DM365 interrrupt

Hi, 

I have a project run on DM365 without OS,

now I want to set the interrupt.

In DM365 ARM Subsystem document:

To help speed up the ISR, the AINTC provides two vectors into the ARM’s interrupt entry table, which
correspond to the highest priority effective IRQ and FIQ interrupts. This vector is generated by modifying a
base address with a priority index. The priority index takes the size of each interrupt entry into account
using the following formulas:
IRQENTRY = EABASE + ((highest priority IRQ EVT# + 1) * SIZE)
FIQENTRY = EABASE + ((highest priority FIQ EVT# + 1) * SIZE)
The EABASE base address is contained in a register. The SIZE value is a programmable register field,
which selects 4, 8, 16, or 32 bytes for each interrupt table entry. The IRQENTRY or FIQENTRY register is
read by the ARM, depending on which type of interrupt it is servicing.

However, In fact , It works not as the document.

It alway jump to the 0x18, not the IRQENTRY address when an interrupt occurs.

Why?