PSA API Specifications

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PSA API documents published by Arm

View the Project on GitHub GlobalPlatform/psa-api

PSA Firmware Update API

The Firmware Update API defines a standard firmware interface for installing firmware updates.

See the PSA API page for other PSA APIs.

Specification source files, updates, and discussions, as well as reference headers and example code, can be found in the associated PSA API GitHub project.

Test suites to verify a correct implementation can be found in the PSA API Test suites.

Specifications

Version     Publication
1.0.1 HTML ↓ PDF September 2025
1.0.0   ↓ PDF August 2023
1.0 Beta   ↓ PDF October 2022
0.7 Beta HTML ↓ PDF January 2021

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