diff options
Diffstat (limited to 'src/org/traccar/helper')
| -rw-r--r-- | src/org/traccar/helper/Checksum.java | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/org/traccar/helper/Checksum.java b/src/org/traccar/helper/Checksum.java index f08292392..43ba6a689 100644 --- a/src/org/traccar/helper/Checksum.java +++ b/src/org/traccar/helper/Checksum.java @@ -131,6 +131,7 @@ public final class Checksum { // More info: http://reveng.sourceforge.net/crc-catalogue/16.htm public static final String CRC16_IBM = "IBM"; + public static final String CRC16_MODBUS = "MODBUS"; public static final String CRC16_X25 = "X-25"; public static final String CRC16_CCITT_FALSE = "CCITT-FALSE"; public static final String CRC16_KERMIT = "KERMIT"; @@ -159,6 +160,8 @@ public final class Checksum { switch (type) { case CRC16_IBM: return crc16Reflected(buf, 0, CRC16_IBM_TABLE); + case CRC16_MODBUS: + return crc16Reflected(buf, 0xFFFF, CRC16_IBM_TABLE); case CRC16_X25: return crc16Reflected(buf, 0xFFFF, CRC16_CCITT_TABLE_REVERSE) ^ 0xFFFF; case CRC16_CCITT_FALSE: |