AN 1011: TinyML Applications in Altera FPGAs Using LiteRT for Microcontrollers - Provides guide for developing LiteRT for Microcontrollers software in a Nios® V processor system. - 2025-09-29

1. Overview
1.1. Requirements
2. Preparing LiteRT Inference Model
2.1. Defining the Problem
2.2. Gathering and Preparing Sample Data
2.2.1. Preparing Dataset
2.2.2. Preprocessing Dataset
2.3. Building TensorFlow Model
2.3.1. Constructing Model Architecture
2.3.2. Configuring Model
2.3.3. Training Model
2.3.4. Evaluating the Model
2.3.5. Saving and Loading Model
2.4. Preparing the LiteRT Model
2.4.1. Converting into LiteRT Model
2.4.2. Saving the LiteRT Model
2.4.3. Analyzing the LiteRT Model
2.4.4. Loading a LiteRT Interpreter
2.4.5. Evaluating the LiteRT Model
2.5. Preparing Binaries for C/C++
2.5.1. Converting LiteRT to a C Array
2.5.2. Preparing a Header File for LiteRT C Array
2.5.3. Preparing Supporting Header File for LiteRT C Array
2.5.4. Preparing Main Function to Run TinyML
2.5.5. Converting MNIST Sample into C Array
3. Generating Nios V Processor System
3.1. Building Hardware Design in Platform Designer
3.2. Building Software Design with Ashling RiscFree IDE for Altera FPGAs
3.2.1. Creating a Board Support Package
3.2.2. Building LiteRT for Microcontroller Static Library
3.2.3. Creating an Application Project File
3.2.4. Building the LiteRT TinyML Application
4. Generating Arm Processor System
4.1. GHRD Hardware Design
4.2. Building the Software Design
4.2.1. Arm-Trusted-Firmware
4.2.1.1. Booting from QSPI Flash
4.2.1.2. Running through Ashling RiscFree IDE for Altera FPGAs Debugger
4.2.2. Building LiteRT for Microcontrollers Static Library
4.2.3. Zephyr OS Environment Setup
4.2.4. Building the LiteRT TinyML Application
5. Programming and Running
5.1. Nios V Processor System
5.2. Arm HPS Processor System
5.2.1. Booting from QSPI
5.2.2. Booting via the Debugger
6. Nios V Processor with TinyML Design Example
6.1. Finding Nios V Processor with TinyML Design Example
7. Appendix
7.1. main.cc for Nios V Processor
7.2. main.cc for Arm HPS Processor
8. Document Revision History for the AN 1011: TinyML Applications in Altera FPGAs Using LiteRT for Microcontrollers

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