Title:
IN-VEHICLE ELECTRONIC CONTROL DEVICE AND MEMORY CONTROL METHOD
Document Type and Number:
Japanese Patent JP2023104466
Kind Code:
A
Abstract:
To ensure normality of data read from a nonvolatile memory.SOLUTION: An in-vehicle electronic control device includes a microcomputer including a nonvolatile memory and a volatile memory. The nonvolatile memory is composed of logical blocks obtained by dividing a storage area thereof into smaller areas than that of function blocks. The microcomputer detects an ECC error in data stored in the nonvolatile memory, performs, when the ECC error is detected, CRC calculation of the logical block in which the ECC error is detected, and determines that the data stored in the nonvolatile memory is abnormal when a CRC error is detected.SELECTED DRAWING: Figure 5
Inventors:
OSHIMA MIDORI
Application Number:
JP2022005463A
Publication Date:
July 28, 2023
Filing Date:
January 18, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD
International Classes:
G06F11/10
Attorney, Agent or Firm:
Fujio Patent Attorneys Corporation