公开(公告)号：US20250036504A1

公开(公告)日：2025-01-30

申请号：US18225471

申请日：2023-07-24

Applicant: Silicon Laboratories Inc.

Inventor： Thomas David

IPC: G06F11/07 ,  G06F8/65

Abstract: Methods of performing updates to a software image that is disposed in a read only memory or a one time programmable memory device are disclosed. The method includes causing an ECC error at the beginning of a function that has been modified. This ECC error causes an exception. The exception handler determines the address where the ECC error was detected was located and searches a dictionary. This dictionary contains entries that each have an original address in the ROM or OTP Memory and the patch address in a nonvolatile writable memory. The exception handler then causes the processing unit to jump to the patch address, where a modified function is located.