52 lines
2.4 KiB
Markdown
52 lines
2.4 KiB
Markdown
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# Bouffalo Lab Microcontroller Software Interface Standard
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The **NMSIS** is a vendor-independent hardware abstraction layer for micro-controllers that are based on Bl70x Serial processors.
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The **NMSIS** defines generic tool interfaces and enables consistent device support.
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It provides simple software interfaces to the processor and the peripherals, simplifying software re-use, reducing the learning
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curve for micro-controller developers, and reducing the time to market for new devices.
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## NMSIS Componments
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* **NMSIS CORE**
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All Risc-V Class Processors Standardized API for the Bouffalo Lab processor core and peripherals.
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* **NMSIS DSP**
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All Bouffalo Lab Bl70x Class Processors DSP library collection with a lot of functions for various data types:
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fixed-point (fractional q7, q15, q31) and single precision floating-point (32-bit).
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Implementations optimized for the Bl70x processor core which has RISC-V SIMD instruction set.
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* **NMSIS NN**
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All Bouffalo Lab Bl70x Class Processors Collection of efficient neural network kernels developed to maximize
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the performance and minimize the memory footprint Bouffalo Lab Bl70x processor core.
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## Directory Structure
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| Directory | Content |
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|:-------------------------- |:--------------------------------------------------------- |
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| components/nmsis/core | NMSIS-Core related files |
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| components/NMSIS/DSP | NMSIS-DSP related files |
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| components/NMSIS/NN | NMSIS-NN related files |
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| examples/dsp | dsp examples |
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| examples/nn | nn examples |
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| examples/mfcc | mfcc compile examples |
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## Build Command
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In the bl_mcu_sdk root directory, input
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`` make APP=BasicMathFunctions_part1 ``
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BasicMathFunctions_part1 is project foldor name which is placed in examples/dsp or examples/nn.
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User can replace APP=xxx to change build target.
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## License
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This NMSIS is modified based on open-source project CMSIS to match Boufflao Lab requirements.
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This project transplant NMSIS into bl_mcu_sdk structure for Bouffalo Lab Device Adapting.
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NMSIS is licensed under Apache-2.0.
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