How do I use multiple input capture blocks in Arduino support package for Simulink?

runing two at the same time generates an error code

[Srijan Jain]

Hey John,

1. Could you share the screenshot/file of your model
2. Which version of Matlab are you using?

[John Kutschman]

[John Kutschman]

2021a

error Reads

Error occurred while executing External Mode MEX-file 'ext_comm':

Timed-out waiting for second connect response packet.

Component: Simulink | Category: Block diagram error

Unable to connect to the 'Arduino Mega 2560' target for 'FileName'

[John Kutschman]

this is the block im using https://www.mathworks.com/help/supportpkg/arduino/ref/inputcapture.html

IC is arduino mega 2650

[Nakul Khadilkar]

Hi John,

Are you running the model the in "Monitor and Tune" mode? Could you try the "Build, Deploy and Start" mode and see if you encounter issues? You might need to write the values to the serial port to see the output in the suggested mode.

[saiful anuar]

I am also having the same problem. i cannot use multiple input capture blocks in the same file, eventhough i am following the guidelines provided in using the input capture block.

i also tried the 'Build, Deploy and Start' recommendation, it still generates an error. i think it is because of heavy data that the COM port need to handle. How to correct this? Thank you very much.