How to create custom blocks in Simulink for Arduino

Hi, My name is Samanth, I want to create my own custom blocks like the servo motor write and read in simulink. I want to use these custom blocks in Arduino microcontroller boards.

I have already tried this stuff and I am getting linkage errors so, I just want to check whether I am doing the things properly. So, I am requesting you guys to help me find some references which would explain the procedure step-by-step.

I am thinking that I am doing some mistake in the parameters pane part (Which appears by double clicking the S-Function builder).

I was doing like this

I have placed the following part under Libraries pane #ifndef MATLAB_MEX_FILE #include "Arduino.h" #include "Servo.h" #endif

I have seen some reference material and placed #if condition if I have removed it I am getting errors as

C:\Users\Nani\Desktop\samanth\simulonk models\avr/pgmspace.h(211) : error C2061: syntax error : identifier '__attribute__'

I have not modified anything in the header file which was in Arduino package.

Under the outputs pane I have kept the code as follows

if(xD[0]==1) { /*don't do anything for MEX-file generation*/ #ifdef MATLAB_MEX_FILE

//Custom code #endif }

I have followed a site to place the #if condition at the top.

Under the Discreete update pane I have kept the code as follows

if(xD[0]!=1) { #ifdef MATLAB_MEX_FILE // Custom code

#endif }

Can anyone correct me if I am doing wrong please.

Any step by step reference would be a lot helpful.

Thank you for the help in advance.

[Kaustubha Govind]

I pointed to some resources on your other question: http://www.mathworks.com/matlabcentral/answers/73598-which-compiler-should-i-use-to-create-custom-blocks-which-i-intend-to-build-in-to-arduino-microcontr

Answer 1

[Ryan G]

This was just posted on the simulink blog. That may help you figure this out.

When creating a custom block for the first time I would recommend something simple like making the LED blink so you know you're doing it right.

Answer 2

[Mohith Prabhu]

Refer the below documentation links for creating a custom Simulink Device Driver block using Arduino library.

• Create Custom Device Driver Block for Arduino Library

• Create a device driver block to access specific features of your hardware board