Clarificatons about RT1170 interrupts

[sajithdevidas]

Hi,

I'm currently working with the RT1170 microcontroller using the MCUExpresso IDE. I'm attempting to configure an interrupt on GPIO2, specifically on the 23rd pin.

According to the datasheet, the reset value of the ISR (Interrupt Status Register) register for this GPIO pin should be 0x00

However, when I'm programming and checking through the MCUExpresso, it is displaying the reset value as 0x5fdbffff. Why is it showing this value?

In the datasheet, it is stated that the interrupt bits can be cleared by writing a 1 to the ISR (Interrupt Status Register). When an interrupt is detected, the corresponding bit in the status register will become 1 or 0?.

[DanielRuvalcaba]

Hi,

I would recommend you to take a look to the igpio_input_interrupt_cm7 example of the RT1170-EVK SDK.

I believe it will help you understand the RT interrupts. 

I hope this helps,

Daniel.