10-15-2018 08:30 AM
Here is simple design aiming to check interrupt handling staff at ARM core:
gpio_sws_3bits is wired to on-bord (ZC706) buttons
According to the AXI GPIO v2.0 manual interrupt is generated once there is an activity on input ports.
I check if this a true with ILA ... and see that nothing happens at axi_gpio_0_ip2intc_irpt line when I push buttons.
Where is a problem ?
10-15-2018 08:56 AM
Well ... I forgot to enable global interrupt (Global Interrupt Enable Register, GIER) and IP interrupt (IP Interrupt Enable Register, IP IER).
Once I enabled them, another problem: the interrupt line is always at '1'.