Write an sFunction from an arduino code with simulink builder sfunction?

hello evrybody;

I'm working in a project to connect an arduino with CANbus shield with SPI communication in simulink in order to receive canBUS frames in simulink; I've build an sFunction for the code arduino below:

#include <SPI.h>
#include "IDs.h"
#include <mcp_can.h>


// the cs pin of the version after v1.1 is default to D9
// v0.9b and v1.0 is default D10
const int SPI_CS_PIN = 9;

MCP_CAN CAN(SPI_CS_PIN);                                    // Set CS pin

void setup()
{
    Serial.begin(115200);

    while (CAN_OK != CAN.begin(CAN_500KBPS))              // init can bus : baudrate = 500k
    {
        
        //Serial.println(" Init CAN BUS Shield again");
        delay(100);
    }
}


void loop()
{
    unsigned char len = 0;
    unsigned char buf[8];
    
      
    if(CAN_MSGAVAIL == CAN.checkReceive())            // check if data coming
    {
      
        
        CAN.readMsgBuf(&len, buf);    // read data,  len: data length, buf: data buf
        unsigned long canId = CAN.getCanId();   
        
        Serial.print(millis()); // enregistrement du temps
        Serial.print(',');
        Serial.print(canId, DEC);
        Serial.print(','); 
   
        // recopie du message CAN
        for(int i = 0; i<len; i++)    // print the data
        {
            Serial.print(buf[i], DEC);

            if (i<len-1)
            {
            Serial.print(',');
            }
                  
        }
         Serial.println();
         //delay(500);
     }
}

like you see in this code, I have two methods : getCanId() and readMsgBuf(); who permits to me to receive the data, so it's my outputs. in my sfunction I have declared my libraries like this :

#ifndef MATLAB_MEX_FILE
#define ARDUINO 100
#include <Arduino.h>
#include "SPI.h"
#include "SPI.cpp"
#include "mcp_can.h"
#include "mcp_can.cpp"
MCP_CAN CAN(pin9);  
endif

and in the discrete update pane, I declared my initialization function :

#ifndef MATLAB_MEX_FILE
 if (xD[0]!=1){
    

    while (CAN_OK != CAN.begin(CAN_500KBPS))
    {
        delay(100);
    }

 }
 endif

and in the output pane I declared my output function like this :

 #ifndef MATLAB_MEX_FILE

    unsigned char len = 0;
    unsigned char buf[8];
    
      
    if(CAN_MSGAVAIL == CAN.checkReceive())   
    {
        
        CAN.readMsgBuf(&len, buf);    // read data,  len: data length, buf: data buf
        unsigned long canId = CAN.getCanId();   
        ID[0]=canId;                  //first output
        // recopie du message CAN
        for(int i = 0; i<len; i++)    // print the data
        {
            frame[0]=buf[i];          // second output          
        }
    }

#endif

when i build this sfunction it says that the build is done succesfully but when I run the programm it generate for me errors like in this :

../sfunc_sim_arduino_wrapper.cpp:23:13: error: 'pin9' was not declared in this scope 
 MCP_CAN CAN(pin9);   
             ^ 
../sfunc_sim_arduino_wrapper.cpp: In function 'void sfunc_sim_arduino_Outputs_wrapper(real_T*, real_T*, const real_T*, const uint8_T*, int_T)': 
../sfunc_sim_arduino_wrapper.cpp:80:8: error: expected unqualified-id before string constant 
 extern "C" void sfunc_sim_arduino_Update_wrapper(real_T *ID, 
        ^ 
../sfunc_sim_arduino_wrapper.cpp:104:1: error: expected '}' at end of input 
 } 
 ^ 
gmake: *** [sfunc_sim_arduino_wrapper.o] Error 1 
 
D:\semestre4_stageM2_evry\SIMULINK\arduno_simulnk_ert_rtw>echo The make command returned an error of 2  
The make command returned an error of 2 
 
D:\semestre4_stageM2_evry\SIMULINK\arduno_simulnk_ert_rtw>An_error_occurred_during_the_call_to_make 
'An_error_occurred_during_the_call_to_make' n'est pas reconnu en tant que commande interne 
ou externe, un programme exécutable ou un fichier de commandes. 
### Creating HTML report file arduno_simulnk_codegen_rpt.html
### Build procedure for model: 'arduno_simulnk' aborted due to an error.
Error(s) encountered while building "arduno_simulnk":
### Failed to generate all binary outputs.

so if someone have worked in this already, I'dlike some suggestions for my code if there is any imperfections please; any comments are welcome.