Hardware-independent parameterinterface implementation via Controller Area Network (CAN) More...

#include <stdbool.h>
#include <stdint.h>

Macros
#define	VERSION_CAN_PARALIB 6
	Version der Paralib für CAN. More...

Functions
void	CAN_Para_Init (void)
	Initialization of CAN Parameterinterface. More...

void	CAN_Para_Cyclic (void)
	Cyclic procedure to process messages that needs more than one answer message. More...

uint8_t	CAN_Para_ReceiveIRQ (uint8_t data[8], uint32_t id, uint8_t DLC)
	Reads Message from CAN-Interface and handles Parameter Request. More...

void	CAN_Para_SendPing (void)
	Send ping to connected PCs. More...

void	CAN_SendTelegram (uint8_t data_length, uint8_t *data, uint16_t id_value)
	Send CAN Message to transmit Buffer. More...

Variables
const uint16_t	cui16_CANBaseAddress

const uint16_t	cui16_CANBroadcastAddress

Detailed Description

Hardware-independent parameterinterface implementation via Controller Area Network (CAN)

Author: R. Wegener

Date: 17.03.2022

Macro Definition Documentation

◆ VERSION_CAN_PARALIB

#define VERSION_CAN_PARALIB 6

Version der Paralib für CAN.

Function Documentation

◆ CAN_Para_Cyclic()

void CAN_Para_Cyclic ( void )

Cyclic procedure to process messages that needs more than one answer message.

This function must be called regularly, or from CAN transmit interrupt. If the global variable g_ui32CAN_RemainingDataToSend > 0 the remaining data is sent. If further characters in the string or other subIDs are to be transmitted, these are sent.

Author: R. Wegener

◆ CAN_Para_Init()

void CAN_Para_Init ( void )

Initialization of CAN Parameterinterface.

Must be called before using all other functions. Local variables are initialized here.

Author: R. Wegener

◆ CAN_Para_ReceiveIRQ()

uint8_t CAN_Para_ReceiveIRQ	(	uint8_t	data[8],
		uint32_t	id,
		uint8_t	DLC
	)

Reads Message from CAN-Interface and handles Parameter Request.

Is normally called from receive-interrupt. After processing the CAN-Message the answer is sent depending on the message type.

Return values

1	Data is processed
0	Data is not processed.

Parameters

data	Data of the received CAN-Telegram.
id	Identifier of the received CAN-Telegram.
DLC	Number of bytes received in this CAN-Telegram.

Author: R. Wegener

◆ CAN_Para_SendPing()

void CAN_Para_SendPing ( void )

Send ping to connected PCs.

Send one Ping from Device for Autoconnect to PC, to announce presence of Device. The Device starts connecting afterwards. Should mot be send faster than in a 500ms cycle.

Author: R. Wegener

◆ CAN_SendTelegram()

void CAN_SendTelegram	(	uint8_t	data_length,
		uint8_t *	data,
		uint16_t	id_value
	)

Send CAN Message to transmit Buffer.

Parameters

data_length	Length of CAN-Telegram
data	Data-Bytes
id_value	CAN-Identifier

Author: R. Wegener

< Standard Id

< Data frame

< Peripheral base address in the alias region

Variable Documentation

◆ cui16_CANBaseAddress

const uint16_t cui16_CANBaseAddress

extern

◆ cui16_CANBroadcastAddress

const uint16_t cui16_CANBroadcastAddress