William,

Is it repeatable?

ie; plug in, stop charge. wait 5 minutes until coolant pump turns off, then try start charge from the app.

Also, are other commands working (like lock/unlock)?

After setting the feature for write-enabled CAN bus, you need to restart the module. If not, none of the commands will work. If at least one of the commands is working, then that is fine.

Regards, Mark.

P.S. Not wishing to hijack this thread, but since you are in the USA - could you test the lock/unlock commands for us on your US car? Supposedly, the US cars don't have an immobiliser so that the UNLOCK command will disable the alarm and allow the car to be driven. Please try and let us know.

On 17 Feb 2012, at 2:35 PM, William Petefish wrote:

Mark,

Yes, I did and to no avail. I had purposefully let the car sit until it went into power save mode and tried again, no joy.

Might it have something to do with the new FW on the roadster? (4.6.4 I think is the FW that is on mine.) My roadster is a 2.5.

William

On Fri, Feb 17, 2012 at 12:29 AM, Mark Webb-Johnson <mark@webb-johnson.net> wrote:
William:

Current (1.2.0-rc3) code is:

void can_tx_setchargecurrent(unsigned char current)
  {
  while (TXB0CONbits.TXREQ) {} // Loop until TX is done
  TXB0CON = 0;
  TXB0SIDL = 0b01000000; // Setup 0x102
  TXB0SIDH = 0b00100000; // Setup 0x102
  TXB0D0 = 0x05;
  TXB0D1 = 0x02;
  TXB0D2 = 0x00;
  TXB0D3 = 0x00;
  TXB0D4 = current;
  TXB0D5 = 0x00;
  TXB0D6 = 0x00;
  TXB0D7 = 0x00;
  TXB0DLC = 0b00001000; // data length (8)
  TXB0CON = 0b00001000; // mark for transmission
  while (TXB0CONbits.TXREQ) {} // Loop until TX is done

  can_tx_wakeup(); // Also, wakeup the car if necessary
  }

void can_tx_wakeup(void)
  {
  while (TXB0CONbits.TXREQ) {} // Loop until TX is done
  TXB0CON = 0;
  TXB0SIDL = 0b01000000; // Setup 0x102
  TXB0SIDH = 0b00100000; // Setup 0x102
  TXB0D0 = 0x0a;
  TXB0DLC = 0b00000001; // data length (8)
  TXB0CON = 0b00001000; // mark for transmission
  while (TXB0CONbits.TXREQ) {} // Loop until TX is done
  }

That should work. Pre-rc3, I used to see this, but since rc3 it has been ok for me.

Maybe the bus was busy and lost the wakeup message? Did you try sending any other commands, or repeating the start charge command?

What is the version of your car (2.x or 1.5?).

Regards, Mark.

P.S. There is also a specific command C,18 that calls the CAN wakeup function. Not sure if the Android App supports it or not.

On 17 Feb 2012, at 2:22 PM, William Petefish wrote:

Mark,

Feature Needed: Wake Up command.

I tried to send the start charge command from my android phone and it wouldn't start to charge or change charging mode, etc. without being woken up by opening/closing the doors/trunk/remote/etc. 

I am using the latest release (1.20) and the Android app.

William


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