Headers for the helper functions for the CAN module. More...

#include "general.h"
#include "can_cfg.h"

Include dependency graph for can_helper.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	CAN_SIGNAL_TYPE

Macros

#define	CAN_BYTE_0_POSITION (0u)

#define	CAN_BYTE_1_POSITION (1u)

#define	CAN_BYTE_2_POSITION (2u)

#define	CAN_BYTE_3_POSITION (3u)

#define	CAN_BYTE_4_POSITION (4u)

#define	CAN_BYTE_5_POSITION (5u)

#define	CAN_BYTE_6_POSITION (6u)

#define	CAN_BYTE_7_POSITION (7u)

Typedefs
typedef struct CAN_SIGNAL_TYPE	CAN_SIGNAL_TYPE_s

Functions
void	CAN_TxPrepareSignalData (float *pSignal, CAN_SIGNAL_TYPE_s signalProperties)
	Prepare signal data. This function takes the signal data and applies factor, applies offset and compares with signal minimum and maximum values. More...

void	CAN_RxConvertRawSignalData (float *pSignalConverted, float signalRaw, CAN_SIGNAL_TYPE_s signalProperties)
	Convert raw signal data. This function takes the raw signal data and applies offset and factor to convert the raw value. More...

void	CAN_TxSetMessageDataWithSignalData (uint64_t *pMessage, uint64_t bitStart, uint8_t bitLength, uint64_t canSignal, CAN_ENDIANNESS_e endianness)
	Puts CAN signal data in a 64-bit variable. This function is used to compose a 64-bit CAN message. It takes signal data, signal bit start, signal bit length and puts the data in the 64-bit variable. More...

void	CAN_TxSetCanDataWithMessageData (uint64_t message, uint8_t *pCanData, CAN_ENDIANNESS_e endianness)
	Copy CAN data from a 64-bit variable to 8 bytes. This function is used to copy a 64-bit CAN message to 8 bytes. More...

void	CAN_RxGetSignalDataFromMessageData (uint64_t message, uint64_t bitStart, uint8_t bitLength, uint64_t *pCanSignal, CAN_ENDIANNESS_e endianness)
	Gets CAN signal data from a 64-bit variable. This function is used to get signal data from a 64-bit CAN message. It takes signal bit start, signal bit length and extract signal data from the the 64-bit variable. More...

void	CAN_RxGetMessageDataFromCanData (uint64_t pMessage, const uint8_t const kpkCanData, CAN_ENDIANNESS_e endianness)
	Copy CAN data from 8 bytes to a 64-bit variable. More...

Detailed Description

Headers for the helper functions for the CAN module.

Copyright: © 2010 - 2021, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. All rights reserved.

SPDX-License-Identifier: BSD-3-Clause

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Author: foxBMS Team

Date: 2021-04-22 (date of creation)

Updated: 2021-06-24 (date of last update)

Prefix: CAN

Definition in file can_helper.h.

Macro Definition Documentation

◆ CAN_BYTE_0_POSITION

#define CAN_BYTE_0_POSITION (0u)

position for CAN byte 0 to 7

Definition at line 68 of file can_helper.h.

◆ CAN_BYTE_1_POSITION

#define CAN_BYTE_1_POSITION (1u)

position for CAN byte 0 to 7

Definition at line 69 of file can_helper.h.

◆ CAN_BYTE_2_POSITION

#define CAN_BYTE_2_POSITION (2u)

position for CAN byte 0 to 7

Definition at line 70 of file can_helper.h.

◆ CAN_BYTE_3_POSITION

#define CAN_BYTE_3_POSITION (3u)

position for CAN byte 0 to 7

Definition at line 71 of file can_helper.h.

◆ CAN_BYTE_4_POSITION

#define CAN_BYTE_4_POSITION (4u)

position for CAN byte 0 to 7

Definition at line 72 of file can_helper.h.

◆ CAN_BYTE_5_POSITION

#define CAN_BYTE_5_POSITION (5u)

position for CAN byte 0 to 7

Definition at line 73 of file can_helper.h.

◆ CAN_BYTE_6_POSITION

#define CAN_BYTE_6_POSITION (6u)

position for CAN byte 0 to 7

Definition at line 74 of file can_helper.h.

◆ CAN_BYTE_7_POSITION

#define CAN_BYTE_7_POSITION (7u)

position for CAN byte 0 to 7

Definition at line 75 of file can_helper.h.

