----
<code>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;
} </code>
----<br />
===Captured Meter Data===
There have been two packet types observed thus far, a 0x55 and a 0xD5 packet.