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edit approved Mar 17, 2019 at 19:57
DataFiddler
edit approved Mar 17, 2019 at 19:57
DataFiddler
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I am assuming the default pin configuration is pin 10(SS), 11(MOSI), 12(MISO), 13(CLK) from a default setup, SPI.begin(). The code compiles OK. Not sure about the int valuex and using the SPI.transfer() function.

#include <SPI.h>

int value1 = 0x8026;
 
int value2 = 0x0801;

 
int value3 = 0x8027;
 
int value4 = 0x0000;

void setup (void)
 
{
 
  Serial.begin (9600);
 
  Serial.println ("Starting");

 
  digitalWrite(SS, HIGH);  // ensure SS stays high for now
 

  // Put SCK, MOSI, SS pins into output mode
 
  // also put SCK, MOSI into LOW state, and SS into HIGH state.
 
  // Then put SPI hardware into Master mode and turn SPI on
  SPI.begin ();
 

  // Slow down the master a bit
  SPI.setClockDivider(SPI_CLOCK_DIV4);

}  // end of setup

void loop (void)
{
  // enable Slave Select
 
  digitalWrite(SS, LOW); 
   
  SPI.transfer (1);   // initiate transmission

 
    SPI.transfer (value1);
    SPI.transfer (value2);
    SPI.transfer (value3);
    SPI.transfer (value4);

  // disable Slave Select
 
  digitalWrite(SS, HIGH);
 

Delaydelay (1000); 
}

I am assuming the default pin configuration is pin 10(SS), 11(MOSI), 12(MISO), 13(CLK) from a default setup, SPI.begin(). The code compiles OK. Not sure about the int valuex and using the SPI.transfer() function.

#include <SPI.h>

int value1 = 0x8026;
 
int value2 = 0x0801;

 
int value3 = 0x8027;
 
int value4 = 0x0000;

void setup (void)
 
{
 
  Serial.begin (9600);
 
  Serial.println ("Starting");

 
  digitalWrite(SS, HIGH);  // ensure SS stays high for now
 

  // Put SCK, MOSI, SS pins into output mode
 
  // also put SCK, MOSI into LOW state, and SS into HIGH state.
 
  // Then put SPI hardware into Master mode and turn SPI on
  SPI.begin ();
 

  // Slow down the master a bit
  SPI.setClockDivider(SPI_CLOCK_DIV4);

}  // end of setup

void loop (void)
{
  // enable Slave Select
 
  digitalWrite(SS, LOW); 
   
  SPI.transfer (1);   // initiate transmission

 
    SPI.transfer (value1);
    SPI.transfer (value2);
    SPI.transfer (value3);
    SPI.transfer (value4);

  // disable Slave Select
 
  digitalWrite(SS, HIGH);
 

Delay (1000); 
}

I am assuming the default pin configuration is pin 10(SS), 11(MOSI), 12(MISO), 13(CLK) from a default setup, SPI.begin(). The code compiles OK. Not sure about the int valuex and using the SPI.transfer() function.

#include <SPI.h>

int value1 = 0x8026;
int value2 = 0x0801;
int value3 = 0x8027;
int value4 = 0x0000;

void setup (void)
{
  Serial.begin (9600);
  Serial.println ("Starting");
  digitalWrite(SS, HIGH);  // ensure SS stays high for now

  // Put SCK, MOSI, SS pins into output mode
  // also put SCK, MOSI into LOW state, and SS into HIGH state.
  // Then put SPI hardware into Master mode and turn SPI on
  SPI.begin ();

  // Slow down the master a bit
  SPI.setClockDivider(SPI_CLOCK_DIV4);

}  // end of setup

void loop (void)
{
  // enable Slave Select
  digitalWrite(SS, LOW); 
   
  SPI.transfer (1);   // initiate transmission
  SPI.transfer (value1);
  SPI.transfer (value2);
  SPI.transfer (value3);
  SPI.transfer (value4);

  // disable Slave Select
  digitalWrite(SS, HIGH);

delay (1000); 
}
added 179 characters in body
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Majenko
Majenko
  • 105.9k
  • 5
  • 82
  • 139

I am assuming the default pin configuration is pin 10(SS), 11(MOSI), 12(MISO), 13(CLK) from a default setup, SPI.begin(). The code compiles OK. Not sure about the int valuex and using the SPI.transfer() function.

*** There are carats around SPI.h!!! New at this...

#include SPI.h

int value1 = 0x8026;

int value2 = 0x0801;

int value3 = 0x8027;

int value4 = 0x0000;

void setup (void)

{

Serial.begin (9600);

Serial.println ("Starting");

digitalWrite(SS, HIGH); // ensure SS stays high for now

// Put SCK, MOSI, SS pins into output mode

// also put SCK, MOSI into LOW state, and SS into HIGH state.

