sending data over CAN from teensy

[slythy]

I am using the improved flex can library and I have it reading Messages fine using

   FRWJCAN =msg.buf[2]*256 +msg.buf[3];
      if (FRWJCAN> 32768)
        {
         FRP = (FRWJCAN- 65536)*1.00;
        }
      else
        {
         FRP = FRWJCAN*1.00;
        }

to read a specific can message and wrapping it if it goes negative.

What i want to do is send internal temp ( of the teensy3.6 on any CAN id)

any ideas of how i can do that? I am using SN65HVD230D transceivers.

Thank you!

[tonton81]

You mean like the sending struct?

CAN_message_t msg;
msg.id = 0x123;
msg.flags.extended = 0;
msg.len = 8;
msg.buf[0] = myTemperature;
Can0.write(msg);

As for keeping a value positive, you can use abs()

abs(-10.6);
abs(18);

Output:

10.6
18