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Code Issues Wiki Activity

Use CRC rather than simple checksum for EEPROM (#2517)

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Use CRC rather than simple checksum for EEPROM
This commit is contained in:
Martin Budden 2017-03-08 17:50:45 +00:00 • committed by GitHub
parent 9c03b32114
commit a77e424dec
3 changed files with 49 additions and 47 deletions
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11
src/main/common/maths.c
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@ -350,6 +350,17 @@ uint16_t crc16_ccitt(uint16_t crc, unsigned char a)
return crc;
}
uint16_t crc16_ccitt_update(uint16_t crc, const void *data, uint32_t length)
{
const uint8_t *p = (const uint8_t *)data;
const uint8_t *pend = p + length;
for (; p != pend; p++) {
crc = crc16_ccitt(crc, *p);
}
return crc;
}
uint8_t crc8_dvb_s2(uint8_t crc, unsigned char a)
{
crc ^= a;