TCRC_32 Class Reference

Cyclic redundancy check (CRC-32) class. More...

#include <CRC_32.h>

Collaboration diagram for TCRC_32:

Public Member Functions
	TCRC_32 ()
	Class constructor method. More...
VOID	Initialise ()
	initialise internal CRC value to initial value More...
BOOL	Check (VOID *void_Data, U32 u32_Size, U32 u32_Expected_CRC)
	Check CRC of the data buffer. More...
U32	Calculate (VOID *void_Data, U32 u32_Size)
	Calculate CRC of the data buffer. More...
VOID	Update (U32 &u32_CRC, U8 u8_Data)
	Update CRC with new data value. More...
VOID	Update (U8 u8_Data)
	Update CRC with new data value. More...
VOID	Update (U32 &u32_CRC, U8 *u8_Data, U32 u32_Length)
	Update CRC with new data from data buffer. More...
VOID	Update (U32 &u32_CRC, U32 u32_Data)
	Update CRC with new data value. More...

Private Attributes
U32	u32_CRC_Intern
	CRC internal storage variable. More...

Detailed Description

Cyclic redundancy check (CRC-32) class.

Constructor & Destructor Documentation

TCRC_32()

TCRC_32::TCRC_32

(

)

Class constructor method.

---

Note

None

Override

Not allowed

Attention

Don't call this method directly.

UML diagram

References Initialise().

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Member Function Documentation

Calculate()

U32 TCRC_32::Calculate	(	VOID *	void_Data,
		U32	u32_Size
	)

Calculate CRC of the data buffer.

---

Note

None

Parameters

[in]	*void_Data	- Pointer to the data buffer
[in]	u32_Size	- Size of the data buffer

Returns

U32 - Calculated CRC of the data buffer

Override

Not allowed

Attention

None

UML diagram

References Update().

Referenced by Check(), and TParameter_Manager::Media_Database_Write_Parameter().

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Check()

BOOL TCRC_32::Check	(	VOID *	void_Data,
		U32	u32_Size,
		U32	u32_Expected_CRC
	)

Check CRC of the data buffer.

---

Note

None

Parameters

[in]	*void_Data	- Pointer to the data buffer
[in]	u32_Size	- Size of the data buffer
[in]	u32_Expected_CRC	- Expected CRC of the data buffer

Returns

BOOL - Data buffer CRC checking status

Return values

false	- CRC of the buffer not match to expected CRC
true	- CRC of the buffer match to expected CRC

Override

Not allowed

Attention

None

UML diagram

References Calculate().

Referenced by TParameter_Manager::Media_Database_Validate_Record(), and TParameter_Manager::Verify_Writtern_Record().

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Initialise()

VOID TCRC_32::Initialise

(

)

initialise internal CRC value to initial value

---

Note

None

Override

Not allowed

Attention

None

UML diagram

References u32_CRC_Intern.

Referenced by TCRC_32().

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Update() [1/4]

VOID TCRC_32::Update	(	U32 &	u32_CRC,
		U32	u32_Data
	)

Update CRC with new data value.

---

Note

None

Parameters

[in,out]	&u32_CRC	- Actual CRC value
[in]	u32_Data	- Data value

Returns

None

Override

Not allowed

Attention

None

UML diagram

References Extract_U8_From_U32(), and u32_CRC32_Table.

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Update() [2/4]

VOID TCRC_32::Update	(	U32 &	u32_CRC,
		U8 *	u8_Data,
		U32	u32_Length
	)

Update CRC with new data from data buffer.

---

Note

None

Parameters

[in,out]	&u32_CRC	- Actual CRC value
[in]	*u8_Data	- Pointer to the data buffer
[in]	u32_Length	- Data buffer length

Returns

None

Override

Not allowed

Attention

None

UML diagram

References u32_CRC32_Table.

Update() [3/4]

VOID TCRC_32::Update	(	U32 &	u32_CRC,
		U8	u8_Data
	)

Update CRC with new data value.

---

Note

None

Parameters

[in,out]	&u32_CRC	- Actual CRC value
[in]	u8_Data	- Data value

Returns

None

Override

Not allowed

Attention

None

UML diagram

References u32_CRC32_Table.

Referenced by TParameter_Base::Append_Hash_Data(), Calculate(), TEvent_Manager::Calculate_Database_Hash(), TParameter_Manager::Calculate_Database_Hash(), TCPU_STM32F410CBU6::Calculate_Image_Hash(), TCPU_STM32F429::Calculate_Image_Hash(), and Update().

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Update() [4/4]

VOID TCRC_32::Update

(

U8

u8_Data

)

Update CRC with new data value.

---

Note

None

Parameters

[in]

u8_Data

- Data value

Returns

None

Override

Not allowed

Attention

None

UML diagram

References u32_CRC_Intern, and Update().

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Member Data Documentation

u32_CRC_Intern

U32 TCRC_32::u32_CRC_Intern

private

CRC internal storage variable.

Referenced by Initialise(), and Update().

---

The documentation for this class was generated from the following files:

• ConOpSys/Common/CRC_32.h
• ConOpSys/Common/CRC_32.cpp