How to Solve the default handler ISR . In my code PC struck in default handler function in startup_stm32l476xx.s file

[Skuma.12]

Hi,

In my code Program counter struck in Default hander routine.

  .section .text.Default_Handler,"ax",%progbits

Default_Handler:

Infinite_Loop:

b Infinite_Loop

.size Default_Handler, .-Default_Handler

how to know what is the cause for this and how to overcome it.

When I checked the register values of the following

SP ->0x20017f70

HFSR -> 0x40000000

CFSR -> 0x10000