bl_mcu_sdk/examples/nn/Readme.md

Bouffalo Lab Microcontroller Software Interface Standard

The NMSIS is a vendor-independent hardware abstraction layer for micro-controllers that are based on Bl70x Serial processors.

The NMSIS defines generic tool interfaces and enables consistent device support. It provides simple software interfaces to the processor and the peripherals, simplifying software re-use, reducing the learning curve for micro-controller developers, and reducing the time to market for new devices.

NMSIS Componments

• NMSIS CORE

  All Risc-V Class Processors Standardized API for the Bouffalo Lab processor core and peripherals.

• NMSIS DSP

  All Bouffalo Lab Bl70x Class Processors DSP library collection with a lot of functions for various data types: fixed-point (fractional q7, q15, q31) and single precision floating-point (32-bit). Implementations optimized for the Bl70x processor core which has RISC-V SIMD instruction set.

• NMSIS NN

  All Bouffalo Lab Bl70x Class Processors Collection of efficient neural network kernels developed to maximize the performance and minimize the memory footprint Bouffalo Lab Bl70x processor core.

Directory Structure

Directory	Content
components/nmsis/core	NMSIS-Core related files
components/nmsis/DSP	NMSIS-DSP related files
components/nmsis/NN	NMSIS-NN related files
examples/dsp	dsp examples
examples/nn	nn examples
examples/mfcc	mfcc compile examples

Build Command

In the bl_mcu_sdk root directory, input make APP=BasicMathFunctions_part1

BasicMathFunctions_part1 is project foldor name which is placed in examples/dsp or examples/nn. User can replace APP=xxx to change build target.

License

This NMSIS is modified based on open-source project Nuclei NMSIS to match Boufflao Lab requirements. This project transplant NMSIS into bl_mcu_sdk structure for Bouffalo Lab Device Adapting. NMSIS is licensed under Apache-2.0.