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US 2022/0035545 A1Published application
Error restoring method, microcontroller unit using the same, and battery device including the microcontroller unit
AssigneeLG Chem, Ltd.
InventorHojoon LEE
Life of this patent
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Abstract
A micro controller unit (MCU) includes a flash memory, wherein the flash memory determines a key value of an application when the MCU is powered on, and, when the key value of the application is invalid, the flash memory enters a mode that enables reprogramming of the flash memory.
Claims11
A microcontroller unit (MCU) comprising a flash memory, wherein the flash memory is configured to:
- determine a key value of an application stored in the flash memory when the MCU is powered on, and
- when the key value of the application is invalid, enter a mode that enables reprogramming of the flash memory.
An error restoring method of a microcontroller unit (MCU) that includes a flash memory, the flash memory including a flash boot loader, an application block, and an application key block, the method comprising:
- when the MCU is powered on, determining, by the flash boot loader, an application key value in the application key block;
- and
- when the application key value is invalid in the determining the application key value, staying in the flash boot loader for enabling reprogramming of the flash memory.
A battery device, comprising:
- a battery cell assembly including a plurality of battery cells that are electrically connected to each other;
- a micro controller unit (MCU) that includes a flash memory, the flash memory being configured to store an application for battery management of the battery cell assembly;
- and
- a battery management system that performs the battery management according to the application executed by the MCU,
- wherein when the MCU is powered on, the flash memory is configured to determine a key value of the application, and
- wherein when the key value of the application is invalid, the flash memory is configured to enter a mode that enables reprogramming of the flash memory.
3 more elements
Dependencies are inferred from the claim text.