// Then put SPI hardware into Master mode and turn SPI on SPI.begin ();

// Slow down the master a bit SPI.setClockDivider(SPI_CLOCK_DIV4);

} // end of setup

void loop (void) { // enable Slave Select

digitalWrite(SS, LOW);

SPI.transfer (1); // initiate transmission

#include <SPI.h>

int value1 = 0x8026;

int value2 = 0x0801;


int value3 = 0x8027;

int value4 = 0x0000;

void setup (void)

{

  Serial.begin (9600);

  Serial.println ("Starting");


  digitalWrite(SS, HIGH);  // ensure SS stays high for now


  // Put SCK, MOSI, SS pins into output mode

  // also put SCK, MOSI into LOW state, and SS into HIGH state.

  // Then put SPI hardware into Master mode and turn SPI on
  SPI.begin ();


  // Slow down the master a bit
  SPI.setClockDivider(SPI_CLOCK_DIV4);

}  // end of setup

void loop (void)
{
  // enable Slave Select

  digitalWrite(SS, LOW); 
   
  SPI.transfer (1);   // initiate transmission


    SPI.transfer (value1);
    SPI.transfer (value2);
    SPI.transfer (value3);
    SPI.transfer (value4);

  // disable Slave Select

  digitalWrite(SS, HIGH);


Delay (1000); 
}

// disable Slave Select

digitalWrite(SS, HIGH);

Delay (1000); }

I am assuming the default pin configuration is pin 10(SS), 11(MOSI), 12(MISO), 13(CLK) from a default setup, SPI.begin(). The code compiles OK. Not sure about the int valuex and using the SPI.transfer() function.

*** There are carats around SPI.h!!! New at this...

#include SPI.h

int value1 = 0x8026;

int value2 = 0x0801;

int value3 = 0x8027;

int value4 = 0x0000;

void setup (void)

{

Serial.begin (9600);

Serial.println ("Starting");

digitalWrite(SS, HIGH); // ensure SS stays high for now

// Put SCK, MOSI, SS pins into output mode

// also put SCK, MOSI into LOW state, and SS into HIGH state.

// Then put SPI hardware into Master mode and turn SPI on SPI.begin ();

// Slow down the master a bit SPI.setClockDivider(SPI_CLOCK_DIV4);

} // end of setup

void loop (void) { // enable Slave Select

digitalWrite(SS, LOW);

SPI.transfer (1); // initiate transmission

SPI.transfer (value1);
SPI.transfer (value2);
SPI.transfer (value3);
SPI.transfer (value4);

// disable Slave Select

digitalWrite(SS, HIGH);

Delay (1000); }

I am assuming the default pin configuration is pin 10(SS), 11(MOSI), 12(MISO), 13(CLK) from a default setup, SPI.begin(). The code compiles OK. Not sure about the int valuex and using the SPI.transfer() function.

#include <SPI.h>

int value1 = 0x8026;

int value2 = 0x0801;


int value3 = 0x8027;

int value4 = 0x0000;

void setup (void)

{

  Serial.begin (9600);

  Serial.println ("Starting");


  digitalWrite(SS, HIGH);  // ensure SS stays high for now


  // Put SCK, MOSI, SS pins into output mode

  // also put SCK, MOSI into LOW state, and SS into HIGH state.

  // Then put SPI hardware into Master mode and turn SPI on
  SPI.begin ();


  // Slow down the master a bit
  SPI.setClockDivider(SPI_CLOCK_DIV4);

}  // end of setup

void loop (void)
{
  // enable Slave Select

  digitalWrite(SS, LOW); 
   
  SPI.transfer (1);   // initiate transmission


    SPI.transfer (value1);
    SPI.transfer (value2);
    SPI.transfer (value3);
    SPI.transfer (value4);

  // disable Slave Select

  digitalWrite(SS, HIGH);


Delay (1000); 
}
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howdyrichard
howdyrichard
  • 11
  • 2

Sending command through SPI on Arduino UNO

I am assuming the default pin configuration is pin 10(SS), 11(MOSI), 12(MISO), 13(CLK) from a default setup, SPI.begin(). The code compiles OK. Not sure about the int valuex and using the SPI.transfer() function.

*** There are carats around SPI.h!!! New at this...

#include SPI.h

int value1 = 0x8026;

int value2 = 0x0801;

int value3 = 0x8027;

int value4 = 0x0000;

void setup (void)

{

Serial.begin (9600);

Serial.println ("Starting");

digitalWrite(SS, HIGH); // ensure SS stays high for now

// Put SCK, MOSI, SS pins into output mode

// also put SCK, MOSI into LOW state, and SS into HIGH state.

// Then put SPI hardware into Master mode and turn SPI on SPI.begin ();

// Slow down the master a bit SPI.setClockDivider(SPI_CLOCK_DIV4);

} // end of setup

void loop (void) { // enable Slave Select

digitalWrite(SS, LOW);

SPI.transfer (1); // initiate transmission

SPI.transfer (value1);
SPI.transfer (value2);
SPI.transfer (value3);
SPI.transfer (value4);

// disable Slave Select

digitalWrite(SS, HIGH);

Delay (1000); }