Hi,
I am trying to configure and use the LIN port in slave mode. But I don't receive any interrupt, even thought there is traffic on the bus as I check with oscilloscope.
I am using LIN1. In HALCogen I can not enable the break interrupt and TX interrupt in LIN Global tab. Also when I uncheck the Master Mode check box and generate the code, relevant bit is not changed in GCR1 So I changed the HL_lin.c instead. Here is my HL_lin.c with modifications:
void linInit(void)
{
/* USER CODE BEGIN (2) */
/* USER CODE END */
/** @b initialize @b LIN */
/** - 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 |= 0x03000C40U
| (uint32)((uint32)1U << 12U)
| (uint32)((uint32)0U << 2U);
/** - Setup maximum baud rate prescaler */
linREG1->MBRSR = (uint32)5155U;
/** - Setup baud rate prescaler */
linREG1->BRS = (uint32)357U;
/** - Setup RX and TX reception masks */
linREG1->MASK = ((uint32)((uint32)0xU << 16U) | (uint32)0x10U);
/** - 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)0U | (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)0x80000000U
| (uint32)0x40000000U
| (uint32)0x20000000U
| (uint32)0x10000000U
| (uint32)0x08000000U
| (uint32)0x04000000U
| (uint32)0x02000000U
| (uint32)0x01000000U
| (uint32)0x00002000U
| (uint32)0x00000200U
| (uint32)0x00000100U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000002U
| (uint32)0x00000001U);
/** - Finaly start LIN */
linREG1->GCR1 |= 0x00000080U;
/** @b initialize @b LIN */
/** - Release from reset */
linREG2->GCR0 = 1U;
/** - Start LIN configuration
* - Keep state machine in software reset
*/
linREG2->GCR1 = 0U;
/** - Enable LIN Mode */
linREG2->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
*/
linREG2->GCR1 |= 0x03000C60U
| (uint32)((uint32)1U << 12U)
| (uint32)((uint32)0U << 2U);
/** - Setup maximum baud rate prescaler */
linREG2->MBRSR = (uint32)5155U;
/** - Setup baud rate prescaler */
linREG2->BRS = (uint32)357U;
/** - Setup RX and TX reception masks */
linREG2->MASK = ((uint32)((uint32)0xFFU << 16U) | (uint32)0xFFU);
/** - Setup compare
* - Sync delimiter
* - Sync break extension
*/
linREG2->COMP = ((uint32)((uint32)(1U - 1U) << 8U) | ((uint32)13U - 13U));
/** - Setup response length */
linREG2->FORMAT = ((linREG2->FORMAT & 0xFFF8FFFFU) | (uint32)(((uint32)8U - 1U) << 16U));
/** - Set LIN pins functional mode
* - TX
* - RX
* - CLK
*/
linREG2->PIO0 = ((uint32)4U | (uint32)2U | (uint32)0U);
/** - Set LIN pins default output value
* - TX
* - RX
* - CLK
*/
linREG2->PIO3 = ((uint32)0U | (uint32)0U | (uint32)0U);
/** - Set LIN pins output direction
* - TX
* - RX
* - CLK
*/
linREG2->PIO1 = ((uint32)0U | (uint32)0U | (uint32)0U);
/** - Set LIN pins open drain enable
* - TX
* - RX
* - CLK
*/
linREG2->PIO6 = ((uint32)0U | (uint32)0U | (uint32)0U);
/** - Set LIN pins pullup/pulldown enable
* - TX
* - RX
* - CLK
*/
linREG2->PIO7 = ((uint32)0U | (uint32)0U | (uint32)0U);
/** - Set LIN pins pullup/pulldown select
* - TX
* - RX
* - CLK
*/
linREG2->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
*/
linREG2->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
*/
linREG2->SETINT = ((uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000200U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000000U
| (uint32)0x00000000U);
/** - Finaly start LIN */
linREG2->GCR1 |= 0x00000080U;
/* USER CODE BEGIN (3) */
/* USER CODE END */
}
Thanks,
Sa
