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PSoC 6 Peripheral Driver Library
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PSoC 6 Peripheral Driver Library
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This structure holds the initialization values for the CRC feature, only for CPUSS_ver2.
Data Fields | |
| bool | dataReverse |
| Specifies the bit order in which a data byte is processed (reversal is performed after XORing): 'false': Most significant bit (bit 1) first. More... | |
| uint32_t | dataXor |
| Specifies a byte mask with which each data byte is XORed. More... | |
| bool | reminderReverse |
| Specifies whether the remainder is bit reversed (reversal is performed after XORing). More... | |
| uint32_t | reminderXor |
| Specifies a mask with which the remainder is XORed. More... | |
| uint32_t | polynomial |
| CRC polynomial. More... | |
| uint32_t | lfsrInitVal |
| The initial value of the Linear Feedback Shift Register. | |
| bool cy_stc_dma_crc_config_t::dataReverse |
Specifies the bit order in which a data byte is processed (reversal is performed after XORing): 'false': Most significant bit (bit 1) first.
'true': Least significant bit (bit 0) first.
| uint32_t cy_stc_dma_crc_config_t::dataXor |
Specifies a byte mask with which each data byte is XORed.
The XOR is performed before data reversal.
| bool cy_stc_dma_crc_config_t::reminderReverse |
Specifies whether the remainder is bit reversed (reversal is performed after XORing).
Note: this parameter doesn't affect the CRC value stored into the dstAddress. The reversed value remains in the CRC_REM_RESULT register.
| uint32_t cy_stc_dma_crc_config_t::reminderXor |
Specifies a mask with which the remainder is XORed.
The XOR is performed before remainder reversal. Note: this parameter doesn't affect the CRC value stored into the dstAddress. The XORed value remains in the CRC_REM_RESULT register.
| uint32_t cy_stc_dma_crc_config_t::polynomial |
CRC polynomial.
The polynomial is represented WITHOUT the high order bit (this bit is always assumed '1'). The polynomial should be aligned/shifted such that the more significant bits (bit 31 and down) contain the polynomial and the less significant bits (bit 0 and up) contain padding '0's. Some frequently used polynomials: