foxBMS - Unit Tests  1.2.1
The foxBMS Unit Tests API Documentation
can_helper.h File Reference

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

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

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

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]pSignalConvertedcoverted signal data
[in]signalRawraw signal data
[in]signalPropertiessignal 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]pMessage64-bit where the data is copied
[out]kpkCanData8 bytes containing the data
[in]endiannessbig 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]message64-bit variable containing the CAN data
[in]bitStartstarting bit were the signal data must be put
[in]bitLengthlength of the signal data to be put in CAN message
[out]pCanSignalsignal data to be retrieved from message
[in]endiannessbig 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]pSignalsignal data
[in]signalPropertiessignal 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]message64-bit variable containing the CAN data
[out]pCanData8 bytes where the data is copied
[in]endiannessbig 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]pMessage64-bit variable containing the CAN data
[in]bitStartstarting bit were the signal data must be put
[in]bitLengthlength of the signal data to be put in CAN message
[in]canSignalsignal data to be put in message
[in]endiannessbig or little endianness of data

Definition at line 166 of file can_helper.c.

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