Explore the Power of GRiSP 2

GRiSP Technical Specifications

Explore the hardware and software powering GRiSP 2. Learn about GRiSP 2's key features, expandability with Digilent Pmod™ Compatible accessories, and how Erlang integrates with RTEMS for real-time performance in embedded systems.

Hardware: GRiSP 2 Board

Blueprint of the GRiSP 2 board detailing hardware layout and components for embedded systems.

The GRiSP 2 board is a compact, modular prototyping board made from a System on Module (SoM) and an IO break-out base board, featuring built-in Wi-Fi, USB connectivity, and multiple ports for various extensions. Based on user feedback, GRiSP 2 offers enhancements like real bare-metal Erlang, support for Elixir via Nerves and Linux, more CPU power, ultra-fast boot times, an Ethernet port, and improved IO throughput. Its modular design simplifies the move from development to production, with backward compatibility for Erlang projects.Below are the full specifications for the GRiSP 2 board.

Key Hardware Features

Icon representing the GRiSP board's high-performance CPU for IoT applications.

CPU:

  • NXP iMX6UL, ARM Cortex-A7 @ 696 MHz, 128 KB L2 cache
  • Integrated power management
  • TRNG, Crypto Engine (AES/TDES/SHA), Secure Boot
Icon representing the memory capacity of the GRiSP board for efficient processing.

Memory:

  • 128 MB of DDR3 DRAM
Icon representing storage capabilities.

Storage:

  • 4 GB eMMC
  • 4 KBit EEPROM
Icon representing a secure element.

Secure Element:

  • ATECC608B
  • ECC-P256 (ECDH and ECDSA), SHA256, AES128-GCM
  • Standby Typical (uA):0.03
  • Single-wire; I2C
Icon representing network connectivity.

Network:

  • Wi-Fi 802.11b/g/n WLAN
  • 100 Mbit/s Ethernet port with support for IEEE 1588
Icon representing external storage.

External Storage:

  • MicroSD Socket for standard MicroSD cards
Icon representing exposed input/output.

Exposed Input/Output:

  • Dallas 1-Wire via 3-pin connector
  • Diligent Pmod™ Type 6 (I²C) Compatible
  • Two Diligent Pmod™ Type 1 (GPIO) Compatible
  • One Diligent Pmod™ Type 2 (SPI) Compatible
  • One Diligent Pmod™ Type 2A (expanded SPI) Compatible
  • One Diligent Pmod™ Type 3 (UART) Compatible
Icon representing user interface features.

User Interface:

  • Two RGB LEDs
  • 5 DIP switches
  • Reset Key
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Debug & Supply:

  • Serial port via Micro USB for console (Erlang Shell or RTEMS Console)
  • On-board JTAG debugger via Micro USB
  • JTAG / Trace connector for external debuggers
  • Power supply via Micro USB connector
  • Only one USB cable is needed for power, console, and on-board JTAG

The software side of GRiSP is an Erlang-based custom operating system designed for minimal overhead and maximum ease of use. It is open-source and available on GitHub.

Real-Time Embedded Operating System

RTEMS + Erlang = GRISP

Erlang, a programming language designed for scalable, networked software systems with built-in support for concurrency, distribution, and fault tolerance, is integrated with RTEMS, a hard real-time embedded operating system. This combination provides minimal latency and high responsiveness for embedded systems.

Expandable and Customizable

Digilent Pmod™ Compatible:

Image representing the GRiSP 2 board with Pmods, demonstrating compatibility with Digilent Pmod™ accessories. Provides access to affordable, ready-to-use expansion modules for sensors like accelerometers, gyroscopes, and temperature sensors, as well as actuators like motor drivers and audio outputs.

The GRiSP 2 board supports Digilent Pmod™ Compatible accessories, providing access to affordable, ready-to-use expansion modules with sensors (such as accelerometers, gyroscopes, temperature sensors, and GPS) and actuators (including motor drivers, RC servos, and audio outputs).

I/O Simplicity

1-Wire Bus

Icon representing the Wire bus, illustrating the 1-Wire connector for connecting sensors and actuators with a single data wire and ground wire. Ideal for distributed sensor networks.

The 1-Wire connector allows connection to many 1-Wire compatible sensors and actuators with just one data wire and a ground wire. It supports longer wires, making it ideal for distributed sensor networks.

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