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CRC Configuration functions
[CRC Exported Functions]
Functions | |
| __STATIC_INLINE void | LL_CRC_ResetCRCCalculationUnit (CRC_TypeDef *CRCx) |
| Reset the CRC calculation unit. | |
| __STATIC_INLINE void | LL_CRC_SetPolynomialSize (CRC_TypeDef *CRCx, uint32_t PolySize) |
| Configure size of the polynomial. | |
| __STATIC_INLINE uint32_t | LL_CRC_GetPolynomialSize (CRC_TypeDef *CRCx) |
| Return size of the polynomial. | |
| __STATIC_INLINE void | LL_CRC_SetInputDataReverseMode (CRC_TypeDef *CRCx, uint32_t ReverseMode) |
| Configure the reversal of the bit order of the input data CR REV_IN LL_CRC_SetInputDataReverseMode. | |
| __STATIC_INLINE uint32_t | LL_CRC_GetInputDataReverseMode (CRC_TypeDef *CRCx) |
| Return type of reversal for input data bit order CR REV_IN LL_CRC_GetInputDataReverseMode. | |
| __STATIC_INLINE void | LL_CRC_SetOutputDataReverseMode (CRC_TypeDef *CRCx, uint32_t ReverseMode) |
| Configure the reversal of the bit order of the Output data CR REV_OUT LL_CRC_SetOutputDataReverseMode. | |
| __STATIC_INLINE uint32_t | LL_CRC_GetOutputDataReverseMode (CRC_TypeDef *CRCx) |
| Configure the reversal of the bit order of the Output data CR REV_OUT LL_CRC_GetOutputDataReverseMode. | |
| __STATIC_INLINE void | LL_CRC_SetInitialData (CRC_TypeDef *CRCx, uint32_t InitCrc) |
| Initialize the Programmable initial CRC value. | |
| __STATIC_INLINE uint32_t | LL_CRC_GetInitialData (CRC_TypeDef *CRCx) |
| Return current Initial CRC value. | |
| __STATIC_INLINE void | LL_CRC_SetPolynomialCoef (CRC_TypeDef *CRCx, uint32_t PolynomCoef) |
| Initialize the Programmable polynomial value (coefficients of the polynomial to be used for CRC calculation). | |
| __STATIC_INLINE uint32_t | LL_CRC_GetPolynomialCoef (CRC_TypeDef *CRCx) |
| Return current Programmable polynomial value. | |
Function Documentation
| __STATIC_INLINE uint32_t LL_CRC_GetInitialData | ( | CRC_TypeDef * | CRCx ) |
Return current Initial CRC value.
- Note:
- If the CRC size is less than 32 bits, the least significant bits are used to read the correct value INIT INIT LL_CRC_GetInitialData
- Parameters:
-
CRCx CRC Instance
- Return values:
-
Value programmed in Programmable initial CRC value register
Definition at line 292 of file stm32l4xx_ll_crc.h.
| __STATIC_INLINE uint32_t LL_CRC_GetInputDataReverseMode | ( | CRC_TypeDef * | CRCx ) |
Return type of reversal for input data bit order CR REV_IN LL_CRC_GetInputDataReverseMode.
- Parameters:
-
CRCx CRC Instance
- Return values:
-
Returned value can be one of the following values: - LL_CRC_INDATA_REVERSE_NONE
- LL_CRC_INDATA_REVERSE_BYTE
- LL_CRC_INDATA_REVERSE_HALFWORD
- LL_CRC_INDATA_REVERSE_WORD
Definition at line 237 of file stm32l4xx_ll_crc.h.
| __STATIC_INLINE uint32_t LL_CRC_GetOutputDataReverseMode | ( | CRC_TypeDef * | CRCx ) |
Configure the reversal of the bit order of the Output data CR REV_OUT LL_CRC_GetOutputDataReverseMode.
- Parameters:
-
CRCx CRC Instance
- Return values:
-
Returned value can be one of the following values: - LL_CRC_OUTDATA_REVERSE_NONE
- LL_CRC_OUTDATA_REVERSE_BIT
Definition at line 264 of file stm32l4xx_ll_crc.h.
| __STATIC_INLINE uint32_t LL_CRC_GetPolynomialCoef | ( | CRC_TypeDef * | CRCx ) |
Return current Programmable polynomial value.
- Note:
- Please check Reference Manual and existing Errata Sheets, regarding possible limitations for Polynomial values usage. For example, for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 is written 0x65 POL POL LL_CRC_GetPolynomialCoef
- Parameters:
-
CRCx CRC Instance
- Return values:
-
Value programmed in Programmable Polynomial value register
Definition at line 323 of file stm32l4xx_ll_crc.h.
| __STATIC_INLINE uint32_t LL_CRC_GetPolynomialSize | ( | CRC_TypeDef * | CRCx ) |
Return size of the polynomial.
