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Serial and external mode Arduino

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Matthieu GATINE
Matthieu GATINE on 4 Dec 2018
Commented: Hak YAL on 10 Oct 2021
Hi,
I have deployed a simulink subsystem to my Arduino UNO and I have change the S-function block to a serial transmit arduino block and a serial receiving arduino block.
I'm trying to run my model on external mode but I have this error message : "Both Serial Receive block and External mode use Pin number 0"
How can I use external mode and serial port at the same time ?
Thank you.

Answers (1)

Hamidreza Hoshyarmanesh
Hamidreza Hoshyarmanesh on 22 Mar 2019
You need to change the port number on your serial transmit block to 1 or 2 (depending on the type of Arduino you were using). The port 0 is assigned to programming Arduino as a slave device for Simulink not as a host for other slaves which are connected to Arduino serial ports.
Regards,
Hamidreza
  2 Comments
Anthony Comer
Anthony Comer on 9 May 2021
I've tried changing it yet it comes up with a box saying "Serial Trasmit block Parameter Port number must be 0."..I'm in a loop!
Hak YAL
Hak YAL on 10 Oct 2021
I have the same problem and I would be happy to hear the solution.

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