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The FreeRTOS demo application illustrates the corresponding APIs through controlling of the LEDs and Push-Buttons available on the carrier board.

1. Understanding FreeRTOS GPIO Interfaces

1.1. FreeRTOS GPIO Implementation

The FreeRTOS BSP makes use of the STM32CubeH7 software component to provide a device driver for the STM32H7 GPIO. The driver is configured (enabled / disabled) at the BSP build time, using the HAL_GPIO_MODULE_ENABLED configuration option, defined in the stm32h7xx_hal_conf.h file.

1.2. FreeRTOS GPIO C-Binding API

The GPIO driver implements the following C-binding API:

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