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Vincent
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Simulink Arduino - size of file loaded onto the Arduino

Asked by Vincent
on 3 Oct 2013
Latest activity Answered by Rolfe Dlugy-Hegwer on 10 Nov 2013
As the Arduino Uno only has 32K of program space, I was wondering how to tell the size of the resulting Simulink Target program that gets loaded on the Arduino. I found the ".hex" file, but it's 72K, so it can be the program that gets loaded onto the Arduino.

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1 Answer

Answer by Rolfe Dlugy-Hegwer on 10 Nov 2013
 Accepted Answer

You're correct. The hex file you see is not the size of the hex file the software uploaded to the Arduino hardware. Unfortunately, with the current releases (including 13b), the real file size isn't available.
If you're having problems with the program size exceeding the size of the flash on your board, you have two options:
  1. Reduce the program size, or
  2. Use a board with more memory (e.g., Mega2560, Due).
To reduce the program size try to:
  • Simplify the model
  • Remove unused blocks
  • Reduce the size of signals and data
  • If you enabled it, disable External mode

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