Edge Impulse Example: standalone inferencing (Ambiq Apollo 4)

This runs an exported impulse on Ambiq Apollo 4 EVB.

Prerequisites

1. Apollo 4 EVB (Plus / Blue / Blue Plus)

2. GCC v13.x.x

3. Segger Jlink software

4. In Edge Impulse Platform: deploy the impulse you want to test as a C++ library and copy the contents of the resulting ZIP (model-parameters, tflite-model and edge-impulse-sdk folders) into src/edge-impulse

5. Paste the raw features array in the following array in src/ei_main.cpp

static const float features[] = {
    // copy raw features here
};

Build

To build the application:

make -j `nproc`

To clean the build:

make clean

Flash

To flash the board, first connect the EVK via Segger USB port on the board and run:

make deploy

Debug on VsCode

Important

You need to install JLink software and Cortex-Debug extension. To start a debug session, make sure to connect the board to J6 (JLINK USB) and press F5.

Connect to the board

Connect USB-C cables to both APOLLO4 USB connectors. The board will show as a USB device.