timerAndGpioInterruptDemo Example

The GPIO interrupt example (timerAndGpioInterruptDemo directory) provides example code for implementing a rising edge interrupt trigger with a GPIO pin. When an interrupt occurs, a UART terminal displays Hello world and then the timer interval. It continues to print the timer interval until you suspend or stop the application.

Hello world
BSP_MACHINE_TIMER 0
BSP_MACHINE_TIMER 1
...

In this example:

void trap() traps entries on exceptions and interrupt events
void externalInterrupt() triggers a GPIO interrupt event