GMF App Utils

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GMF App Utils provides common helper interfaces for ESP-GMF application development, consolidating peripheral initialization, system management, and debugging interfaces into a unified set of APIs and configuration options. It offers reusable interfaces for audio codecs, I2C, SD card, Wi-Fi connectivity, CLI, and unit test helpers, reducing repetitive low-level initialization code.

Key Features

  • Peripheral initialization: covers audio codecs (I2S standard / TDM / PDM, playback and recording configured independently), I2C bus, SD card, and Wi-Fi connectivity

  • Board abstraction: obtain board device handles via esp_board_manager, decoupling application code from specific hardware

  • System management: performance monitoring interface for runtime statistics including task, memory, and CPU usage

  • Serial CLI: built-in console interface for debugging pipelines and elements in a REPL

  • Configuration-driven: Wi-Fi and unit test parameters managed via menuconfig without code changes

  • Lightweight: all features can be independently included or excluded; unused sub-modules consume no runtime resources

  • Unit test helpers: Unity test entry, memory-leak detection, and TCP/IP test resource pre-allocation APIs

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