Note

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GPIO Example

Introduction

This example is a GPIO HAL regression test program, covering core capabilities such as instance creation, mode switching, level read/write, toggle, and interrupt registration.

Source code location: src/rtsmart/examples/peripheral/gpio/test_gpio.c

Example Behavior

• Use FPIOA to map test pins to GPIO function

• Test GPIO instance creation/destruction and exception parameters

• Test input/output mode switching and status reading

• Test high/low level writing and toggle

• Test interrupt registration, triggering, and unregistration process

Key Interfaces

• drv_fpioa_set_pin_func()

• drv_gpio_inst_create() / drv_gpio_inst_destroy()

• drv_gpio_mode_set() / drv_gpio_mode_get()

• drv_gpio_value_set() / drv_gpio_value_get() / drv_gpio_toggle()

• drv_gpio_register_irq() / drv_gpio_unregister_irq() (covered by the example interrupt test)

Build and Run

cd src/rtsmart/examples/peripheral/gpio
make
./test_gpio

This example has no command-line arguments.

Tip

For GPIO interface details, please refer to the GPIO API Documentation.