LIN software stack for 32-bit AVR that supports initializing the LIN bus and to transmit/receive messages.

Data Structures
struct	st_lin_message
	This structure allows to handle a LIN message and, at the end of the received/transmitted message, allows to call a function associated to this message, the update or the capture of "signals". More...

Macros
#define	LIN_LAST_ERR_LENGHT 0x04
	Default length of the 'lin_last_error[]' array. More...

#define	LIN_OVERLOAD_INT ((U16)0x00FF)
	Error report definitions. More...

#define	NUMBER_OF_LIN_FRAMES_NODE0 8

#define	NUMBER_OF_LIN_FRAMES_NODE1 8

Enumerations
enum	enum_lin_cmd { PUBLISH, SUBSCRIBE, IGNORE }
	This enumeration is used to select an action for a specific message declared in st_lin_message structure. Note: XXX_STAND_BY keeps the direction (PUBLISH or SUBSCRIBE) for a message that will be IGNORE. When the 'stand_by' will be finished, PUBLISH_STAND_BY would become PUBLISH and SUBSCRIBE_STAND_BY would become SUBSCRIBE. An IGNORE message could become either PUBLISH or SUBSCRIBE. More...

Functions
U8	lin_init (bool master, U8 l_node, U16 b_rate, long pba_hz)
	This function initializes the LIN controller and, if needed, the LIN interrupts. More...

U8	lin_send_cmd (U8 l_node, U8 l_id, U8 l_len)
	This function commands the sending of the LIN header, MASTER task of MASTER node. More...

Variables
volatile st_lin_message	lin_descript_list_node0 [NUMBER_OF_LIN_FRAMES_NODE0]
	Array of structure of type:'st_lin_message'. Default: 8 elements. More...

volatile st_lin_message	lin_descript_list_node1 [NUMBER_OF_LIN_FRAMES_NODE1]

volatile U16	lin_error_number_node0
	Counter of LIN error. If an error clearly linked to a message (i.e. time-out) the status of this message is written with the error (LINERR). More...

volatile U16	lin_error_number_node1

volatile U8	lin_handle_node0
	Index in lin_descript_list[], 'lin_handle' is set after processing IDOK and verified once RXOK or TXOK rises. More...

volatile U8	lin_handle_node1

volatile U16	lin_last_errors_node0 []
	Last error FIFO: lin_handle \| status. Default: 4 elements. More...

volatile U16	lin_last_errors_node1 []

LIN Versions
#define	LIN_2x 0
	Lin 2.x Version. More...

#define	LIN_1x 1
	Lin 1.x Version. More...

#define LIN_1x 1

Lin 1.x Version.

#define LIN_2x 0

Lin 2.x Version.

#define LIN_LAST_ERR_LENGHT 0x04

Default length of the 'lin_last_error[]' array.

Referenced by lin_int_handler_node0(), and lin_int_handler_node1().

#define LIN_OVERLOAD_INT ((U16)0x00FF)

Error report definitions.

More than ONE interrupt in the same time !

#define NUMBER_OF_LIN_FRAMES_NODE0 8

Referenced by lin_int_handler_node0(), lin_pdca_int_rx_handler_node0(), lin_pdca_int_tx_handler_node0(), and lin_send_cmd().

#define NUMBER_OF_LIN_FRAMES_NODE1 8

Referenced by lin_int_handler_node1(), lin_pdca_int_rx_handler_node1(), lin_pdca_int_tx_handler_node1(), and lin_send_cmd().

enum enum_lin_cmd

This enumeration is used to select an action for a specific message declared in st_lin_message structure. Note: XXX_STAND_BY keeps the direction (PUBLISH or SUBSCRIBE) for a message that will be IGNORE. When the 'stand_by' will be finished, PUBLISH_STAND_BY would become PUBLISH and SUBSCRIBE_STAND_BY would become SUBSCRIBE. An IGNORE message could become either PUBLISH or SUBSCRIBE.

Enumerator
PUBLISH	The node sends the response.
SUBSCRIBE	The node receives the response.
IGNORE	The node is not concerned by the response, it doesn't send or receive.

U8 lin_init	(	bool	master,
		U8	l_node,
		U16	b_rate,
		long	pba_hz
	)

This function initializes the LIN controller and, if needed, the LIN interrupts.

Parameters

master	`true` for master, `false` for slave
b_rate	Baudrate Value
l_node	Node Value
pba_hz	PBA Value

Returns: Status PASS / FAIL

Parameters

master	`true` for master, `false` for slave
l_node	Node Value
b_rate	Baudrate Value
pba_hz	PBA Value

Returns: Status PASS / FAIL

Enable Interrupt for Error flags and end ID Reception

Register Interrupt for LIN

Register Interrupt for PDCA Transfer TX

Register Interrupt for PDCA Transfer RX

Enable Interrupt for Error flags and end ID Reception

Register Interrupt for LIN

Register Interrupt for PDCA Transfer TX

Register Interrupt for PDCA Transfer RX

References Disable_global_interrupt, gpio_enable_module(), gpio_enable_pin_pull_up(), INTC_register_interrupt(), lin_int_handler_node0(), lin_int_handler_node1(), lin_pdca_int_rx_handler_node0(), lin_pdca_int_rx_handler_node1(), lin_pdca_int_tx_handler_node0(), lin_pdca_int_tx_handler_node1(), PASS, usart_lin_node0, USART_LIN_NODE0_PDCA_RX_IRQ, USART_LIN_NODE0_PDCA_RX_IRQ_LEVEL, USART_LIN_NODE0_PDCA_TX_IRQ, USART_LIN_NODE0_PDCA_TX_IRQ_LEVEL, USART_LIN_NODE0_RX_PIN, USART_LIN_NODE0_USART_IRQ, USART_LIN_NODE0_USART_IRQ_LEVEL, usart_lin_node1, USART_LIN_NODE1_PDCA_RX_IRQ, USART_LIN_NODE1_PDCA_RX_IRQ_LEVEL, USART_LIN_NODE1_PDCA_TX_IRQ, USART_LIN_NODE1_PDCA_TX_IRQ_LEVEL, USART_LIN_NODE1_RX_PIN, USART_LIN_NODE1_USART_IRQ, and USART_LIN_NODE1_USART_IRQ_LEVEL.

Referenced by main().

U8 lin_send_cmd	(	U8	l_node,
		U8	l_id,
		U8	l_len
	)

This function commands the sending of the LIN header, MASTER task of MASTER node.

Parameters

l_id	LIN identifier value. In case of `LIN_1X', the coded length is transported into the LIN identifier.
l_len	True length (not coded), number of data bytes transported in the response. This information is not used in `LIN_1X' because it is coded in `l_id'.
l_node	Node Value

Returns: Status PASS / FAIL

Parameters

l_node	Node Value
l_id	LIN identifier value. In case of `LIN_1X', the coded length is transported into the LIN identifier.
l_len	True length (not coded), number of data bytes transported in the response. This information is not used in `LIN_1X' because it is coded in `l_id'.