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FOX Board D27 Low power single board computer

Linux embedded system on module designed around the Microchip SAMA5D27 Cortex-A5@500 MHz MPU

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  • Microchip SAMA5D27 MPU (Cortex A5 single core @500MHz)
  • Based on RoadRunner SOM More info
  • 256 MBytes of DDR3L RAM @ 166MHz
  • 2 connectors 2x20 pitch 2.54mm for expansion boards
  • Temperature range: -25°C to +85°C
  • Weight: 41g
  • Single power supply a 5 Volt DC via USB-C connector
  • Ultra Low-power mode with fast wakeup capability
  • Low-power Backup mode with 5-Kbyte SRAM and SleepWalking (tm) features
  • Wakeup from up to eight wakeup pins, UART reception, analog comparison
  • Extended Backup mode with DDR in Self-Refresh mode

Declarations of conformity

Signals available on expansion connectors (J1 and J2)

The board is provided with no connector mounted.

  • Up to 66 General purpose GPIOs Pinout
  • Up to 4 serial ports
  • Up to 4 I2C bus
  • A/D converter @ 12 bit (up to 12)

Acme Sensor ports

  • Up to ACME Sensors port available. Each port is configurable as: GPIOs, I2C, Serial

Software features

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Single Board Computer based on RoadRunner Linux SOM (Included)

  • Classic "Credit Card" form factor
  • Two USB Host 2.0 ports (one configurable as USB client on the USB-C connector)
  • One 10/100 Mbit/s Lan port
  • 2 Acme Sensor ports
  • Double placements for 2.54mm pitch 20x2 pinstrips (not soldered) for GPIOS, SPI, I2C, Serial etc ports
  • Credit Card footprint
RoadRunner D2

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  • CPU Microchip SAMA5D27
  • Cortex A5 @ 500 MHz
  • Very low power consumption:
    396mW in full speed mode
    198mW at Linux prompt
    17mW in standby mode
    10mW in suspend to RAM mode
  • Armhf architecture
  • DDR3L RAM 256 MB
  • QuadSPI 0/16/64/128MB
  • Size: 40x30 mm
  • Plug-in module
  • 200 pins 0.4 mm pitch
  • TFT parallel interface
  • Boot from internal Quad SPI or external uSD/eMMC
  • Linux Kernel 5.15 LTS
  • Debian, Buildroot and Yocto
  • Open source drivers

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  • All the circuitries you need to test the RoadRunner SOM
  • USB host, USB device, Ethernet port, MicroSD socket
  • Test points for power consumption measurements
  • All the Roadrunner signals exposed on 2.54mm pitch pins
  • On-board supercap for RTC and backup memory circuit

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