TRANSMIT SIMULINK DATA TO ARDUINO IDE THROUGH ESP32

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ROOBASRI
ROOBASRI 2025-2-7
编辑： Shaunak 2025-2-18
I am trying to run a Simulink model with ESP32-WROOM (Arduino Compatible) to transmit my simulink data to arduino ide software through esp32 , but I keep getting the following error when trying to connect in External Mode: Error: External Mode Open Protocol CheckData command failed Caused by: - XCP internal error: timeout expired, in response to XCP SYNCH command - Error detected while trying to disconnect Simulink from target application. - XCP error: XCP internal error: No server connected.

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Shaunak
Shaunak 2025-2-18
编辑：Shaunak 2025-2-18
Hi Roobasri,
It is my understanding that you're trying to troubleshoot an issue with the ESP32 board regarding sample time constraints. The ESP32 operates on FreeRTOS, which limits the sample time to 1 millisecond due to its maximum CPU Tick Rate of 1kHz. This limitation might be causing the error you're encountering.
https://www.freertos.org/FreeRTOS_Support_Forum_Archive/December_2017/.
If you're attempting to achieve a sample time shorter than 1 millisecond, you'll need to ensure your application aligns with this constraint. If you require a shorter sample time, you can consider exploring alternative hardware or software solutions that offer higher tick rates.
You can refer to the following community discussion for your reference :
https://www.mathworks.com/matlabcentral/answers/2036041-define-the-sample-time-in-blocks-to-be-built-in-esp32/
Hope this answers your question!

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