MCP2515 and SPI only returns "0"

Development Boards Arduino
1

I am working on a project to implement CAN bus using the MCP2515. This is the first time I have used SPI and I am having a difficult time getting it to work.

First I tried several of the libraries on the internet. Bottom line is couldn’t get any of them working, so to enhance my understanding of how this all works I decided to try and write my own functions (eventually it will be turned into a library for my application). The problem is it appears the only thing the SPI.transfer function will return is “0”. At this point I am at a loss as to the next things to try. So what should I try next? How can I test this to see what is going wrong?

#include <SPI.h>

#define CAN_cs 10

void setup(){
  pinMode(CAN_cs, OUTPUT);
  digitalWrite(CAN_cs, HIGH);
  Serial.begin(9600);
 
  SPI.begin();
  CAN_RESET();
  delay(100);
  CAN_WRITE(0xF, B00001010);
 //write to enable loopback mode
  delay(100);
  byte stat;
  stat=CAN_READ(0xE);
 Serial.print(stat); 
  
}
void loop(){
  
}
void CAN_WRITE(byte reg, byte value){
  digitalWrite(CAN_cs, LOW);
  SPI.transfer(B00000010);
  SPI.transfer(reg);
  SPI.transfer(value);
  digitalWrite(CAN_cs, HIGH);
}
void CAN_RESET(){
  digitalWrite(CAN_cs, LOW);
  SPI.transfer(B11000000);
  digitalWrite(CAN_cs, HIGH);
}
byte CAN_READ(byte reg){
  byte data;
  digitalWrite(CAN_cs, LOW);
  SPI.transfer(B00000011);
  SPI.transfer(reg);
  data=SPI.transfer(0);
  digitalWrite(CAN_cs, HIGH);
  return(data);
}

Thanks