Download laysim-NOELV, laysim-GR740, laysim-GR712RC, and laysim-UT700

Currently the evaluation version of laysim-NOELV (RISC-V/RV64G, quad core), laysim-GR740 (quad core), laysim-GR712RC (dual core), and laysim-UT700 can be downloaded. 

All laysim support Windows and Linux x64 platform including CentOS 7/8, Ubuntu 18.04/22.04, openSUSE 12/15 and Debian 10.3.


Limitation of laysim

The evaluation version of laysim does not have any execution limitation except acquiring 1 year free license as described in user's manual Chapter 2.2. 


1. Download laysim-NOELV Evaluation Version 0.1 (2023/07/26)




Simple Comparison Chart for laysim-GR740/GR712RC/UT700

 
laysim-GR740
laysim-GR712RC
laysim-UT700
(Evaluation Version)
laysim-GR740
laysim-GR712RC
laysim-UT700
(Professional Version)
 Execution Time Limitation  No No
 Need 1 year free licenseYes Permanent License 
 Support Loadable ModulesYes only for Pre-built Models Yes 
 Provide all source codes of 
 loadable modules		    No    Yes 
 Support Shared LibraryNo Yes 
 Provide all interfaces for
 shared library		No Yes 
  How can getfrom blog   Technology transfer from KARI  


2. Download laysim-GR740 Evaluation Version 2.2 (2023/05/30)

- laysim-gr740-mdbt is available from v1.2
- GDB and code coverage are supported from v1.6
- IOMMU is supported from v2.0
- FentISS XNG is fully supported from v2.2

- Professional Version Only (Need separate license for full access)
  a) User loadable SPI, GPIO, UART, PCI and IO module are supported
  b) User loadable external SpW node, 1553B RT and CAN node simulation modules are supported
  c) Shared library is supported (save/restore are supported)
- Contact jwchoi@kari.re.kr

1) Executables

2) Documents
    - Request    [laysim-GR740-003] RTEMS 5.1 Testsuites Result on laysim-GR740 v2.0
    - Request    [laysim-GR740-009] laysim-GR740 v2.0 User Loadable Modules - User's Manual


3. Download laysim-GR712RC Evaluation Version 2.0 (2022/05/13)

1) Executables
    - Download laysim-GR712RC v2.0 Linux x32 Version (Debian 2.6.26 Lenny & EDISOFT)

2) Documents

4. Download laysim-UT700 Evaluation Version 2.1 (2023/10/24)

1) Executables

2) Documents


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laysim Processor Emulator for GR740, GR712RC, UT700 and more..

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I'm Jong-Wook Choi from KARI (Korea Aerospace Research Institute). I'm an on-board flight software engineer in KARI. I've developed the flight software for KOMPSAT-2/3/5/3A, CAS-500 and GEO-KOMPSAT-2A/2B. Currently I involve in developing of the flight software for KOMPSAT-6/7/7A, and KPLO (Korean Pathfinder Lunar Orbiter). For many years, flight software (FSW) has been developed and verified using the software test bed (STB) environment based on the real hardware in KARI. During the development of FSW on the STB, we have experienced lots of annoying problems such as delayed deliver of target hardware, limited concurrent access to the STB from software engineers, and the time and cost to create multiple STBs for different satellites. Thus, software-based satellite simulators have been developed from the beginning of a satellite project to avoid these issues. The software-based simulator enables the FSW to be developed concurrently with the satellite hardware from the in
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Release laysim-GR740 for Evaluation

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laysim-GR740 Quad Core Processor Emulator laysim-GR740 consists of three types of emulators: laysim-gr740 ,  laysim-gr740-dbt  and  laysim-gr740-mdbt . laysim-gr740 is a graphic user interface (GUI)-based and cycle-accurate emulator for the GR740 quad core processor based on interpretation method. It includes an embedded source-level debugger and supports MMU for Linux-SMP and XtratuM-SMP. laysim-gr740-dbt is a GUI-based high-performance and cycle-approximate processor emulator with dynamic binary translation method. laysim-gr740-mdbt  is a new parallel GR740 processor emulator which adopts the multi-thread framework with DBT through 2 years development by KARI. It can satisfy the real-time performance of GR740 on a high-end PC such as Intel i9-11900K @5GHz. All  laysim-gr740 ,  laysim-gr740-dbt  and  laysim-gr740-mdbt  support Windows and Linux x64 platform including CentOS 7/8, Ubuntu 18.04 and Debian 10.3. Also two types of CLI (Command Line Interface) version, laysim-gr740
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