SpacemiT X60 RISC-V Processor Powers AI and High-Speed Storage in Bit Brick K1 Embedded Board

The Bit-Brick K1 is an advanced single-board computer (SBC) designed for industrial automation, IoT applications, and AI-driven computing. Its core features the SpacemiT Key Stone K1, an ultra-low-power octa-core RISC-V processor with integrated Daoyi AI acceleration. This chip, built on the RISC-V 64GCVB architecture and RVA22 standard, delivers 2.0TOPS of AI computing power, making it an excellent choice for machine learning, TensorFlow Lite, TensorFlow, and ONNX Runtime applications.

High-Performance RISC-V Processor

The SpacemiT X60 processor in the Bit-Brick K1 employs a dual-cluster, octa-core design for efficient workload balancing.

• Cluster 0 consists of four cores with dedicated AI acceleration, featuring a 32K L1 cache, 512K L2 cache, and 512KB TCM per core.
• Cluster 1 has an additional four cores with a 32K L1 cache and 512K L2 cache, enabling multi-threaded processing for optimized performance.

The processor supports 256-bit vector extensions, significantly improving efficiency in AI inference, signal processing, and industrial computing. Its granular power islands and multiple power states reduce energy consumption without compromising speed.

Advanced Memory and Graphics Support

The board integrates LPDDR4X RAM, available in 4GB or 8GB, ensuring smooth multitasking and high-speed data operations. It features an IMG BXE-2-32 GPU clocked at 819MHz, supporting OpenCL 3.0, OpenGL ES 3.2, and Vulkan 1.3.

For AI-driven vision applications, it includes 4K H.265 and H.264 video decoding and encoding, making it well-suited for edge AI and multimedia processing.

The Bit-Brick K1 offers an extensive range of connectivity options:

• USB 3.0, USB 2.0 Host, and USB 2.0 OTG
• Gigabit Ethernet for high-speed networking
• HDMI 1.4 output (supports 1920×1080@60fps)
• MIPI CSI for camera input and MIPI DSI for display output

Additionally, the board supports PCIe 2.0 x2 and includes three M.2 slots for expansion:

• Slot 1 & Slot 2: M.2 Key-M for 2280 NVMe SSDs
• Slot 0: M.2 Key-E for wireless modules (does not support USB or PCIe connectivity)

With 40 GPIOs, multiple UART, I2C, SPI, PWM, and CAN interfaces, the Bit-Brick K1 is ideal for industrial automation, IoT networks, and embedded AI projects.

The Bit-Brick K1 documentation provides extensive resources, including:

• Hardware setup guides
• Bianbu OS installation and Linux kernel configuration
• Driver support for AI acceleration
• Guides for camera integration, ROS 2 setup, and machine learning optimization

Specifications

Memory:

• LPDDR4X SDRAM (4GB or 8GB)

Storage:

• Supports SPI flash, eMMC 5.1, SDIO 3.0 SD card
• Supports NVMe SSD via PCIe

Display:

• 1x 4-lane MIPI DSI
• 1x HDMI 1.4 (supports 1920×1080@60fps)

Camera:

• 1x 4-lane MIPI CSI

Connectivity:

• 1x Gigabit Ethernet

Multimedia:

• IMG BXE-2-32 GPU @ 819MHz
• Supports OpenCL 3.0, OpenGL ES 3.2, Vulkan 1.3
• 4K H.265/H.264 video decoding and encoding
• 1x Quad-lane MIPI DSI for display

I/O Interfaces:

• 4x SPI, 7x I2C, 6x UART
• 1x CAN, 12x PWM
• 40x GPIO

USB:

• 1x USB 3.0
• 1x USB 2.0 Host
• 1x USB 2.0 OTG

Operating Temperature:

• -40°C to 85°C

Power Input:

• 5V DC via USB-C

Dimensions:

• 90.0 x 80.0 mm

The Bit-Brick K1 is offered in two configurations on the Youyeetoo website. The basic kit includes just the single-board computer (SBC),while the development kit adds a power supply, a 32GB MicroSD card, a card reader, and a UART debug module. The basic kit costs $54.79 (4GB) or $68.52 (8GB), while the development kit is priced at $69.20 (4GB) or $80.87 (8GB).