GPIO Input Interrupt

Table of Contents

• Introduction
• Supported Combinations
• Steps to Run the Example
• See Also
• Sample Output

Introduction

This example configures a GPIO pin in input mode and configures it to generate interrupt on rising edge. The application waits for 5 key presses, prints the number of times the keys are pressed and exits.

Supported Combinations

Parameter	Value
CPU + OS	r5fss0-0 nortos
Toolchain	ti-arm-clang
Board	am64x-evm
Example folder	examples/drivers/gpio/gpio_input_interrupt/

Steps to Run the Example

• When using CCS projects to build, import the CCS project for the required combination and build it using the CCS project menu (see Using SDK with CCS Projects).
• When using makefiles to build, note the required combination and build using make command (see Using SDK with Makefiles)
• Launch a CCS debug session and run the executable, see CCS Launch, Load and Run
• Press and release SW5 button on the EVM to generate the trigger GPIO interrupt. This button is connected to GPIO1_43.

See Also

GPIO

Sample Output

Shown below is a sample output when the application is run,

GPIO Input Interrupt Test Started ...
GPIO Interrupt Configured for Rising Edge (Button release will trigger interrupt) ...
Press and release SW5 button on EVM to trigger GPIO interrupt ...
Key is pressed 0 times
Key is pressed 0 times
Key is pressed 0 times
Key is pressed 0 times
Key is pressed 0 times
Key is pressed 0 times
Key is pressed 0 times
Key is pressed 0 times
Key is pressed 0 times
Key is pressed 0 times
Key is pressed 1 times
Key is pressed 2 times
Key is pressed 5 times
GPIO Input Interrupt Test Passed!!
All tests have passed!!