What is the formula to find the checksum
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To calculate the checksum of an API frame:
Add all bytes of the packet, except the start delimiter 0x7E and the length (the second and third bytes).
Keep only the lowest 8 bits from the result.
Subtract this quantity from 0xFF.
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Answer:
To calculate the checksum of an API frame: Add all bytes of the packet, except the start delimiter 0x7E and the length (the second and third bytes). Keep only the lowest 8 bits from the result. Subtract this quantity from 0xFF
Explanation:
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