zigbee checksum calculator | zigbee checksum calculation
The page covers zigbee checksum calculator. It mentions step by step method to calculate checksum of zigbee frame. The zigbee checksum calculator takes input in hex format and provides output in hex format.
Zigbee frame consists of following fields in the sequence.
• Start Delimiter, Size= 1 byte (value = 0x7E)
• Length of frame, Size = 2 bytes
• Frame Data (consists of frame type of 1 byte and Data part)
• Checksum of size equal to 1 byte
EXAMPLE of zigbee checksum calculator:
INPUTS: 0x17, 0x01, 0x00, 0x13, 0xA2, 0x00, 0x40, 0xAD, 0x14, 0x2E, 0xFF, 0xFE, 0x02, 0x44, 0x42
OUTPUT: 7E (Output is in HEX format)
Method used in zigbee checksum calculator
Following step by step method is used in this zigbee checksum calculator.
➨Step-1: Add all the bytes of zigbee frame or packet. Exclude start delimiter (i.e. 0x7E)
and length of zigbee packet which occupies second byte and third byte.
➨Step-2: Extract only lowest 8 bits from the result obtained in the step-1.
➨Step-3: Now substract the result obtained in step-2 from 0xFF.
➨Step-4: The result of substraction in step-3 is the zigbee checksum.

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