Description

Interfaces:

• 3xRS422 Full-Duplex
• 1xUART for external communication
• 2xCAN
• 2xI2C
• PPS
• 15xGPIO in different connectors
• 8xADC
• 6xPWM over an H-Bridge
• Umbilical connector with following interfaces:
  • CAN
  • OBC JTAG
  • 4xGPIOs
  • OBC UART for debugging
  • Multipurpose OBC UART
  • TTC UART for debugging
  • 2xUARTs for payload access
• RF TX/RX for TTC
• SPI
• On-Board Computer:
  • ARM Cortex-M7 CPU 32-bit
  • 2MB program flash memory
  • 1.4MB of internal RAM memory
  • 2xmicroSD card slot for massive storage
  • EEPROM for board configuration
  • RAM execution memory (SDRAM – 256 Mb)
  • Persistent memory (MRAM – 4 Mb)
  • Persistent memory for data storage (NAND Flash – 1 Gb)
  • Hardware watchdog and reset circuit
  • RTC with external power supply for time retention during power-downs
  • Switchable power for Flash, PWM H-Bridge, internal GNSS and an external independent
    power supply for external sensors.
  • Cryptographic capabilities (AES, HMAC)
• TTC:
  • ARM Cortex-M7 CPU 32-bit
  • 2MB program flash memory
  • 1.4MB of internal RAM memory
  • EEPROM for board configuration
  • Persistent memory for OBSW status (MRAM – 4 Mb)
  • Persistent memory for data storage (NAND Flash – 1 Gb)
  • Frequencies bands:
    • UHF (395 – 410 MHz)
    • UHF amateur (430 – 440 MHz)
  • Half-duplex communication
  • GFSK modulation (GMSK)
  • Data rates: 1.2 – 19.2 kbps
  • Transmission power: 30 dBm
  • PAE: 35%
  • Reception sensitivity: -123 dBm @ 1.2 kbps
  • Golay + Reed-Solomon codification
  • Hardware watchdog and reset circuit
  • Cryptographic capabilities (AES, HMAC)
• Different or same power supply lines options for TTC and OBC
• Different power supply line for RTC
• Integrated temperature and current sensors
• Operation temperature -40 ºC to +85 ºC