Intel® Simics® Simulator for Altera® FPGAs: Release Notes

Download PDF
ID 870556
Date 12/05/2025
Public
Document Table of Contents
Document Table of Contents x
1. Introduction 2. Intel® Simics® Simulator for Altera® FPGAs 3. Supported Devices and Virtual Platforms 4. Release Strategy 5. Release Notes 6. Document Revision History for Intel® Simics® Simulator for Altera® FPGAs Release Notes
5. Release Notes x
5.1. Release Notes for Version 25.3 5.2. Release Notes for Version 25.1.1 5.3. Release Notes for Version 25.1 5.4. Release Notes for Version 24.3.1 5.5. Release Notes for Version 24.3 5.6. Release Notes for Version 24.2 5.7. Release Notes for Version 24.1 5.8. Release Notes for Version 23.4 5.9. Release Notes for Version 23.3
5.1. Release Notes for Version 25.3 x
5.1.1. New Features 5.1.2. Features Released and Issues Fixed 5.1.3. Known Issues
5.2. Release Notes for Version 25.1.1 x
5.2.1. New Features 5.2.2. Features Released and Issues Fixed 5.2.3. Known Issues
5.3. Release Notes for Version 25.1 x
5.3.1. New Features 5.3.2. Features Released and Issues Fixed 5.3.3. Known Issues
5.4. Release Notes for Version 24.3.1 x
5.4.1. New Features 5.4.2. Features Released and Issues Fixed 5.4.3. Known Issues
5.5. Release Notes for Version 24.3 x
5.5.1. New Features 5.5.2. Features Released and Issues Fixed 5.5.3. Known Issues
5.6. Release Notes for Version 24.2 x
5.6.1. New Features 5.6.2. Features Released and Issues Fixed 5.6.3. Known Issues
5.7. Release Notes for Version 24.1 x
5.7.1. New Features 5.7.2. Features Released and Issues Fixed 5.7.3. Known Issues
5.8. Release Notes for Version 23.4 x
5.8.1. New Features 5.8.2. Features Released and Issues Fixed 5.8.3. Known Issues
5.9. Release Notes for Version 23.3 x
5.9.1. New Features 5.9.2. Features Released and Issues Fixed 5.9.3. Known Issues
1. Introduction
2. Intel® Simics® Simulator for Altera® FPGAs
3. Supported Devices and Virtual Platforms
4. Release Strategy
5. Release Notes
6. Document Revision History for Intel® Simics® Simulator for Altera® FPGAs Release Notes

5.4.3. Known Issues

Table 15.  Known Issues

Issue

Workaround

There is a performance issue during the execution time for QSPI boot as this takes a very long time to boot.

The issue seems to be related to the time it takes UBIFS to manage and optimize the use of flash memory. In silicon, this takes ~ 5 minutes and only occurs the very first time after the QSPI has been flashed. In simulation, because every time you start the simulation, it starts with the same initial QSPI image, it always takes a very long time to boot, but after this, if you call a reset or reboot command from u-boot or Linux, the reboot time is fast. Fixed in 25.1 release
Level Two Title