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- - User_Byte (http://www.chiefdelphi.com/forums/showthread.php?t=36335)

Are the User_Byte variables just for displaying info through the Dashboard? Are they all used to display breaker panel data? Can any value be put in them? I haven’t found any documentation on them.

Thanks

User_Byte1 can be displayed on the LCD on the OI by pressing the select button until you see a 'u' before the numbers. All 6 of them can be seen on the Dashboard.

The default code stores the last breaker tripped in User_Byte1 (only works if you plug the breaker panel into the RC). Any 8-bit value can be stored in any of the User_Bytes. I use two of them to send out one pot value. I store the top 8 bits in one User_Byte and the last two bits in another.

I'll see you guys at Drexel. If you need any more help do hesitate to ask MOE. I'm sure you can find us (we are the green people under the giant Tower of MOEdor :D )

What does this function do? It uses all the user_byte variables.

Thanks

Code:

/*******************************************************************************

* FUNCTION NAME: Handle_Panel_Data

* PURPOSE:       State machine for incomming Breaker Panel data.  

*

*

* NOTE:          Normally device specific code should reside in another file but

*                for the purpose of simplification we chose to put it here. 

*

* CALLED FROM:   CheckUartInts

* ARGUMENTS:     1

*     Argument       Type             IO   Description

*     --------       -------------    --   -----------

*     data           unsigned char    I    incoming data byte

* LIMITATIONS:   The data from the breaker panel does not contain a checksum.

*                                 See the breaker-panel-packet-definitions.pdf file for more info.

*******************************************************************************/



void Handle_Panel_Data(unsigned char data)  

{

  switch (IntState)

  {

    case 0:  // 1st 0xC9

      IntState = 0;

      if (data == 0xC9) IntState = 1;

      break;

    case 1 : // 2nd 0x17

      IntState = 0;

      if (data == 0x17) IntState = 2;

      break;

    case 2 : //get DATA1

      dataIn.data1Byte.allbits = data;

      txdata.user_byte3 = data;

      aBreakerWasTripped = (int) dataIn.data1Byte.bitselect.tripped;

      IntState = 3;

      break;

    case 3 : //get DATA2

      dataIn.data2 = data;

      txdata.user_byte4 = data;

      IntState = 4;

      break;

    case 4 : //get DATA3

      dataIn.data3 = data;

      txdata.user_byte5 = data;

      IntState = 5;

      break;

    case 5 : //get DATA4

      dataIn.data4 = data;

      txdata.user_byte6 = data;

      IntState = 0;

      break;

    default:

      IntState= 0;

      break;

  }

}

Note that in order to pass inspection this year, your user byte must show the master firmware revision #, which is its default value, so be prepared to switch it back to this if you use it for something custom. (They are having a lot of problems with teams with old firmware I guess.)