CAVU Aerospace UK Ltd

Satellite On-Board Computer Module

OBCM

The CAVU OBCM is a state-of-the-art, FPGA-based computing system designed for reliability and efficiency in critical space missions. It offers smooth operation, scalability, and redundancy. This system is built to withstand various space environments and ensures precise timing, high throughput, and low power consumption for satellite payloads. It also features automatic system recovery and self-diagnosis to keep deep-space missions on track.

KEY FEATURES

  • Single Board Flash Based FPGA
  • Up to 3 Selectable Boot Regions from Bootloader
  • Fully Customizable

INTELLIGENT REDUNDANCY

The OBC is exposed to various hazards in space, such as radiation, cosmic rays, and solar flares, which can cause errors or failures. CAVU OBCM is designed based on state of the art flash based Microchip/Microsemi SmartFusion2 & ProASIC3 Flash Based FPGA which, according to the company, is SEU immune due to its flash cells architecture. This architecture also needs less power in comparison with conventional SRAM based FPGA architectures.

ADVANCED SATELLITE COMMAND CONTROL

The OBCM is a highly advanced module designed to meet the complex needs of the satellite industry. It works with a variety of sensors and actuators for precision control of satellite systems. It supports over 15 different serial interfaces and 200 GPIOs, making it a comprehensive solution for AOCS and Power Management computing needs. The OBCM offers high levels of control and flexibility, allowing customization to unique requirements. It represents the peak of modern technology in the satellite industry.

SPECIAL FEATURES

  • Expected Life-time: 3-5 years in LEO
  • On-Board Current & Temperature Monitoring
  • On-Board Watchdog
  • Triple Real Time Clock
  • Hot Redundant On-Board Voltage Converters
  • Scalable for Dual Redundancy with Same Module

PROCESSOR

  • Microchip/Microsemi SmartFuion2 Flash Based FPGA
  • ARM Cortex-M3 on FPGA
  • Microsemi ProASIC3 Flash Based FPGA for Interaface
  • FPU on FPGA Upon Request
  • 150 DMIPS @ 128MHz, Max 166MHz
  • SoftConsole/Keil Programming IDE and Debug via JTAG

MEMORY

  • RAM: 160Mbits MRAM 40 bits width (128Mbits+32Mbits ECC)
  • ROM: 96Mbits MRAM (Congurable as Triple 32Mbits)
  • Nonvolatile Flash Memory:
    • Total 24Gbit SLC NAND Flash (Triple 8G)
    • 256K Serial FRAM
    • 256M Serial NOR

ENVIRONMENT

  • Radiation Tolerance:
    • Total Ionizing Dose: 30Krad (Si)/yr
    • Latch-up Immune
    • SEE @ 60MeV
  • Temperature & Pressure: -40 C to +85 C @ 10-8 bar
    Shocks: 2000g, 2000-10000Hz
    Random Vibrations: 14g(RMS) 3-Axis , 20~2000Hz

INTERFACES

  • DIGITAL/ANALOG:
    • Digital Outputs (5V/3.3V) : 100
    • Digital Inputs (5V/3.3V) : 90
    • PWM/Pulse Outputs (5V/3.3V) : 10
  • Serial Interfaces:
    • CAN2.0 Up to 1Mbps : 5
    • Full-Duplex RS422 : 8
    • Half-Duplex RS485 : 8
    • RS232 : 1
    • I2C : 1
    • SPI : 1

BUDGET

  • Dimensions: 203x175x22mm
  • Mass: 1000gr
  • Power Supply: 5V ±5%, Custom Range Available
  • Power Consumption: 1.5W ~ 3W