Hello - I'm trying to perform a timing test using the AM3517 EVM dev kit. What I'd like to do is trigger an interrupt using either one of the pushbuttons or one of the dip switches from the bank of user switches (S2) Then I have some code which will execute an ISR upon receiving the interrupt. That ISR generates an edge on another GPIO pin. I will use an oscilloscope to measure the amount of time it takes from the moment of triggering the interrupt to the moment of the response edge generated by my code. This code is easy. What isn't (thus far) is figuring out the mapping between the user switches (or pushbuttons) and IRQs, and also what the GPIO pin mappings are for generating the output edge. I would like to use one of the user LEDs for the output edge. Could anyone point me towards a document/page/resource that identifies how the user I/O lines (dip switches, pushbuttons, LEDs) on the evm board map onto the available GPIO numbers and IRQs that the linux kernel can use the gpio-sysfs library with?

Thanks,
Brian