CR POLYSIZE LL_CRC_GetPolynomialSize
- Parameters:
-
CRCx CRC Instance
- Return values:
-
Returned value can be one of the following values: - LL_CRC_POLYLENGTH_32B
- LL_CRC_POLYLENGTH_16B
- LL_CRC_POLYLENGTH_8B
- LL_CRC_POLYLENGTH_7B
Definition at line 206 of file stm32l4xx_ll_crc.h.
| __STATIC_INLINE void LL_CRC_ResetCRCCalculationUnit | ( | CRC_TypeDef * | CRCx ) |
Reset the CRC calculation unit.
- Note:
- If Programmable Initial CRC value feature is available, also set the Data Register to the value stored in the CRC_INIT register, otherwise, reset Data Register to its default value. CR RESET LL_CRC_ResetCRCCalculationUnit
- Parameters:
-
CRCx CRC Instance
- Return values:
-
None
Definition at line 175 of file stm32l4xx_ll_crc.h.
| __STATIC_INLINE void LL_CRC_SetInitialData | ( | CRC_TypeDef * | CRCx, |
| uint32_t | InitCrc | ||
| ) |
Initialize the Programmable initial CRC value.
- Note:
- If the CRC size is less than 32 bits, the least significant bits are used to write the correct value
- LL_CRC_DEFAULT_CRC_INITVALUE could be used as value for InitCrc parameter. INIT INIT LL_CRC_SetInitialData
- Parameters:
-
CRCx CRC Instance InitCrc Value to be programmed in Programmable initial CRC value register
- Return values:
-
None
Definition at line 279 of file stm32l4xx_ll_crc.h.
| __STATIC_INLINE void LL_CRC_SetInputDataReverseMode | ( | CRC_TypeDef * | CRCx, |
| uint32_t | ReverseMode | ||
| ) |
Configure the reversal of the bit order of the input data CR REV_IN LL_CRC_SetInputDataReverseMode.
- Parameters:
-
CRCx CRC Instance ReverseMode This parameter can be one of the following values: - LL_CRC_INDATA_REVERSE_NONE
- LL_CRC_INDATA_REVERSE_BYTE
- LL_CRC_INDATA_REVERSE_HALFWORD
- LL_CRC_INDATA_REVERSE_WORD
- Return values:
-
None
Definition at line 222 of file stm32l4xx_ll_crc.h.
| __STATIC_INLINE void LL_CRC_SetOutputDataReverseMode | ( | CRC_TypeDef * | CRCx, |
| uint32_t | ReverseMode | ||
| ) |
Configure the reversal of the bit order of the Output data CR REV_OUT LL_CRC_SetOutputDataReverseMode.
- Parameters:
-
CRCx CRC Instance ReverseMode This parameter can be one of the following values: - LL_CRC_OUTDATA_REVERSE_NONE
- LL_CRC_OUTDATA_REVERSE_BIT
- Return values:
-
None
Definition at line 251 of file stm32l4xx_ll_crc.h.
| __STATIC_INLINE void LL_CRC_SetPolynomialCoef | ( | CRC_TypeDef * | CRCx, |
| uint32_t | PolynomCoef | ||
| ) |
Initialize the Programmable polynomial value (coefficients of the polynomial to be used for CRC calculation).
- Note:
- LL_CRC_DEFAULT_CRC32_POLY could be used as value for PolynomCoef parameter.
- Please check Reference Manual and existing Errata Sheets, regarding possible limitations for Polynomial values usage. For example, for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 is written 0x65 POL POL LL_CRC_SetPolynomialCoef
- Parameters:
-
CRCx CRC Instance PolynomCoef Value to be programmed in Programmable Polynomial value register
- Return values:
-
None
Definition at line 309 of file stm32l4xx_ll_crc.h.
| __STATIC_INLINE void LL_CRC_SetPolynomialSize | ( | CRC_TypeDef * | CRCx, |
| uint32_t | PolySize | ||
| ) |
Configure size of the polynomial.
CR POLYSIZE LL_CRC_SetPolynomialSize
- Parameters:
-
CRCx CRC Instance PolySize This parameter can be one of the following values: - LL_CRC_POLYLENGTH_32B
- LL_CRC_POLYLENGTH_16B
- LL_CRC_POLYLENGTH_8B
- LL_CRC_POLYLENGTH_7B
- Return values:
-
None
Definition at line 191 of file stm32l4xx_ll_crc.h.
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