The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 05, 2024
Filed:
Mar. 23, 2022
Texas Instruments Incorporated, Dallas, TX (US);
Sira Parasurama Rao, Richmond, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
In described examples, a flash memory bank includes application and bootloader portions. The application portion stores first instructions for performing an interrupt service routine (ISR). The bootloader portion stores second instructions for: causing the flash memory bank to receive new first instructions for performing the ISR and write the new first instructions to replace old first instructions, and executing the new first instructions. The new first instructions execute the following steps in order. First, while maintaining an interrupt response, initializing variables specified by the new first instructions and not specified by the old first instructions, and not changing variables specified by the old first instructions. Second, after determining there is no interrupt response in process, disabling the interrupt response and proceeding to a third step. Third, initializing a stack, updating an interrupt vector, and updating a function pointer. Fourth, re-enabling the interrupt response.