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Simulating a GPIO interrupt - FRDM-KL25Z

K John

I am trying to simulate a press-key interrupt for the FRDM-KL25Z board.

Everything seems to be set up. For example, I can access all the registers in the simulation mode. The only problem is that I am not sure how to simulate a real interrupt.

I know that PTD->PDIR (Port Data Input Register) is read-only. I tried to change its value with the use of its address in the memory, but that does not trigger an interrupt.

Currently, I simulate an interrupt on PORTD, e.g. as follows:

PTD->ISFR = 0x5;
NVIC_SetPendingIRQ(PORTD_IRQn);

But I think there should be a way to set a register and have the interrupt triggered. Then the ISFR and the NVIC registers should be changed automatically. Right?

Any help is appreciated.

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