- Read CAN BUS Code
#include <Arduino.h>
#include <mcp_can.h>
#include <mcp_can_dfs.h>
#define CANint 2
#define LED2 8
#define LED3 7
unsigned char len = 0;
unsigned char buf[8];
unsigned long ID = 0;
unsigned long line = 0;
MCP_CAN CAN0(17); // Set CS to pin 17
unsigned long time;
void setup() {
Serial.begin(115200);
while (!Serial) {
Serial.print("I will wait here forever...");
delay(1000);
};
pinMode(23, OUTPUT);
digitalWrite(23, HIGH);
pinMode(LED2, OUTPUT);
pinMode(LED3, OUTPUT);
pinMode(CANint, INPUT);
digitalWrite(LED2, LOW);
Serial.println("CAN init:");
if (CAN0.begin(CAN_500KBPS) == CAN_OK) {
Serial.println("Can Init Success");
} else {
Serial.println("Can Init Failed");
while (1) {
Serial.print("I will wait here forever...");
delay(1000);
}
}
Serial.println("Good to go!");
}
void loop() {
time = millis();
if(CAN_MSGAVAIL == CAN0.checkReceive() && line < 10000) { // Check to see whether data is read
CAN0.readMsgBufID(&ID, &len, buf); // Read data
//Add this line back in if you want to filter traffic if(ID == 1201) { //39
line = line + 1;
Serial.print(ID,HEX); // Output HEX Header
Serial.print("\t");
for(int i = 0; i<len; i++) { // Output 8 Bytes of data in Dec
Serial.print(buf[i]);
Serial.print("\t");
}
Serial.print(time); // Timestamp
Serial.print("\t");
Serial.println(line); // Line Number
// }
}
delay(10);
}
