Hi all,

Thank's a lot for your work. I'm currently on a Teensy 4.1 and I'm trying to use and . I used the code of mjs513 and it's worked for me too.

I want to communicate with my teensy by Ethernet with IP protocol, using . When I use the librairy separatly, it's work, but when I use it together, nothing work.

Any ideas ?

My code below :

// ------------------------------------------------------------- // CANtest for Teensy 4.0 using CAN2 and CAN2 bus

include

include // librairie ethernet pour teensy

/*IP*****/

define IP1 10

define IP2 0

define IP3 20

define IP4 130

/****/

define debug(msg) Serial.print("["); Serial.print(FILE); Serial.print("::"); Serial.print(LINE); Serial.print("::"); Serial.print(msg); Serial.println("]");

void debug_pause(void) { Serial.print("Paused..."); while (!Serial.available()); while (Serial.available()) Serial.read(); Serial.println("Restarted."); }

FlexCAN_T4<CAN1, RX_SIZE_256, TX_SIZE_16> Can1; FlexCAN_T4<CAN3, RX_SIZE_256, TX_SIZE_16> Can2;

static CAN_message_t msg; static uint8_t hex[17] = "0123456789abcdef";

// ------------------------------------------------------------- static void hexDump(uint8_t dumpLen, uint8_t bytePtr) { uint8_t working; while( dumpLen-- ) { working = bytePtr++; Serial.write( hex[ working>>4 ] ); Serial.write( hex[ working&15 ] ); } Serial.write('\r'); Serial.write('\n'); }

// ------------------------------------------------------------- void setup(void) { Serial.begin(115200); int iSerialTimeout = 1000000; delay(100); while (!Serial && (iSerialTimeout-- != 0));
debug (F("start setup"));

Can1.begin();
Can2.begin(); Can1.setBaudRate(1000000); //[COLOR="#FF0000"]// I like to set the baud rates just to be on the safe side[/COLOR] Can2.setBaudRate(1000000);

// t4 missing msg.ext = 0; msg.id = 0x100; msg.len = 8; msg.flags.extended = 0; msg.flags.remote = 0; msg.flags.overrun = 0; msg.flags.reserved = 0; msg.buf[0] = 10; msg.buf[1] = 20; msg.buf[2] = 0; msg.buf[3] = 100; msg.buf[4] = 128; msg.buf[5] = 64; msg.buf[6] = 32; msg.buf[7] = 16; debug (F("setup complete")); //debug_pause();

/** TCP **/ byte mac[] = { 0xDE, 0xAC, 0xDE, 0xEF, 0xAE, 0xEC };

IPAddress ip(IP1, IP2, IP3, IP4); // adresse ip de la teensy IPAddress subnet(255, 255, 255, 0); // netmask de la teensy IPAddress gateway(IP1, IP2, IP3, 1); // gateway de la teensy IPAddress myDns(IP1, IP2, IP3, IP4); // adresse dns de la teensy //Ethernet.macAddress(mac); Ethernet.MACAddress(mac); //Ethernet.begin(ip,netmask,gateway,myDns); // initialisation des donnee ethernet avec la librairie QNEthernet begin(ip,mask,gateway,dns) Ethernet.begin(mac, ip, myDns, gateway, subnet); // avec NativeEthernet }

// ------------------------------------------------------------- void loop(void) { msg.buf[0]++; //[COLOR="#FF0000"] //since you are in a loop i just incremented each time in stead of doing it 5 times[/COLOR] Can1.write(msg); //[COLOR="#FF0000"] //you could do it your way as well[/COLOR] Serial.println("T4.0cantest - Repeat: Read bus2, Write bus1"); CAN_message_t inMsg; if (Can2.read(inMsg)!=0) //[COLOR="#FF0000"]// Changed this to if as as opposed to while - the way you had it just gets stuck since you haven't even sent a message yet[/COLOR] { Serial.print("W RD bus 2: "); hexDump(8, inMsg.buf); } delay(20); }

tonton81 / FlexCAN_T4

Compatibility <FlexCAN_T4.h> and <NativeEthernet.h> #72