steering-wheel/lib/due_can/examples/CAN_TrafficSnooper/CAN_TrafficSnooper.ino

66 lines
1.5 KiB
C++

// Arduino Due - Displays all traffic found on either canbus port
// By Thibaut Viard/Wilfredo Molina/Collin Kidder 2013-2014
// Required libraries
#include "variant.h"
#include <due_can.h>
//Leave defined if you use native port, comment if using programming port
//This sketch could provide a lot of traffic so it might be best to use the
//native port
#define Serial SerialUSB
void setup()
{
Serial.begin(115200);
// Initialize CAN0 and CAN1, Set the proper baud rates here
Can0.begin(CAN_BPS_250K);
Can1.begin(CAN_BPS_250K);
//By default there are 7 mailboxes for each device that are RX boxes
//This sets each mailbox to have an open filter that will accept extended
//or standard frames
int filter;
//extended
for (filter = 0; filter < 3; filter++) {
Can0.setRXFilter(filter, 0, 0, true);
Can1.setRXFilter(filter, 0, 0, true);
}
//standard
for (int filter = 3; filter < 7; filter++) {
Can0.setRXFilter(filter, 0, 0, false);
Can1.setRXFilter(filter, 0, 0, false);
}
}
void printFrame(CAN_FRAME &frame) {
Serial.print("ID: 0x");
Serial.print(frame.id, HEX);
Serial.print(" Len: ");
Serial.print(frame.length);
Serial.print(" Data: 0x");
for (int count = 0; count < frame.length; count++) {
Serial.print(frame.data.bytes[count], HEX);
Serial.print(" ");
}
Serial.print("\r\n");
}
void loop(){
CAN_FRAME incoming;
if (Can0.available() > 0) {
Can0.read(incoming);
printFrame(incoming);
}
if (Can1.available() > 0) {
Can1.read(incoming);
printFrame(incoming);
}
}