Cyclic Redundancy Code (CRC)#
Functions that provide access to cyclic redundancy code (CRC) calculation. See crc.h for source code.
Functions#
Calculates 16-bit cyclic redundancy code (CITT CRC 16).
Calculates 32-bit cyclic redundancy code.
Function Documentation#
halCommonCrc16#
uint16_t halCommonCrc16 (uint8_t newByte, uint16_t prevResult)
Calculates 16-bit cyclic redundancy code (CITT CRC 16).
| N/A | newByte | The new byte to be run through CRC. |
| N/A | prevResult | The previous CRC result. |
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.
Returns
The new CRC result.
38 of file /mnt/raid/workspaces/ws.S2kiimDMR/overlay/gsdk/platform/base/hal/micro/crc.hhalCommonCrc32#
uint32_t halCommonCrc32 (uint8_t newByte, uint32_t prevResult)
Calculates 32-bit cyclic redundancy code.
| N/A | newByte | The new byte to be run through CRC. |
| N/A | prevResult | The previous CRC result. |
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.
Returns
The new CRC result.
55 of file /mnt/raid/workspaces/ws.S2kiimDMR/overlay/gsdk/platform/base/hal/micro/crc.hMacro Definition Documentation#
INITIAL_CRC#
#define INITIAL_CRCValue:
0xFFFFFFFFL
58 of file /mnt/raid/workspaces/ws.S2kiimDMR/overlay/gsdk/platform/base/hal/micro/crc.hCRC32_START#
#define CRC32_STARTValue:
INITIAL_CRC
59 of file /mnt/raid/workspaces/ws.S2kiimDMR/overlay/gsdk/platform/base/hal/micro/crc.hCRC32_END#
#define CRC32_ENDValue:
0xDEBB20E3L
60 of file /mnt/raid/workspaces/ws.S2kiimDMR/overlay/gsdk/platform/base/hal/micro/crc.h