How to send data using Local Interconnect Network(LIN)?

[mehdializadeh]

Hi,
I use mc9s08dz96.To send data in the form of the LIN protocol, I have set the CodeWarrior settings to asynchronous mode. According to the frame LIN protocol, I have defined and sent the data.

This is my data:

byte break_1={0x00};
byte break_2={0x00};
byte Sync_={0x55};
byte ID_={0x11};
byte data1={0x80};
byte data2={0x29};
byte chsum={0x56};

Then in main I sent these data:

AS1_Init();

Enable_Lin = 1;
while(1){
c=AS1_SendChar(break_1);
c=AS1_SendChar(break_2);
c=AS1_SendChar(Sync_);
c=AS1_SendChar(ID_);
c=AS1_SendChar(data1);
c=AS1_SendChar(data2);
c=AS1_SendChar(chsum);
delayy(5000);
}

Data sending function is:

byte AS1_SendChar(AS1_TComData Chr)
{
  if (!EnMode) {                       /* Is the device disabled in the actual speed CPU mode? */
    return ERR_SPEED;                  /* If yes then error */
  }
  if (SCI1S1_TDRE == 0U) {             /* Is the transmitter full? */
    return ERR_TXFULL;                 /* If yes then error */
  }
  SCI1D = (byte)Chr;                   /* Store char to the transmitter register */
  return ERR_OK;                       /* OK */
}

Now, 010 is added between each byte of data that I send with the above codes, which causes the receiving device to misread the data. What do you suggest to remove this 010?
The file is attached.
Best regards

[mehdializadeh]

Thank you so much for your kind reply.
I think that my problem is the synchronizing the S08’s Internal Clock for LIN or registers. But I set these.
This is my init function:

void AS1_Init(void)
{
  /* SCI1C1: LOOPS=1,SCISWAI=0,Rsrc=1,M=0,WAKE=1,ILT=1,PE=0,PT=0 */
  setReg8(SCI1C1, 0xACU);              /* Configure the SCI */ 
  /* SCI1C3: R8=0,T8=0,TXDIR=1,TXINV=0,ORIE=0,NEIE=0,FEIE=0,PEIE=0 */
  setReg8(SCI1C3, 0x20U);              /* Disable error interrupts */ 
  /* SCI1C2: TIE=0,TCIE=0,RIE=0,ILIE=0,TE=0,RE=0,RWU=0,SBK=0 */
  setReg8(SCI1C2, 0x00U);              /* Disable all interrupts */ 
  /* SCI1S2: LBKDIF=0,RXEDGIF=0,??=0,RXINV=0,RWUID=0,BRK13=1,LBKDE=0,RAF=0 */
  setReg8(SCI1S2, 0x04U);               
  AS1_SetHigh();                       /* Initial speed CPU mode is high */
}

and I have this function:

static void HWEnDi(void)
{
  if (EnMode) {                        /* Enable device? */
  SCI1BDH = 0x00U;                     /* Set high divisor register (enable device) */
  SCI1BDL = 0x1AU;                     /* Set low divisor register (enable device) */
    SCI1C2_TE = 0x01U;                  /* Enable transmitter */
    SCI1C2_RE = 0x01U;                  /* Enable receiver */
  } else {
    SCI1C2_RE = 0x00U;                  /* Disable receiver */
    SCI1C2_TE = 0x00U;                  /* Disable transmitter */
    SCI1BDH = 0x00U;                   /* Set high divisor register to zero (disable device) */
    SCI1BDL = 0x00U;                   /* Set low divisor register to zero (disable device) */
  }
}

Is it possible for you to view the file I have attached? I really appreciate it.

[vicentegomez]

PLease check the LIN stack

LIN2.x and SAE J2602 Stack 

Also check the application note 

https://www.nxp.com/docs/en/application-note/AN3756.pdf