- MATLAB Version: 184.108.40.2063 (R2012b)
- Operating System: Microsoft Windows 7 Version 6.1 (Build 7601: Service Pack 1)
- Java Version: Java 1.6.0_17-b04 with Sun Microsystems Inc. Java HotSpot™ 64-Bit Server VM mixed mode
- Board: Arduino Mega 2560
- Fixed Step Discrete Solver (tried 1, 0.1 sec)
- External mode enabled.
- Baud rates 9600
- Overrun detection enabled, on pin 13
- Computer Lenovo ThinkPad T410i
Getting error while running Arduino in external mode in simulink(r2012b)
6 views (last 30 days)
Respected sir, I am getting following error when I am trying to communicate arduino mega 2560 with simulink in external mode, I have also followed all instruction provided in manual(from matlab) error:- "Error occurred while executing External Mode MEX-file 'ext_serial_win32_comm':Timed-out waiting for first connect response packet." ,plz help
Gergely Takács on 13 Feb 2014
Same problem here. The external mode does work with certain very simple models. For example an analog input>double conversion>Embedded function for a y = u(5/1024); voltage conversion> scope combination works flawlessly. However, as soon as I add another analog input, I get the same error as sri. The minimum not working example is two analog inputs with two scopes. The exact procedure goes like this: the building process is successful, and it says " Model Successfully Downloaded to Arduino Mega 2560 ". But then, upon trying to connect to the board, the process hangs at " Initializing " and after a while I get " Error occurred while executing External Mode MEX-file 'ext_serial_win32_comm': Timed-out waiting for first connect response packet. " I've also tried to run a simple embedded function with an extended Kalman filter inside (no inputs or outputs on Arduino) and a scope, but the same thing happened.
Any help would be much appreciated.
Rolfe Dlugy-Hegwer on 28 Aug 2013
Thanks for your message, Shri. It looks like a problem with the physical connection or configuration. First test that you can run a model on the Mega 2560, without External mode. Then, enable External mode using ONLY those settings mentioned in http://www.mathworks.com/help/simulink/ug/remotely-monitoring-and-controlling-an-application-on-arduino-hardware.html
Rok Avsec on 20 Dec 2018
I had the same problem. Go and readthis thread. I spent 2 days looking arround but this did the trick in 1 minute.