Hello, i have a problem with the Real-Time features of MatLab. I try to run some real time examples, but i always get an error message. An error occurred while running the simulation and the simulation was terminated Caused by: Error reported by S-function 'sldrtsync' in 'sldrtex_vdp/Real-Time Synchronization': Hardware timer cannot be allocated. Real-time kernel cannot run. I searched on google but did not really found something. I am running Matlab 2019b for academic use on a Windoes 10 System. Thanks in advance!

Real time kernel Error. S-function error.

55 次查看（过去 30 天）

显示更早的评论

Christopher Schlüting 2020-7-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/568887-real-time-kernel-error-s-function-error

评论： Jizheng 2025-9-1，1:49

采纳的回答： Jan Houska

Hello, i have a problem with the Real-Time features of MatLab.

I try to run some real time examples, but i always get an error message.

An error occurred while running the simulation and the simulation was terminated

Caused by:

Error reported by S-function 'sldrtsync' in 'sldrtex_vdp/Real-Time Synchronization': Hardware timer cannot be allocated. Real-time kernel cannot run.

I searched on google but did not really found something.

I am running Matlab 2019b for academic use on a Windoes 10 System.

Thanks in advance!

6 个评论
显示 4更早的评论隐藏 4更早的评论

Nazmi Rosly 2021-8-23

I also faced this problem. I have tried uninstall and install back the realtime kernel but it seems not to work

Error reported by S-function 'sldrtoo' in 'scope/ThingSpeak Output': Hardware timer cannot be allocated. Real-time kernel cannot run.

Walter Roberson 2021-8-23

Possibly that message could also be generated if the design required more hardware timers than existed for the device. It has been years since I saw the messages posted for that context, so I do not recall at the moment whether that case would generate this message or would generate a different more-specific message.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Jan Houska 2023-2-16

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/568887-real-time-kernel-error-s-function-error#answer_1172955

Hello,

the inability to allocate hardware timer for the real-time kernel is most often caused by hardware or software incompatibility between the real-time kernel and the operating system or the computer mainboard.

First, please try to use the latest available release of MATLAB and Simulink Desktop Real-Time, because compatibility between the real-time kernel and latest updates of operating systems is being constantly improved from release to release.

If you are already using the latest version of Simulink Desktop Real-Time and think that the reason is hardware incompatibility, please go to Device Manager and search the System Devices section for High Precision Event Timer (HPET). If the HPET device is not present, it may be disabled in BIOS settings and needs to be enabled there.

Jan

7 个评论
显示 5更早的评论隐藏 5更早的评论

Jan Houska 2025-8-25，12:33

Hi Jizheng,

please update to the latest R2023a Update 8, then reinstall the kernel using sldrtkernel -setup. The update contains some compatibility improvements with Windows 11 and has a good chance to help.

Good Luck, Jan

Jizheng 2025-9-1，1:49

Hi Jan

That works！Thanks a lot！

Jizheng

请先登录，再进行评论。

类别

Real-Time Simulation and Testing Simulink Desktop Real-Time Troubleshooting in Simulink Desktop Real-Time

在 Help Center 和 File Exchange 中查找有关 Troubleshooting in Simulink Desktop Real-Time 的更多信息

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by