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uint16_t Landis_crc16 (uint16_t crc, const std::vector<uint8_t> &data, size_t size) {
// CoServ CRC = 0x45F8
// Oncor CRC = 0x5FD6
// Hard coded Poly 0x1021
uint16_t i = 0;
while (size--) {
crc ^= data[i] << 8;
i++;
for (unsigned k = 0; k < 8; k++)
crc = crc & 0x8000 ? (crc << 1) ^ 0x1021 : crc << 1;
}
return crc;
}
Landis+Gyr GridStream Protocol (view source)
Revision as of 03:14, 6 March 2021
, 03:14, 6 March 2021→Checksum
====Checksum====
----
<syntaxhighlight lang="c++">
uint16_t Landis_crc16 (uint16_t crc, const std::vector<uint8_t> &data, size_t size) {
