    • Telecommand processing
    • Time control
    • TTC reading
    • Watchdog reset
  • Variables and Parameters
  • Telemetry
  • Telecommands
    • Authentication
    • Telecommand Descriptions
  • Operating System
  • Hardware Abstraction Layer (HAL)
• Board Assembly
  • Development Model
    • Debug and programming connectors
    • Status leds
  • Flight Model
  • Custom Configuration
• Usage Instructions
  • Powering the Board
  • Log Messages
  • Daughterboards Installation
  • Flight Preparation
• References

Appendix

• Telemetry Packets
  • EDC Information
  • OBDH Information
  • EPS Information
  • TTC Information
  • Antenna Information
  • SBCD Packets
• Telecommunication Description
  • Downlink
  • Uplink
• Test Report of v0.5 Version
  • Visual Inspection
  • Firmware Programming
  • Communication Busses
  • Sensors
    • Input Voltage
    • Input Current
  • Peripherals
    • NOR Flash Memory
  • Conclusion
• Test Report of v0.7 Version
  • Visual Inspection
  • Firmware Programming
  • Communication Busses
  • Sensors
    • Input Voltage
    • Input Current
  • Peripherals
    • NOR Flash Memory
    • FRAM Memory
  • Conclusion