TMS570LC4357: TMS570LC4357 LIN Parity Bit Generation Wrong

Dear Team,

I am using TMS570LC4357 MCU in my project.LIN Controller is not generating parity bits.

I configured LIN1 to be a master and it is connected to a Vector LIN Hardware (slave)

a) If i generate Header using ID 0x17 ,Vector device throws ID/Parity Error

As per the calculation ,  the parity bit P0 =0 , P1 =1 , But Hardware is generating Both the Bits as 0 , P0,P1 =0;(Observed in oscilloscope)

b) If i use other ID , Ex: 37 , the Vector  Device gets the header correctly and responds with the data

As per the calculation ,  the parity bit P0 =0 , P1 =0 , Hardware is generating Both the Bits as 0 , P0,P1 =0;

observation :

LIN Controller is not doing parity calculation properly.

LIN MCU Configuration for your reference

 /** - Release from reset */
    linREG1->GCR0 = 1U;

    /** - Start LIN configuration
    *     - Keep state machine in software reset
    */
    linREG1->GCR1 = 0U;

    /**   - Enable LIN Mode */
    linREG1->GCR1 = 0x40U;
    
    /** - Setup control register 1
    *     - Enable transmitter
    *     - Enable receiver
    *     - Stop when debug mode is entered
    *     - Disable Loopback mode
    *     - Disable / Enable HGENCTRL (Mask filtering with ID-Byte)
    *     - Use enhance checksum
    *     - Enable multi buffer mode
    *     - Disable automatic baudrate adjustment
    *     - Disable sleep mode
    *     - Set LIN module as master
    *     - Enable/Disable parity
    *     - Disable data length control in ID4 and ID5
    */
    linREG1->GCR1 |= 0x03000C60U
                 | (uint32)((uint32)1U << 12U)
                /* | (uint32)((uint32)0U << 17U) // Added newly*/
                 | (uint32)((uint32)1U << 2U);
                    
    /** - Setup maximum baud rate prescaler */
    linREG1->MBRSR = (uint32)4507U;

    /** - Setup baud rate prescaler */
    linREG1->BRS = (uint32)324U;

    /** - Setup RX and TX reception masks */
    linREG1->MASK = ((uint32)((uint32)0xFFU << 16U) | (uint32)0xFFU);

    /** - Setup compare
    *     - Sync delimiter
    *     - Sync break extension
    */
    linREG1->COMP = ((uint32)((uint32)(1U - 1U) << 8U) | ((uint32)13U - 13U));

    /** - Setup response length */
    linREG1->FORMAT = ((linREG1->FORMAT & 0xFFF8FFFFU) | (uint32)(((uint32)8U - 1U) << 16U));

    /** - Set LIN pins functional mode
    *     - TX
    *     - RX
    *     - CLK
    */
    linREG1->PIO0 = ((uint32)4U | (uint32)2U | (uint32)0U);

    /** - Set LIN pins default output value
    *     - TX
    *     - RX
    *     - CLK
    */
    linREG1->PIO3 = ((uint32)0U | (uint32)0U | (uint32)0U);

    /** - Set LIN pins output direction
    *     - TX
    *     - RX
    *     - CLK
    */
    linREG1->PIO1 = ((uint32)4U | (uint32)0U | (uint32)0U);

    /** - Set LIN pins open drain enable
    *     - TX
    *     - RX
    *     - CLK
    */
    linREG1->PIO6 = ((uint32)0U | (uint32)0U | (uint32)0U);

    /** - Set LIN pins pullup/pulldown enable
    *     - TX
    *     - RX
    *     - CLK
    */
    linREG1->PIO7 = ((uint32)0U | (uint32)0U | (uint32)0U);


    /** - Set LIN pins pullup/pulldown select
    *     - TX
    *     - RX
    *     - CLK
    */
    linREG1->PIO8 = ((uint32)4U | (uint32)2U | (uint32)1U);

    /** - Set interrupt level
    *     - Bit error level
    *     - Physical bus error level
    *     - Checksum error level
    *     - Inconsistent sync field error level
    *     - No response error level
    *     - Framing error level
    *     - Overrun error level
    *     - Parity error level
    *     - Identifier level
    *     - RX level
    *     - TX level
    *     - Timeout after 3 wakeup signals level
    *     - Timeout after wakeup signal level
    *     - Timeout level
    *     - Wakeup level
    *     - Break detect level
    */
    linREG1->SETINTLVL = ((uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U
                       | (uint32)0x00000000U);

    /** - Set interrupt enable
    *     - Enable/Disable bit error
    *     - Enable/Disable physical bus error level
    *     - Enable/Disable checksum error level
    *     - Enable/Disable inconsistent sync field error level
    *     - Enable/Disable no response error level
    *     - Enable/Disable framing error level
    *     - Enable/Disable overrun error level
    *     - Enable/Disable parity error level
    *     - Enable/Disable identifier level
    *     - Enable/Disable RX level
    *     - Enable/Disable TX level
    *     - Enable/Disable timeout after 3 wakeup signals level
    *     - Enable/Disable timeout after wakeup signal level
    *     - Enable/Disable timeout level
    *     - Enable/Disable wakeup level
    *     - Enable/Disable break detect level
    */
    linREG1->SETINT = ((uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U
                    | (uint32)0x00000000U);

    /** - Finaly start LIN */
    linREG1->GCR1 |= 0x00000080U;