AN 981: Using Generic QSPI Flash on SDM Devices

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ID 778053
Date 7/02/2024
Public
Document Table of Contents
Document Table of Contents x
1. Introduction 2. Overview 3. Requirements 4. Implementation Flow 5. Debugging QSPI Flash Device using QSPI Debugger 6. Document Revision History for AN 981: Using Generic QSPI Flash on SDM Devices
3. Requirements x
3.1. QPI Mode (4-4-4 protocol) 3.2. Sector Erase Size 3.3. Maximum QSPI Clock 3.4. QSPI Flash Device Reset Pin 3.5. QSPI Page Program Opcode 3.6. SFDP Parameters
4. Implementation Flow x
4.1. Generating Programming Files using Programming File Generator 4.2. Programming .jic files into QSPI Flash Device 4.3. Hard Processor System (HPS) Support
1. Introduction
2. Overview
3. Requirements
4. Implementation Flow
5. Debugging QSPI Flash Device using QSPI Debugger
6. Document Revision History for AN 981: Using Generic QSPI Flash on SDM Devices

3.2. Sector Erase Size

If your applications require you to access the QSPI flash device during user mode, such as storing user data in a certain address of the flash device, you need to make sure the boundary of your memory space storing your data is aligned to the minimum sector erase size. For example, if the flash device minimum sector erase size is 4 kB, then your memory allocation boundary need to be 4 kB-aligned.

If you are using the Remote System Update feature, you must make sure all partitions have memory allocation aligned to the QSPI flash device minimum erase size.

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