公开(公告)号：US20230252153A1

公开(公告)日：2023-08-10

申请号：US18010297

申请日：2021-02-05

Applicant: Hitachi Astemo, Ltd.

Inventor： Shun KINUGASA ,  Kenji ANDO ,  Yusuke ABE

IPC: G06F21/57 ,  G06F8/654

CPC classification number: G06F21/572 ,  G06F8/654 ,  G06F2221/033

Abstract: Provided is a technique for enabling software having different memory maps to be written in a nonvolatile memory of an electronic control device in reprogramming of control software.
The electronic control device includes a microcomputer including a CPU and a nonvolatile memory. The nonvolatile memory includes activation software, control software, and validity confirmation information for confirming validity of the control software. A storage area of the validity confirmation information in the nonvolatile memory is different from a storage area of the activation software.