问用于汽车的CANbus仿真

EN

#include <SPI.h>
#include <SD.h>
#include <Canbus.h>
#include <defaults.h>
#include <global.h>
#include <mcp2515.h>
#include <mcp2515_defs.h>

const int chipSelect = 9;
File dataFile;

void setup() {
  // put your setup code here, to run once:
  pinMode(chipSelect, OUTPUT);
  Serial.begin(115200); // For debug use
  Serial.println("CAN Read - Testing receival of CAN Bus message");
  delay(1000);
  if (Canbus.init(CANSPEED_500)) //Initialise MCP2515 CAN controller at the specified speed
    Serial.println("CAN Init ok:  500k");
  else if (Canbus.init(CANSPEED_250)) //Initialise MCP2515 CAN controller at the specified speed
    Serial.println("CAN Init ok:  250k");
  else if (Canbus.init(CANSPEED_125)) //Initialise MCP2515 CAN controller at the specified speed
    Serial.println("CAN Init ok:  125k");
  else
    Serial.println("Can't init CAN");
  delay(1000);
  if (!SD.begin(chipSelect)) {
    Serial.println("uSD card failed to initialize, or is not present");
    return;
  }
  else {
    Serial.println("uSD card initialized.");
    delay(1500);
  }
  dataFile = SD.open("caninfo.txt", FILE_WRITE);
}

void loop() {
  tCAN message;
  if (mcp2515_check_message())
  {
    if (mcp2515_get_message(&message))
    {
      if (dataFile)   {
        int timeStamp = millis();
        //write to uSD card
        dataFile.print(timeStamp);
        dataFile.print("ID: ");
        dataFile.print(message.id, HEX);
        dataFile.print(", ");
        dataFile.print("Data: ");
        dataFile.print(message.header.length, DEC);
        for (int i = 0; i < message.header.length; i++)
        {
          dataFile.print(message.data[i], HEX);
          dataFile.print(" ");
        }
        dataFile.println("");
        Serial.println("Writing to SD");
      }
      else
      {
        Serial.println("Problem writing to SD");
      }
    }
  }
}