The Xiangteng NPU chip HKN201 neural network processor is a domestically produced, high-performance, multi-core processor designed for strong real-time, high-performance, and high-concurrency application scenarios by Xi’an Xiangteng Microelectronics Technology Co., Ltd.The hardware design reference documents for the HKN201 neural network processor core board include the hardware design guide, core board hardware schematic reference, schematic design checklist, and a compilation of core board design reference materials.
1. Hardware Design Guide
The reference document “HKN201 Neural Network Processor Hardware Design Guide” introduces the key points and considerations for the hardware design of the HKN201 processor, helping customers shorten the product design cycle and improve product design stability. It covers aspects such as schematic design, PCB design, thermal design, and soldering processes.
Chapter 1: Introduction to the System Block Diagram of a Typical NPU Core Board
Chapter 2: Schematic Design Recommendations
- Minimum System Design for NPU Core Board: This includes the core chip, peripheral resources (including DDR4 memory, EEPROM memory, PCIe bus interface), a 40MHz main clock, power-on and reset design, etc. Each part’s interface design has specific requirements, such as clock input level requirements, reset signal valid time requirements, PCIe clock and interface parameter requirements, DDR4 selection requirements, etc.
- Power Supply Design: Clearly define the voltage, current range, and specification requirements for various power supplies, as well as power-on sequence requirements. Suggestions for different power supply wiring, decoupling, etc., are provided.
Chapter 3: PCB Design Recommendations This includes recommendations for PCB layering design, power PCB design, DDR4 PCB design, etc. Design principles such as controlling trace length and maintaining impedance matching are proposed for high-speed routing.Chapter 4: Thermal Design Recommendations Simulation data at an ambient temperature of 85°C is provided, including chip junction temperature, ambient thermal resistance, etc. Recommendations for adding external heat sinks and other measures to ensure thermal reliability are given.Chapter 5: Soldering Recommendations for NPU Chips The NPU chip should be baked in an oven at 125°C for 48 hours to remove moisture before soldering, and SMT curve recommendations and other process requirements are provided.
2. Core Board Hardware Schematic Reference
Reference document “HK201-CORE-D-V4_DEMO” schematic
3. Schematic Design Checklist
Reference document “HKN201 Neural Network Processor User Schematic Self-Inspection Template” introduces the key points and considerations for hardware design, aiming to help customers shorten the product design cycle, and is used for HKN201 users to conduct schematic self-checks.
4. Compilation of Core Board Design Reference Materials
Reference documents include
For detailed information, refer to Hard Ten Classroom, scan the QR code to enterhttps://www.hw100k.com/coursedetail?id=271
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