In the IP, make sure that interrupt support is enabled by a parameter for each IP where it is necessary.
1. Double-click the microblaze_0_xlconcat instance created by Block Automation.
2. Modify the number of ports to match the number of interrupts in the design.
3. Click OK .
4. Connect the interrupt from the IP to the microblaze_0_xlconcat InX input port. For example, connect the ip2intc_irpt on the axi_gpio_0 instance to the In0[0:0] port on the microblaze_0_xlconcat .
5. Repeat step 4 for each interrupt in the design.
Note: The In0[0:0] port is the lowest interrupt priority and in the MHS, the left-most signal connected for PORT INTR for the axi_intc instance is the lowest interrupt priority.