Functions that provide access to cyclic redundancy code (CRC) calculation. See crc.h
for source code.
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uint16_t | halCommonCrc16 (uint8_t newByte, uint16_t prevResult) |
| Calculates 16-bit cyclic redundancy code (CITT CRC 16).
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|
uint32_t | halCommonCrc32 (uint8_t newByte, uint32_t prevResult) |
| Calculates 32-bit cyclic redundancy code.
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Functions that provide access to cyclic redundancy code (CRC) calculation. See crc.h
for source code.
#define CRC32_END 0xDEBB20E3L |
#define INITIAL_CRC 0xFFFFFFFFL |
uint16_t halCommonCrc16 |
( |
uint8_t |
newByte, |
|
|
uint16_t |
prevResult |
|
) |
| |
Calculates 16-bit cyclic redundancy code (CITT CRC 16).
Applies the standard CITT CRC 16 polynomial to a single byte. It should support being called first with an initial value, then repeatedly until all data is processed.
- Parameters
-
newByte | The new byte to be run through CRC. |
prevResult | The previous CRC result. |
- Returns
- The new CRC result.
uint32_t halCommonCrc32 |
( |
uint8_t |
newByte, |
|
|
uint32_t |
prevResult |
|
) |
| |
Calculates 32-bit cyclic redundancy code.
- Note
- On some radios or micros, the CRC for error detection on packet data is calculated in hardware.
Applies a CRC32 polynomial to a single byte. It should support being called first with an initial value, then repeatedly until all data is processed.
- Parameters
-
newByte | The new byte to be run through CRC. |
prevResult | The previous CRC result. |
- Returns
- The new CRC result.