Implementation of SPI Function-Simulink

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Daniel Mérida
Daniel Mérida 2014-8-4
Hello everyone, Im trying to implement this SPI fucntion in a Simulink block to stablish communication with my Arduino MEga 2560 . It's an easy function, the problem is i dont't know where to start, Ive read for several days information in Internet,seen tutroial about S-functions, but I found the info really confusing.This is my function code :
#include SPI.h
void setup() {}
// the loop routine runs over and over again forever:
void loop() {}
// This is the generic initialization function to set up the Arduino to communicate with the chip.
void SPI_init() {
// initialize SPI for the dSPIN chip's needs:
// most significant bit first,
// SPI clock not to exceed 5MHz,
// SPI_MODE0 (clock idle low, latch data on rising edge of clock)
SPI.begin();
SPI.setBitOrder(MSBFIRST);
SPI.setClockDivider(SPI_CLOCK_DIV16); // System clock: 16MHz; Stepper SPI runs at 1MHz
SPI.setDataMode(SPI_MODE0);
Serial.println("SPI configured!");
}
I would really apreciate if someone could help me out :) :)

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