Typedef Documentation

◆ CAN_SIGNAL_TYPE_s

typedef struct CAN_SIGNAL_TYPE CAN_SIGNAL_TYPE_s

type definition for fields of a CAN signal

Function Documentation

◆ CAN_RxConvertRawSignalData()

void CAN_RxConvertRawSignalData	(	float *	pSignalConverted,
		float	signalRaw,
		CAN_SIGNAL_TYPE_s	signalProperties
	)

Convert raw signal data. This function takes the raw signal data and applies offset and factor to convert the raw value.

Parameters

[out]	pSignalConverted	coverted signal data
[in]	signalRaw	raw signal data
[in]	signalProperties	signal properties (factor, offset, min, max)

Definition at line 160 of file can_helper.c.

◆ CAN_RxGetMessageDataFromCanData()

void CAN_RxGetMessageDataFromCanData	(	uint64_t *	pMessage,
		const uint8_t *const	kpkCanData,
		CAN_ENDIANNESS_e	endianness
	)

Copy CAN data from 8 bytes to a 64-bit variable.

This function is used to copy data from a 64-bit variable to 8 bytes.

Parameters

[in]	pMessage	64-bit where the data is copied
[out]	kpkCanData	8 bytes containing the data
[in]	endianness	big or little endianness of data

Definition at line 288 of file can_helper.c.

◆ CAN_RxGetSignalDataFromMessageData()

void CAN_RxGetSignalDataFromMessageData	(	uint64_t	message,
		uint64_t	bitStart,
		uint8_t	bitLength,
		uint64_t *	pCanSignal,
		CAN_ENDIANNESS_e	endianness
	)

Gets CAN signal data from a 64-bit variable. This function is used to get signal data from a 64-bit CAN message. It takes signal bit start, signal bit length and extract signal data from the the 64-bit variable.

Parameters

[in]	message	64-bit variable containing the CAN data
[in]	bitStart	starting bit were the signal data must be put
[in]	bitLength	length of the signal data to be put in CAN message
[out]	pCanSignal	signal data to be retrieved from message
[in]	endianness	big or little endianness of data

Definition at line 248 of file can_helper.c.

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◆ CAN_TxPrepareSignalData()

void CAN_TxPrepareSignalData	(	float *	pSignal,
		CAN_SIGNAL_TYPE_s	signalProperties
	)

Prepare signal data. This function takes the signal data and applies factor, applies offset and compares with signal minimum and maximum values.

Parameters

[in,out]	pSignal	signal data
[in]	signalProperties	signal properties (factor, offset, min, max)

Definition at line 141 of file can_helper.c.

◆ CAN_TxSetCanDataWithMessageData()

void CAN_TxSetCanDataWithMessageData	(	uint64_t	message,
		uint8_t *	pCanData,
		CAN_ENDIANNESS_e	endianness
	)

Copy CAN data from a 64-bit variable to 8 bytes. This function is used to copy a 64-bit CAN message to 8 bytes.

Parameters

[in]	message	64-bit variable containing the CAN data
[out]	pCanData	8 bytes where the data is copied
[in]	endianness	big or little endianness of data

Definition at line 205 of file can_helper.c.

◆ CAN_TxSetMessageDataWithSignalData()

void CAN_TxSetMessageDataWithSignalData	(	uint64_t *	pMessage,
		uint64_t	bitStart,
		uint8_t	bitLength,
		uint64_t	canSignal,
		CAN_ENDIANNESS_e	endianness
	)

Puts CAN signal data in a 64-bit variable. This function is used to compose a 64-bit CAN message. It takes signal data, signal bit start, signal bit length and puts the data in the 64-bit variable.

Parameters

[out]	pMessage	64-bit variable containing the CAN data
[in]	bitStart	starting bit were the signal data must be put
[in]	bitLength	length of the signal data to be put in CAN message
[in]	canSignal	signal data to be put in message
[in]	endianness	big or little endianness of data

Definition at line 166 of file can_helper.c.

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Data Structures

Macros

Typedefs

Functions

Detailed Description

Macro Definition Documentation

◆ CAN_BYTE_0_POSITION

◆ CAN_BYTE_1_POSITION

◆ CAN_BYTE_2_POSITION

◆ CAN_BYTE_3_POSITION

◆ CAN_BYTE_4_POSITION

◆ CAN_BYTE_5_POSITION

◆ CAN_BYTE_6_POSITION

◆ CAN_BYTE_7_POSITION

Typedef Documentation

◆ CAN_SIGNAL_TYPE_s

Function Documentation

◆ CAN_RxConvertRawSignalData()

◆ CAN_RxGetMessageDataFromCanData()

◆ CAN_RxGetSignalDataFromMessageData()

◆ CAN_TxPrepareSignalData()

◆ CAN_TxSetCanDataWithMessageData()

◆ CAN_TxSetMessageDataWithSignalData()